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In the future, learning will be essentially characterized by the ability to regulate the learning process and monitor success independently from a teacher. The technical possibilities offer better access to learning contents, precise and more individualized feedback, and learning phases adapted precisely to the needs of the learner in terms of scope and pace. In this study, we investigate an important aspect of the digitization of teaching/learning processes using the example of laboratory scripts for chemistry students at university. The focus is on looking up terms and concepts in preparation for the lab internships, firstly in a paper-based glossary and secondly in a digital glossary. During a two-day study, a total of 16 students prepared for experiments on two topics with completely identical materials. We then studied the influence of content knowledge, motivation, and cognitive load. While all students show significant learning achievements, there are no significant differences between the groups. Furthermore, results show that pure digitization of information has no effect, despite the theoretically assumed advantages.

The development of a QR code as a barcode label contains information about the item to which it is attached. However, information on QR code development in engineering science laboratories is still limited. The aim of this research is to design the QR code lab manual for laboratory work in polytechnics engineering science course. In addition, the students' views in construct of easiness of use, usefulness and enjoyment using the QR code are also investigated. The QR code lab manual involved seven steps of development under the engagement theory in teaching and learning. Learning materials are embedded into the QR code within 1 sheet of an A4 size card. A total of 64 students were chosen using purposive sampling. Data from survey questionnaires revealed that the respondents have a high level for all the constructs. It has been suggested that students perceived the QR code lab manual developed as a useful tool that is easier to use in the future. This QR code lab manual allows educators to connect the traditional teaching style and provide students with a more genuine and unforgettable educational experiences. Future studies should consider a different experiment with the new design for QR codes with additional constructs and a variety of perspectives.

This study aimed to identify the least learned competencies, needs, and challenges of engineering physics students and teachers, and develop a laboratory manual for Engineering Physics through a mix method design and ADDIE model, but limited to analysis, design and development of Laboratory Manual only. The participants were six Engineering Physics Laboratory teachers and ten second year engineering students. The result showed that the prevailing challenges that needs to be addressed in the laboratory class were lack of updated instructional materials such as laboratory manuals and laboratory equipment, old laboratory apparatus that give inaccurate data and the least learned competencies were thermodynamics, waves and optics, and electricity and magnetism. From the least learned competencies, a laboratory manual was developed to address the needs identified by students and teachers. Results revealed that the developed laboratory manual is much acceptable (M=4.64), by experts. In particular, the laboratory manual is acceptable in terms of Content Quality (M = 4.69), Instructional Quality (M = 4.64) and Technical Quality (M = 4.58). In conclusion, the implementation of the engineering physics curriculum faces many challenges especially the lack of laboratory facilities and instructional materials. The validated developed laboratory manual was found very much acceptable and can be used to address the needs of the students and teachers of engineer physics. It is recommended that the laboratory manual will be used as a supplemental instructional material. Also, further review and evaluation of the manual maybe considered to make it more contextualized, localized and indigenized in the Philippine setting.

The research was carried out through research and development to produce an innovative chemistry laboratory workbook (InoChemLaW) followed by the implementation of the learning package in the teaching of chemistry. The result showed that a standard InoChemLaW has successfully been developed on the topic of Colligative Properties of solutions. The implementation of InoChemLaW was carried out onto the experimental class compared to the existing laboratory workbooks (ConChemLaW) in the control class. An InoChemLaW package helps the students to learn chemistry independently so that the learning stages are carried out systematically, the students are actively completed the projects, thereby increasing their knowledge and skills. Students' knowledge and skills respectively in experimental groups were found higher than that in control group, and both groups are significantly different. The developed InoChemLaw package is highly very good. It is recommended that innovative laboratory workbooks integrated with project-based learning can be developed and implemented for teaching of other chemistry subjects and science studies.

