Developing Learning Activities using Activity Based Learning with Math Talk Moves Techniques for Enhancing Mathematical Communication Skills in Probability of 9th Grade Students

Abstract

The objectives of this research were to 1) investigate activity based learning (ABL) and Math Talk Moves lesson activities, refining lesson plans based on reflection participants' feedback for subsequent cycles to enhance lesson plans, and 2) explore the mathematical communication skills of Grade 9 students. The study was conducted in the second semester of the 2566 academic year, involving 30 students from a district school in Phichit province, Thailand. Research tools included: 1) three lesson plans on probability, 2) three subjective mathematical communication writing tests, 3) a student behavior observation form, and 4) an ABL learning activity reflection form. Data were analyzed using content analysis. The trustworthiness of the data was verified using triangulation, incorporating statistical methods such as mean, standard deviation, and t-test for dependent samples. The research found that effective practices such as 1) reviewing prior knowledge and assessing student readiness, 2) utilizing problem situations related to real-world contexts, 3) encouraging group collaboration, 4) presenting and discussing of results, and 5) employing worksheets or practice exercises for assessment. A study on the mathematical communication skills of 9th grade students revealed that students demonstrated higher scores in communication skills through speaking and writing when comparing three implementation cycles, with a statistical significance of .05.