The Development of Mathematical–Solving and Analytical Thinking Abilities Using Constructivist Theory with Think-Talk-Write Technique for Grade 9 Students

Abstract

              This research aimed to 1) develop grade 9 students’ mathematical problem-solving and analytical thinking abilities using constructivist theory with Think-Talk-Write technique so that the students’ average score of mathematical problem-solving and critical thinking were not less than 80% and the number
of students who passed the criteria was not less than 80% of all students. The target group consisted
of 24 students studying in grade 9 (Matthayom 3/4) at Princess Chulabhorn Science High School Loei.
The research design was three cycles used in Action Research. The research instruments categorized into
3 categories were: 1) experimental tools, including 12 lesson plans using constructivist theory with Think-Talk-Write technique, 2) reflection tools, including (1) a teacher’s teaching behavior observation forms
(2) students’ learning behavior observation forms (3) Students interview forms about learning management  (4) Result recording form after learning management  (5) A test on the students’ learning mathematical problem-solving  ability at the end of cycle (6) A test on the students’ critical thinking at the end of circuit, and 3) assessment tools, including (1) a 6-question subject test on the students’ mathematical problem-solving ability (2) a 6-question subject test on the students’ critical thinking ability.

  Results of the study were as follows: 1) The average score of students’ mathematics problem-solving was at 25.78 or 85.92% of the total score, and there were 20 students or 83.33% passed the criteria which was higher than defined criteria. 2) The average score of students’ critical thinking ability was at 25.88 or 86.25% of total score, and there were 21 students or 87.50% passed the criteria which was higher than defined criteria.