Creating a System Construction of Mathematics Learning Diagnostic test on Material 4: Algebra to Solve the Problems with Equation for Prathomsuksa 6 Students

Abstract

            This research aims to 1) develop a diagnostic tests for defects in Mathematics Lesson 4 problem solving with equations for Prathomsuksa 6 2) find the quality of diagnostic tests for defects in Mathematics Lesson 4 problem solving with equations for Prathomsuksa 6 3) to analysis students aware of their own shortcomings after taking a diagnostic tests for defects in Mathematics Lesson 4 problem solving with equations for Prathomsuksa 6. The sample is Prathomsuksa 6/1 Public School Songkran Railway Education Office. The research instruments consisted of 1) the 32-point diagnostic test IOC, 2) the debugging test system, 4) defects diagnostic test in mathematics algebra learning 4 on solving problems with equations for Prathomsuksa 6.

            The research found that 1) diagnostic tests for defects in Mathematics Lesson 4 problem solving with equations for Prathomsuksa 6 students, 10 problem solving questions, 40 questions. 2) The test of the quality of the test has the difficulty of the test from 0.35-0.79. The discriminative power of the test is from 0.20-0.58. The reliability of the test was calculated using the binary regimens 0.9289 and 0.9197. Analyze the results of the students' responses based on the shortcomings of the 4-step problem solving process of the test and the percentage of students who responded to the error as a percentage. 1) Students could understand the 71.02 percent problem. 2) Lack of conversion ability. 3) Students were able to follow the 45.45 percent plan. 4) Students planned to solve the problem 40.06 percent. 6) Wrong way by students to calculate by mathematical action (addition, subtraction, multiplication) other than mathematical action, the problem is set to 36.64. Percentage 7) Students were able to answer 28.69 percent. 8) Substitute incorrect equation. 26.98 percent; 9) wrong calculation; 26.70 percent skepticism; 10) no significant part of the problem; 15.62 percent did not. 11) did not understand the problem of 13.35 percent.