Problem-based and thinking talk write learning model, mathematical reasoning, and transformation geometry

Several studies on learning mathematics show that students' reasoning abilities are still low. Students may be more introduced to the use of formulas and memorizing formulas without involving reasoning. This reason is what underlies researchers to conduct research using the Problem Based Learning and Think Talk Write models. This study aims to 1) determine the effectiveness of mathematics learning by using Problem-Based Learning to improve mathematical reasoning abilities, 2) determine the effectiveness of mathematics learning by using Think Talk Write learning to enhance mathematical reasoning abilities, and 3) determine the difference between Problem-Based Learning and Think Talk Write learning models to improve mathematical reasoning abilities. The research method used in this study is quasi-experimental. The design used a pretest-posttest with a randomized control group design. Data collection techniques use test instruments to measure mathematical reasoning abilities and questionnaires to measure student learning interest. The results showed that mathematics learning with Problem-Based Learning model learning is effective in terms of increasing mathematical reasoning abilities. Mathematical learning with Think Talk Write learning models are effective in terms of increasing mathematical reasoning abilities. And, there is no difference between the Problem-Based Learning and Think Talk Write model for improving mathematical reasoning abilities.