The purpose of this study is to develop a thinking process model that reveals cognitive bias through analyzing students' cognitive biases in processing experimental manuals. Twenty-two college students participated in the study. During the "making electromagnets" experimental activity, we collected students' concurrent verbal protocols, gaze positions, and experimental behaviors. After the experiment, we collected their retrospective verbal protocols and ensured reliability by diversifying the data. The collected data were analyzed inductively using the grounded theory methodology. The results showed that four categories of paradigm (causal conditions, phenomena, interactions, and contextual conditions) and fifteen concepts were derived. Students displayed bias in following the manual instructions due to the influence of causal conditions. When embodying biased representations as workspace entities, biased responses come from the influence of contextual conditions. Therefore, these can be developed in consideration of causal and contextual conditions when developing a manual, thereby reducing cognitive bias among students, and ultimately helping them perform accurate experiments.

This study explored the effect of conventional laboratory practical manuals on pre-service teachers' integrated science process skills (ISPS). A validated multiple-choice questionnaire with the ISPS components was used to collect data. No significant difference between pre-service subject-specific teachers' (biology, physics and chemistry) ISPS scores was found. The ISPS scores significantly increased along with proliferation in lab practical works, except for physics. Pre-service math teachers, who had no lab practical works, showed significantly higher ISPS scores than pre-service science teachers. The results indicated that all pre-service teachers' ISPS scores fell into intermediate level. Further, it was found that they possessed the lowest scores for such ISPS as identifying and controlling variable, stating operational definition and designing experiments. The common format of the conventional laboratory manual adopted from many universities need to be reformatted for engage learners in all ISPS. To improve learners' ISPS, higher-order thinking assignments should be intensively given to them.

To help educators deliver their physiology laboratory courses remotely, we developed an inexpensive, customizable hardware kit along with freely available teaching resources. We based the course design on four principles that should allow students to conduct insightful experiments on different physiological systems. First, the experimental setup should not be constrained to laboratory environments. Second, students should be able to take this course without prior coding and electronics experience. Third, the hardware kit should be relatively inexpensive, and all other resources should be freely available. Fourth, all resources should be customizable for educators. The hardware kit consists of commercially available electronic components, with a microcontroller as its hub (Arduino friendly). All measurement systems can be assembled without soldering. The hardware kit is cost-effective (approximately the cost of a textbook) and can be customized depending upon instructional needs. All software is freely available, and we share all necessary codes in open-access online repositories for simple use and customizability. All lab manuals and additional video tutorials are also freely available online and customizable. In our particular course, we have weekly asynchronous physiology lectures and one synchronous laboratory session, where students can get help with their equipment. In this article, we only focus on the novel and open-source laboratory part of the course. The laboratory includes four units [data acquisition, ECG, electromyography (EMG), activity classification] and one final project. It is our intent that these resources will allow other educators to rapidly implement their own remote physiology laboratories or to extend our work into other pedagogical applications of wearable technology.

The traditional laboratory investigation uses a procedure written on paper; students then record their responses on a supplied data page or laboratory notebook. In an attempt to make this process more efficient, the use of a Learning Management System (in this case D2L) was used to present the material and collect student feedback. Each student had a University supplied laptop, read the procedure from the screen and submitted answers through D2L. As anticipated there was no change in content knowledge. However surprisingly, subjects felt the paper and pencil approach was easier to use than computer entry. In a subsequent study, the same population in the same course completed an on-line only lecture and lab course. We will discuss the student's reaction to this on-line class.

Many agencies, organizations, and researchers have called for the incorporation of inquiry-based learning in college classrooms. Providing inquiry-based activities in laboratory courses is one way to promote reformed, student-centered teaching in introductory geoscience courses. However, the literature on inquiry has relatively few geoscience examples and features an array of modifiers that complicate instructor efforts to identify or adapt inquiry-based activities for their courses. We review several measurement protocols developed to assess inquiry in laboratory activities. We apply one of these to assess the level of inquiry present in four published physical geology laboratory manuals. While the majority of activities used in the published manuals were classified at low levels of inquiry, these manuals also contained examples of higher-level activities that were not identified in previous analyses. We describe the development of inquiry-based lessons for inclusion in a freshman-level physical geology laboratory course at a large public research university in the southeast U.S. and apply the same protocol to assess the laboratory course activities and discuss how some activities were adapted to increase inquiry levels. We discuss how other instructors or laboratory course developers can adapt existing activities to incorporate higher levels of inquiry in their laboratory courses, matching them with the type of information or skill they want students to learn.

