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This paper analyses technology-based instruction on data-analysis with box plots. Examples of instruction taken from the research literature inform a study of two classes of 17 year-old students (upper secondary) in which the mathematical relationships that their teachers targeted are distinguished as being, or not being, relevant to statistical analysis. In analysing the features of technologies, the paper identifies the potential of displaying dot plots and corresponding box plots on the same screen display as being a particularly powerful way of motivating new interpretations of data structures for learners.

There is an expectation that new science teachers will be able to effectively use a range of information communication technology (ICT) related resources in the science classroom in order to enhance student learning. All school systems in Australia are in the process of providing teachers with ICT professional development and infrastructure. This paper outlines a range of initiatives designed to integrate ICT in a compulsory science education unit for students enrolled in a Graduate Diploma in Secondary Education. An action research model based on constructivist principles was used to evaluate the effectiveness of modelling, open-ended co-operative group activities and authentic assessment in enabling students to enhance their ICT skills, knowledge and pedagogical content knowledge in a science education context. Multiple sources of data were generated including a pre and post unit questionnaire that was analysed using Rasch modelling. The questionnaire determined students' perceptions of their preparedness to teach using ICT. The findings of this research suggest that some skills warranted greater attention in the unit, but students' pedagogical knowledge and knowledge and critique of ICT resources were enhanced over the duration of the unit.

The issue of unfairness arises in high-stakes public examinations when students choose questions from alternatives that are offered and marks on the alternatives turn out to be discrepant. This paper addresses and defines unfairness and discrepancy in the context of alternative questions in Physics Tertiary Entrance Examinations (TEE) in Western Australia. As well, I present an analysis of question characteristics that explain observed marks-differences. The characteristics mainly relate to the construction of the text of questions, the detail on diagrams, and requirements for calculation. The list of characteristics could inform the setting of compulsory as well as alternative examination questions. The paper includes a brief exploration of results by gender on the alternative Physics TEE questions.

In this paper we discuss the development and implementation of a questionnaire that measures preparedness to teach secondary school science with information and communication technologies (ICT). The questionnaire was designed for the purpose of evaluating the effectiveness of instruction in a science education unit in a Graduate Diploma teacher education course. Rasch analysis of the pre- and post-unit responses indicated domains of expertise for which students perceived they had improved their knowledge during the unit, and domains for which they perceived they were less knowledgeable after the unit than before it. We discuss students' responses in relation to the unit, and report the technical decisions that we made as part of the analysis. The questionnaire could be adapted easily to suit preservice teacher education in disciplines other than science. (Contains 1 table and 3 figures.)

This paper presents a critical analysis of data analysis requirements in physics tertiary entrance examinations. The setting is Western Australia. Common aspects of the questions asked over 14 years and changes in the questions since a major syllabus reform are identified. Similar changes in other jurisdictions are referenced. The data analysis questions reflect minimally the changes in emphasis in the reform syllabus. They imply science is unassailable laws and not science is inquiry.

Interpretation and construction of graphs are central to the study of physics and to performance in physics. In this paper, I explore the interpretation and construction processes called upon in questions with a graphical component, in Western Australian Physics Tertiary Entrance Examinations. In addition, I list errors made by students as reported by examiners and offer explanations for the errors. Outcomes of the inquiry are the identification of sources of challenge in the graphing questions, including requirements to calculate gradient and analyse experimental data. I also identify question structures that could be barriers to students' understanding the examination questions. The micro-analysis of graphing in one jurisdiction can inform assessment of high-school physics in general.

This paper provides a pragmatic view of efficient use of graphics calculators. Efficiency is described in terms of quick and easy calculation, as debated and evidenced in a Year 12 calculus class. Students' methods of calculation are analysed in terms of the algebraic understanding and technical skills that underpinned them. Patterns in students' selection of methods from the available possibilities and the social promotion of methods are described. I argue that students showed critical attitudes towards quickness in calculation, that some were innovative and performed advanced algebra in their pursuit of quickness, and I identify implications of the students' actions for teaching and learning. (Contains 12 figures.)

Inquires into assessment items classified as "extended pieces of work" in applicable mathematics in Western Australia. Identifies opportunities for graphics calculator use in extended pieces implemented in schools. Concludes that availability of the technology has widened the scope of approaches used in extended pieces of work in valuable ways. Calls for "black box" use of the calculator. (Contains 27 references.) (Author/NB)

Presents an exploration of conversation in a single episode of a 12th grade girls' calculus class. Analyzes Habermasian communicative competence which requires students to show critical thinking and the ability to express their views. Explains learning outcomes by teachers' mode of questioning, cooperative endeavor by students, instructional sequences, and use of technologies including the graphics calculator. (Author/KHR)

Explores the extent and nature of students' calculator usage as determined from examination scripts in the Western Australian Calculus Tertiary Entrance Examination. Discusses errors made and understanding called upon for seven questions. Discusses instruction and assessment of skills associated with graphical interpretation. (Author/KHR)

Investigates gender-related effects on the Western Australian Calculus Tertiary Entrance Examinations for the period 1995-2000, three years before and three years after graphics calculators were introduced. Considers students' total examination scores, scores on questions grouped by curriculum components, and students' use of graphics calculators from the year 2000 examination. Compares the performance of girls with that of boys. (Author/KHR)

Describes an inquiry into students' uses of graphics calculators in the Tertiary Entrance Examination of Calculus in Western Australia for 1998. Discusses a comparative analysis of boys' and girls' performances. Indicates that the main areas of difficulty for students are interpreting graphing calculator outputs and knowing when use of graphing calculators is appropriate or possible. (Author/ASK)

Explores mathematical identity or self-concept through two classroom episodes in a senior high school class. (MM)

Presents an inquiry into students' conceptual development of a graphics calculator function for direction. Discusses reflective thinking and reflective enculturation, operational and structural understanding, and situated abstraction. (Contains 33 references.) (Author/ASK)

Analyzes the development of one student's understanding of vector magnitude and how her problem solving was mediated by use of the absolute value graphics calculator function. (Contains 35 references.) (Author/ASK)

Describes students' written answers that seemed technology-assisted in the 1999 Calculus Tertiary Entrance Examination (TEE). Illustrates how in the 1999 Calculus TEE some students used their calculators in flexible ways. (ASK)

Describes a research study where constructivism was used as the rationale for the design, implementation, and evaluation of four technology-based investigations for Year 12 Applicable Mathematics students. Indicates that for learning activities involving school assessment, many students chose not to work collaboratively. (Contains 21 references.) (Author/ASK)