A Study of Grade 9 Students’ Probabilistic Thinking and Mathematics Achievement in a Mathematics Problem-Based Learning Classroom

Abstract

This research was conducted to 1) study probabilistic thinking and 2) study learning achievement of Mattayom 3 students (9^th grade) according to problem-based learning approach. The target group of this research was a group of 33 students studying in Mattayom 3 (9^th grade) at Sarapeepittayakom School in the academic year 2019. The instruments used in this research were 1) 8 problem-based-learning lesson plans, 2) students’ individual and teamwork assignments, 3) students’ reflection forms, 4) teaching records, 5) probabilistic thinking evaluation forms and 6) students’ learning achievement test. This research was concluded using descriptive statistics and descriptive analysis. The result of this research revealed that students had probabilistic thinking ability at good and very good levels according to the probabilistic thinking conceptual framework (Jones, 1997). Additionally, there were25 students (75.75%) who were able to pass expected school evaluation criteria score at 60 percent.