This study investigated the effects of practical activities and manual on science students' academic performance on solubility in Uruan Local Education Authority of Akwa Ibom State. The study adopted pretest, posttest non randomized quasi experimental design. Three research questions and three hypotheses were formulated to guide the study. One hundred and four (104) science students from the population of two thousand, nine hundred and fifty (2, 950) senior secondary two in 2015/2016 academic session formed the sample size using simple random sampling technique. Instrument for data collection was a 20- multiple-choice-test item on the concept of solubility. The instrument was validated by three experienced secondary school science teachers of over 10 years teaching experience and by three lecturers from the department of science education and test and measurement unit of the University of Uyo, Uyo. Kuder Richardson formular 21was used in determining the reliability of the instrument was which 0.80. The research questions were answered using mean and standard deviation while the hypotheses were tested using Analysis of Covariance (ANCOVA). The findings of the study showed that students taught solubility with practical activities performed equally with their counterparts taught the same concept with practical manual. Results also showed that gender had no significant influence on the students' mean performance scores when taught solubility with practical activities and practical manual. Recommendations among others were that science teachers should make effective use of practical activities and manual in teaching abstract concepts like solubility.

The gross anatomy dissection course is considered to be one of the most important subjects in medical school. Advancing technology facilitates the production of e-learning material that can improve the learning of topographic anatomy during the course. The purpose of this study was to examine a locally produced audiovisual dissection manual's effects on performance in dissection, formal knowledge gained, motivation, emotions, learning behavior, and learning efficiency of the medical students. The results, combined with the total effort put into the production of the manual, should support decisions on further implementation of this kind of audiovisual e-learning resource into the university's curriculum. First-year medical students (n = 279) were randomly divided into three groups for two weeks within the regular dissection course hours during the dissection of the anterior and posterior triangles of the neck. Two groups received an audiovisual dissection manual (n = 96) or an improved written manual (n = 94) as an intervention, the control group (n = 89) received the standard dissection manual. After dissection, each student filled out tests and surveys and their dissections were evaluated. The audiovisual dissection manual did not have any significant positive effects on the examined parameters. The effects of the audiovisual dissection manual on the medical students' learning experience, as observed in this study, did not support further curriculum implementation of this kind of e-learning resource. This study can serve as an orientation for further evaluation and design of e-learning resources for the gross anatomy dissection course.

This study examines ideas of pre-service teachers on goals of biology practical in three purposely selected Colleges of Education. To this end, A researcher designed questionnaire which was adapted titled "views of preservice teachers on biology practical" to elicit information, and findings of a survey administered to 405 preservice teachers revealed divergent views with gender stereotypes on laboratory manual, e-learning and biology practical and with chi-square statistical tool used to analyze the research questions and results presented.

Pre-laboratory work has been shown to be an effective investment at undergraduate level in chemistry at the University of Bristol. A Dynamic Laboratory Manual (DLM) has been developed to allow undergraduate students to rehearse practicals using virtual experiments, video clips and a range of assessment support. The DLM has been shown to be highly successful in its goals. In this paper we describe the development and implementation of a DLM appropriate to post-16 students at school or college which also has applications in teacher training courses. First results from evaluation are presented which show an improvement in practical skill and cognition.

Chemistry laboratories play an essential role in the education of undergraduate Science, Technology, Engineering, and Mathematics (STEM) and non-STEM students. The extent of student learning in any educational environment depends largely on the effectiveness of the instructors. In chemistry laboratories at large universities, the instructors of record are typically graduate or undergraduate teaching assistants (TAs). Despite the importance of their role in the education of undergraduate students, TAs' instructional practices have been largely understudied outside specific reform efforts. In this study, we developed a segmented observation protocol, the Laboratory Observation Protocol for Undergraduate STEM (LOPUS), in order to characterize TAs' instructional styles in a General Chemistry laboratory curriculum. LOPUS captures both students' and TAs' behaviors every 2 min as well as initiators of verbal interactions and the nature of these verbal interactions (e.g., data analysis, explanation of concepts). Analyses of 19 videos collected from 15 TAs resulted in the identification of four instructional styles: the waiters, the busy bees, the observers, and the guides on-the-side. We found that students' behaviors were independent of these styles and limited to performing the laboratory activities, initiating conversation with TAs, and asking TAs questions. Interestingly, students rather than TAs were initiators of most verbal interactions, regardless of TAs' instructional styles. Finally, we found that the nature of TA-student verbal interactions was related to the nature of the laboratory activity (e.g., only following step-by-step instructions versus carrying out extensive data analysis). Implications of these findings for future research investigations and TA training are discussed.

