Validity of React Model Based Learning Devices to Improve Mathematical Communication Ability

Abstract

This study aims to produce learning tools based on the REACT model to improve students' valid communication skills. Learning tools developed in the form of Learning Implementation Plans (RPP) and Mathematics Student Worksheets (LKPD) in grade VIII SMP. The learning model is a REACT model consisting of Relating (associating), Experiencing (experiencing), Applying (applying), Cooperating (working together), and Transferring (transferring). The purpose of the REACT Model is to aim for students to be actively involved physically and mentally and there are activities that can bring students to discover the principles themselves in the material being studied. This learning tool uses the Plomp development model which consists of 3 stages, namely the initial investigation phase (preliminary research), the development phase (development or prototyping phase) and the assessment phase (assessment phase). The learning device is said to be valid if it meets the content and construct validity. The instrument used is a validation sheet that contains aspects of presentation, content and material feasibility, graphics or appearance and language. The results of the experts' validation indicate that the learning device meets valid criteria.

Improvement Of Students' Mathematical Problem Solving Skills With The REACT Model

“…Contextual learning itself is learning that can motivate and relate problems in everyday life. In line with Dewi (in Sastri et al, 2018) that REACT is a learning model that links experiences in daily life for students. REACT learning model is a contextual learning model developed by Michael L. Crawford which states that: Crawford (2001) suggests using contextual learning strategies through REACT: Relating, Experiencing, Applying, Cooperating, and Transferring (Crawford, 2001).…”

“…While at the stage of Transferring Transferring is the use of knowledge in a new context. Transfering also means connecting what students have learned or what students already know in context (Sastri et al, 2018).…”

Pengembangan Lembar Kegiatan Peserta Didik Berbasis REACT Materi SPLDV

“…Strategi REACT juga dapat diterapkan dalam pembelajaran untuk mengembangkan kemampuan representasi, penalaran dan disposisi matematis yang melibatkan peran siswa secara aktif (Sari & Darhim, 2020). Bernilai valid untuk dapat meningkatkan kemampuan komunikasi siswa (Sastri et al, 2018).…”