EFFECTS OF USING OPEN APPROACH ON MATHEMATICAL PROBLEM SOLVING ABILITY OF LINEAR EQUATIONS IN ONE VARIABLE FOR 7TH GRADE STUDENTS.

Abstract

Open Approach is a child center learning. It will encourage students to have an open thinking and problem solving process, think in various ways, and be creative in finding answers. It can help students develop their thinking process skills and mathematical problem solving ability to their fullest potential. The purpose of this research is to develop the mathematical problem solving ability on the topic Linear Equations in one variable by using an open approach. The target group used in this research was 36 seventh grade section 3 enrolled in semester 2 in academic year 2023, Saohai Wimonwitthayanukul School, Saraburi, Thailand. which are the students the researcher has been assigned to teach. The instrument used to collect data include a lesson plan on Linear equations in one variable using an open approach and a mathematical problem solving ability test on linear equations in one variable. Data analysis was analyzed by frequency, mode, mean and percentage. The data was presented in the form of tables, simple bar chart and multiple bar chart. The research results found that the most students have the mathematical problem solving ability regarding linear equations in one variable. after using open approach is over a very good level, 58 percent.