An approach to create an interactive and inexpensive electronic book (eBook) for an undergraduate biochemistry laboratory course is presented. This approach featured the involvement of an undergraduate student in the lead role of designing and developing the eBook using Apple's iBooks Author application. The eBook, entitled "Introduction to Biochemical Methods", contains original, interactive course content, including laboratory protocols, lecture slides, images, videos, figures, and quizzes. Access to the book content was expanded through the creation of a Web-based version of the book. User access analytics on both the eBook and the Web site, along with student survey data related to the usage of and attitudes toward the eBook, also are presented. Although the "Introduction to Biochemical Methods" eBook was developed specifically for use in a particular course, adaptation of its content for use in other classrooms is invited, and educators are encouraged to adopt a similar approach (i.e., involving their students) in developing eBooks for courses at their learning institutions. The immersive nature of the design and development process provided significant learning experiences for the student who led the development of the eBook.

Reading materials used in undergraduate science classes have not received the same attention in the literature as those used in secondary schools. Additionally, reports critical of college textbooks and their prose are common. To assess both problems and determine the readability of assignments and texts used by geoscience faculty at the University of North Carolina at Charlotte, a readability study was conducted on the most commonly used textbooks, laboratory manuals, and supplemental materials (magazine/journal articles).

To support teaching and learning in the advanced placement (AP) chemistry laboratory, the College Board published a laboratory manual, "AP Chemistry Guided-Inquiry Experiments: Applying the Science Practices," in 2013 as part of the redesigned course. This article provides a discussion of the rationale for the existence of the manual as well as its form, content, and pedagogical orientation; a summary of the manual's content and structure; guidelines for how to use the manual in teaching AP chemistry; an overview of the laboratory manual development process; a review of and response to the most common criticisms directed at the manual; and finally a brief preview of future plans to enhance the manual and support its implementation. This contribution is part of a special issue on teaching introductory chemistry in the context of the advanced placement chemistry course redesign.

The "Saggi di naturali esperienze" was published in 1667 by one of the earliest scientific societies, the Accademia del Cimento. The book was a triumph for the ruling Medici family of Florence, and the commitment of the Accademia to experimentation helped the "Saggi" become the "laboratory manual" of the 18th century. The "Saggi" highlighted two key features of modern science: the pre-eminence of experimentation and the replication of experiments. Importantly, it also masked a third important feature, the role of argumentation. Separating argumentation from experimentation has contributed to the predominant use of practical work to demonstrate scientific principles, limiting it as a strategy for more fully engaging students with science.

For students who are not science majors, problem-based (PB) laboratories for first-year chemistry provide a more comprehensive experience than conventional expository ones. Implementing PB labs is reasonably easy, as the lab experiments may not need to change; what changes is the way the lab manual is set up and how the actual session is carried out. Rather than having a step-by-step procedure, the PB manual has general guidelines for the experiment, enabling students to develop experimental procedures of their own. During the lab session, a prelaboratory discussion is driven by the students' input and clarifies the details for each individual procedure. In addition to the engagement of the students in the lab, the result of this approach has been the development of students who are capable of formulating hypotheses and, more importantly, sound experimental procedures to test these hypotheses.

