Agroecosystem area has abundant natural resources, but these natural resources cannot be utilized as learning resources needed in the learning process of students becoming passive, comfortable and power-efficient in remembering students. Learning involving students is done by learning Brain-Based Learning (BBL) collaborated with Talking Chips type collaborative learning model. The purpose of this study is to obtain a development process, obtain a valid model, and obtain a Talking Chips learning a model based on Brain-Based Learning (BBL) that is practical for SMP learning in the Agroecosystem area. This research was conducted in SMP Negeri 9 Jember with research subjects of class VII B in the academic year 2018/2019. The type of this research was (research and development), using 4-D model Thiagarajan, but only used 3 stages define, design, and develop. The technique of collecting data is by collecting product validation data, test methods, interviews with teachers, questionnaire teachers and students and observations. The data analysis technique consisted of product validation analysis, analytic analysis with N-gain and learning retention, and practicality analysis. The product validation results, which are 89.33%, are categorized as very valid. The effectiveness of learning outcomes is 0.78 with a high category while the retention results obtained based on the learning retention analysis are 89 with a high category. The results of practicality obtained from the teacher questionnaire response were 98%, the category was very good and the questionnaire student responses were 96% with a very good category.

This research aimed to determine the enhancement of communication skills on lightwave material physics learning with Science, Technology, Engineering, and Mathematics (STEM) approach. The benefit of this research is to train students to develop communication skills and as an innovation in learning physics in lightwave material. This research is Quasy Experimental research with Non-equivalent Control Group Design. XI IPA 7 as the experimental class and XI IPA 5 as the control class were recruited in this study as A subjects. The communication skills which are improved in this research include three indicators, including articulate thoughts and ideas, using communication for a range of purposes, and using several media and technology. Oral and written communication skills have improved from low to very high categories with high improvement criteria. The results of the questionnaire analysis showed that the application of physics learning with the STEM approach was effective in improving communication skills. Based on the results of this study, it can be concluded that learning physics with a STEM approach can improve communication skills from low to very high categories.

A development research that aims to see the effectiveness of the use of the problembased learning model enactive-iconic-symbolic-oriented blended learning on the problem-solving skills of 4

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