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The challenges of finding interesting and interactive teaching materials is one of the causes of low science learning outcomes. Accordingly, this study formulates valid, practical, and effective flipbook-based e-modules for improving junior high school students' science learning outcomes. The Research and Development (R&D) method with the ADDIE development model was adopted. Then, the effectiveness of proposed e-modules in improving cognitive learning outcomes through pretest and posttest questions was measured. The garnered data was analyzed using the t-test and N-Gain. The material aspect was declared valid with 87% accuracy, while the media aspect yielded 84% accuracy, falling under the valid category. The practicality test for the e-module conducted by involving the teacher resulted in a 97% score in the practical category. Similarly, the readability test conducted by involving the students resulted in a 93% score in the practical category. The analysis of the test results indicated a significant difference in cognitive learning outcomes before and after using flipbook-based e-modules, with a sig value of 0.000 < a = 0.05. The N-Gain test yielded a value of 0.70 in the medium criteria, placing the level of effectiveness in the moderately effective category. These results suggest that the implementation of the Problem-Based Learning (PBL) model, facilitated by flipbook-based interactive e-modules in learning activities, can enhance the science learning outcomes of junior high school students.

Weeds that grow around irrigated rice fields can affect the growth of rice plants. This study aims to determine the diversity of weeds in the rice fields of Mulyorejo Village, Malang City, Indonesia. The research was conducted from October - November 2022. The research used a survey with direct descriptive and exploratory methods. The study used a survey method with descriptive and direct exploration methods on an area of 677 m2 at an altitude of 478 m above sea level. Observations were made on weed species, dominance, and diversity index. The results showed that 13 species of weeds were found in the irrigated rice fields of Mulyorejo Village, Malang City, which was dominated by water clover (Marsilea crenata) (20.42%), which is classified as a broadleaf weed. The dominant weed was taro (Alocasia macrorrhizos) (SDR = 5.33). The minor weed is water lactic (Ludwigia decurrens). The rice field weed diversity index is 1.989, classified as moderate. Knowing the types of weed diversity in rice fields in Mulyorejo, it is hoped that it can facilitate the optimal handling process.

Online learning that has been carried out more or less in the past year has caused student studying saturation. The provision of material through Youtube videos, articles or handouts in pdf form is generally done by teachers. In fact, technology has provided many alternatives that can be used as more interesting learning media, for example Powtoon. Therefore, this study aims to provide training to teachers in developing materials in the form of Powtoon in order to increase students' learning motivation, especially during online learning. This research includes community service research. The steps taken are; 1) Pre-implementation, in the form of needs analysis, 2) Implementation, in the form of training with Powtoon development materials as learning media, filling out questionnaires, independent work, discussions and 3) Post-implementation, in the form of evaluation of activities. The implementation of the training showed the enthusiasm of the participants as seen from the life of the discussion session. Based on the questionnaire filled out by the participants, the implementation of the training has been well implemented with suggestions for adding other innovative media materials, and improving teacher competence in other matters. In addition, the results of the development and use of Powtoon media carried out by participants showed that students were enthusiastic and motivated in learning