Mobile technologies offer new opportunities to improve dissection learning. This study examined the effect of using an iPad-based multimedia dissection manual during anatomy laboratory instruction on learner's perception of anatomy dissection activities and use of time. Three experimental dissection tables used iPads and three tables served as a control for two identical sessions. Trained, non-medical school anatomy faculty observers recorded use of resources at two-minute intervals for 20 observations per table. Students completed pre- and post-perception questionnaires. We used descriptive and inferential analyses. Twenty-one control and 22 experimental students participated. Compared with controls, experimental students reported significantly ("P" less than 0.05) less reliance on paper and instructor resources, greater ability to achieve anatomy laboratory objectives, and clarity of the role of dissection in learning anatomy. Experimental students indicated that the iPad helped them in dissection. We observed experimental students more on task (93% vs. 83% of the time) and less likely to be seeking an instructor (2% vs. 32%). The groups received similar attention from instructors (33% vs. 37%). Fifty-nine percent of the time at least one student was looking at the iPad. Groups clustered around the iPad a third of their time. We conclude that the iPad-manual aided learner engagement, achieved instructional objectives, and enhanced the effectiveness and efficiency of dissection education. (Contains 2 tables and 3 figures.)

This article describes the development of an interactive computer-based laboratory manual, created to facilitate the teaching and learning of medical histology. The overarching goal of developing the manual is to facilitate self-directed group interactivities that actively engage students during laboratory sessions. The design of the manual includes guided instruction for students to navigate virtual slides, exercises for students to monitor learning, and cases to provide clinical relevance. At the end of the laboratory activities, student groups can generate a laboratory report that may be used to provide formative feedback. The instructional value of the manual was evaluated by a questionnaire containing both closed-ended and open-ended items. Closed-ended items using a five-point Likert-scale assessed the format and navigation, instructional contents, group process, and learning process. Open-ended items assessed student's perception on the effectiveness of the manual in facilitating their learning. After implementation for two consecutive years, student evaluation of the manual was highly positive and indicated that it facilitated their learning by reinforcing and clarifying classroom sessions, improved their understanding, facilitated active and cooperative learning, and supported self-monitoring of their learning.

Because of the rapidly changing nature of chemical instrumentation, students must be trained in how to learn and understand new instruments. Toward this end, students are asked to create small instrument manuals, or instrument profiles, for the major pieces of equipment studied during an instrumental analysis course. This writing-intensive process of creating instrument profiles requires that students understand the basics of each type of instrument and that they are able to compare the instrument to other instruments. With the use of block and schematic diagrams, the major components within an instrument are emphasized such that students can discover subtle differences between types of instruments. Students' ability to teach themselves new instruments is demonstrated at the end of the semester by creating an instrument profile for an instrument not specifically discussed during the course and by giving a short oral presentation to the class, providing everyone with brief exposure to many more technologies. (Contains 2 figures.)

The literature on the pedagogical aspects of the photoelectric effect as used in the undergraduate student laboratory shows that little research has been done in this area. Our current study is an analysis of the instructions in 38, electronically published laboratory manuals for the photoelectric effect. The analyses were based on history and philosophy of science criteria that we had developed for evaluating the presentation of the photoelectric effect in introductory, university-physics textbooks. The results show that writers of laboratory instructions do not pay sufficient attention to the relevant background for the photoelectric effect. In our study, none of the instructions achieved a score of excellent, only 5% were scored as satisfactory, and only 7% mentioned the various aspects contained in our criteria. These results for our analysis of laboratory instructions are significantly less favorable than those achieved for physics textbooks in our previous study. Based on our work, we recommend that several historical aspects be included in all laboratory instructions for the photoelectric effect.

Between 1880 and 1920 the way science was taught in American High Schools changed dramatically. The old "lecture/demonstration" method, where information was presented to essentially passive students, was replaced by the "laboratory" method, where students performed their own experiments in specially constructed student laboratories. National leadership in education was generally weak during this period, and the new method required significant investments by the schools, but within a few decades American science education was rapidly and completely transformed. Previous studies of this fundamental change have concentrated on the activities of organizations like the NEA, the Bureau of Education and a few major universities, but the way in which these groups were able to effect actual changes in classroom practice is not completely clear. This article attempts to broaden the existing narrative by integrating the rich and largely ignored material culture of science education--such things as textbooks, lab manuals, student notebooks, science teaching instruments and scientific instrument catalogs. Surprisingly, much of this story can be seen in changes to the depiction of a single, venerable and otherwise unremarkable teaching instrument: the inclined plane.

