ประสิทธิผลของสื่อประสมต่อผลสัมฤทธิ์ทางการเรียนของนักเรียนกลุ่มเสี่ยงด้านคณิตศาสตร์

Abstract

The research for advance on the multimedia of the addition which the sum is not more than twenty that cause 70/70 performance and the addition skill which the sum is not more than twenty for At risk Student’s Achievement In Mathematics by using the multimedia. The teaching process used the multimedia. The sample used in this research were grade 3 student. Choosing a specific style of Trikhamprachapattana school.who couldn’t add and made exercise on the addition which the sum is not more than twenty. The instruments (used in this student) were : Addition box, snake ladder game, Addition video, Addition domino, Couting rainbow, Pre-test,Lesson plan and exercise. Study during the 2nd semester of academic year 2017. Data analyzed by statistics, average and percentage. The results were as follow: Grade Point Average; Pre-test GPA 6.33, which is 33.33%, which is low. Between GPA 73.33 and Post-test GPA 18.33 equal. Effective 73.33 and  91.67, which has a high score. And multimedia for addition  which the sum is not more than twenty, effective 73.33 / 91.67, which helps students to learn effectively.