In this article, the successful implementation of a development cycle for a physics teaching package based on game-like virtual reality software is reported. The cycle involved several iterations of evaluating students' use of the package followed by instructional and software development. The evaluation used a variety of techniques, including ethnographic observation, surveys, student focus groups and conventional assessment. The teaching package included a laboratory manual, instructional support materials and the "Real Time Relativity" software that simulates a world obeying special relativistic physics. Although the iterative development cycle was time consuming and costly, it gave rise to substantial improvements in the software user interface and in the students' learning experience. (Contains 5 figures and 3 tables.)

Several programs in health professional education require or are considering requiring upper-level human anatomy as prerequisite for their applicants. Undergraduate students are confronted with few institutions offering such a course, in part because of the expense and logistical issues associated with a cadaver-based human anatomy course. This study describes the development of and student reactions to an upper-level human anatomy laboratory course for undergraduate students that used a regional approach and contemporary, alternative teaching methods to a cadaver-based course. The alternative pedagogy to deliver the curriculum included use of commercially available, three-dimensional anatomical virtual dissection software, anatomical models coupled with a learning management system to offer Web-based learning, and a new laboratory manual with collaborative exercises designed to develop the student's anatomical skills and collaborative team skills. A Likert-scale survey with open-ended questions was used to ascertain student perceptions of the course and its various aspects. Students perceived that the noncadaver-based, upper-level human anatomy course with an engaging, regional approach is highly valuable in their learning of anatomy.

Many studies have stressed students' lack of understanding of experiments in laboratories. Some researchers suggest that if students design all or parts of entire experiment, as part of an inquiry-based approach, it would overcome certain difficulties. It requires that a procedure be written for experimental design. The aim of this paper is to describe the characteristics of a procedure in science laboratories, in an educational context. As a starting point, this paper proposes a model in the form of a hierarchical task diagram that gives the general structure of any procedure. This model allows both the analysis of existing procedures and the design of a new inquiry-based approach. The obtained characteristics are further organized into criteria that can help both teachers and students assess a procedure during and after its writing. These results are obtained through two different sets of data. First, the characteristics of procedures are established by analysing laboratory manuals. This allows the organization and type of information in procedures to be defined. This analysis reveals that students are seldom asked to write a full procedure, but sometimes have to specify tasks within a procedure. Secondly, iterative interviews are undertaken with teachers. This leads to the list of criteria to evaluate the procedure. (Contains 7 tables and 2 figures.)

The design, usage, and evaluation of a Web-based laboratory manual (WebLM) are described. The main aim of the WebLM is to support students while working in the laboratory by providing them with just-in-time information. Design guidelines for this electronic manual were derived from literature on cognitive load and user interface design. The WebLM was introduced in a Food Chemistry course at the Wageningen University. The evaluation showed a positive attitude towards the WebLM both by students (n = 79) and supervisors (n = 6). Furthermore, the WebLM proved to be a flexible platform, easy to maintain by teachers, easy to extend for future projects, and a promising research tool for monitoring student behavior in the laboratory classes. (Contains 4 tables and 5 figures.)

For the past several years, a team in the Department of Electrical Engineering (EE), National Chung Cheng University, Taiwan, has been establishing a pedagogical approach to embody embedded systems in the context of robotics. To alleviate the burden on students in the robotics curriculum in their junior and senior years, a training platform on embedded systems with co-design in hardware and software has been developed and fabricated as a supplement for these students. This general-purpose platform has several advantages over commercial training kits for embedded systems. For instance, the programming layer has been brought onto an open-source platform ported by Linux and [mu]C/OS-II such that it is mostly hardware-independent. Meanwhile, in addition to linking to fundamental library functions provided for robotics, users can program the codes not only in C language, but also through visual programming by means of a graphic interface developed along with the platform, allowing users to concentrate on higher-level robot function design. In other words, the platform facilitates rapid prototyping in robotics design. Meanwhile, a tailored laboratory manual associated with the platform has been designed and used in classes. Based on assessments and evaluation on the students who have completed this course, the curricular training is satisfactory and largely meets the requirements established at the design stage. (Contains 1 table and 12 figures.)

The purpose of this study was to understand one case of undergraduate inquiry-based instruction through the words and actions of students and instructors. The data sources included fieldnotes from 16 of 29 classes, two sets of student and instructor interviews (beginning and end of the semester), and a collection of artifacts, such as the laboratory manual, lecture handouts, and the course syllabus. The participants for this study included four faculty instructors and two purposively selected student groups, totaling eight students. We found the instructors' two course goals, (a) teaching students how scientists do science and (b) using an interdisciplinary approach to develop students' content knowledge of the big ideas in science, were consistent with our observations and the students' descriptions of their experience in the course. However, we observed, and the students also noted, an important feature of the course that the instructors did not describe as a course goal was its reliance on the social nature of learning. This telling case demonstrates that inquiry-based instruction is achievable in undergraduate science education. Implications are discussed for college science instructors interested in inquiry teaching.

For distance-education students, the requirement for a laboratory course can present a significant hurdle to completing degree requirements. To better serve these nontraditional students, the authors developed a distance version of the laboratory course to provide a hands-on experience similar to that of on-campus students. In order to make the program succeed, they modified the existing nonmajors general-biology lab manual (Mickle et al. 2000) used on-campus so that the exercises would be comparable, yet reconfigured for a home situation. (Contains 7 figures.)

Conventional physics laboratory courses generally include an emphasis on increasing students' ability to carry out data analysis according to scientific practice, in particular, those aspects that relate to measurement uncertainty. This study evaluates the efficacy of the conventional approach by analyzing the understanding of measurement of freshmen following the physics major sequence, i.e., top achievers, with regard to data collection, data processing, and data comparison, through pre- and postinstruction tests by using an established instrument. The findings show that the laboratory course improved the performance of the majority of students insofar as the more mechanical aspects of data collection and data processing were concerned. However, only about 20% of the cohort of physics majors exhibited a deeper understanding of measurement uncertainty required for data comparison. (Contains 5 tables, 2 figures, and 31 notes.)

This paper outlines several benchtop nanoscale patterning experiments that can be incorporated into undergraduate laboratories or advanced high school chemistry curricula. The experiments, supplemented by an online video lab manual, are based on soft lithographic techniques such as replica molding, micro-molding in capillaries, and micro-contact printing and etching. These simple labs were designed using readily available and inexpensive materials such as compact discs, glass microscope slides, and curable polymers. In these labs, students could generate polymeric and metallic structures with feature sizes as small as 110 nm. The feasibility of these experiments was tested in a two-quarter, research-based course on nanoscience and technology for first- and second-year students at Northwestern University. (Contains 6 figures.)

Many plant biologists claim that there is a tremendous bias towards the study of animals in science curricula, however, there is even less attention given to topics on fungi. On average, Biology laboratory manuals will have only one fungi exercise, and most of the time, it is mainly descriptive. As we developed this exercise we realized how much students benefit from working with the "shotgun" fungus "Pilobolus crystallinus" in an experimental setting. With this exercise students will learn about a basic reproductive cycle, enhance their lab skills, become familiar with data gathering, and write a lab report. In addition, students will use an experimental approach that prompts them to ask questions and make connections with the topic. This laboratory exercise is appropriate for advanced placement high school biology and first year college-level biology classes.

Chromatography is a process by which mixtures can be separated or substances can be purified. Biological and chemical laboratories use many different types of chromatographic processes. For example, the pharmaceutical industry uses chromatographic techniques to purify drugs, medical labs use them to identify blood components such as cholesterol, crime labs use them to analyze evidence, and the oil industry uses them to purify components of oil including gasoline. Many lab manuals for high school biology courses include at least one lab designed to introduce students to the techniques of chromatography and associated biological concepts. The procedure most commonly selected is paper chromatography for the separation of plant pigments or different colored inks. These labs are easily performed in the typical high school setting but tend to take most of the class period to complete a single chromatograph. This article describes another technique that can be easily used, micro-column chromatography, which has the advantage of allowing many chromatographs to be completed during a single class period, thereby enabling many experiments to be conducted during that time. It also has the advantage of easily allowing for the different components of the sample to be collected for additional analysis. The micro-column chromatography activities described in this article allow for a number of concepts highlighted in the National Science Education Standards to be addressed. (Contains 3 figures and 1 table.)