THE DEVELOPMENT OF A SUPPLEMENTARY MEDIA FOR TEACHING NUMERIC VALUES AND NUMBERS TO ENHANCE THE ABILITY OF STUDENTS WITH INTELLECTUAL DISABILITIES UTTARADIT SPECIAL EDUCATION CENTER

Abstract

This research aimed to: 1) create and determine the quality of a lesson application on numeric values and numbers for students with intellectual disabilities; and 2) compare the learning achievement of students before and after using the lesson application. The experimental group consisted of 12 students with intellectual disabilities from Uttaradit Special Education Center. The instruments used in the experiment included: 1) a lesson application on numeric values and numbers using the ADDIE Model for students with intellectual disabilities and a learning plan on numeric values and numbers; and 2) data collection instruments, including a lesson application quality checklist and a learning achievement test. Data were analyzed by evaluating the effectiveness of the lesson application according to E1/E2 criteria, and using mean, standard deviation, and t-test statistics.               

The results showed that:

1) the efficiency of the lesson application according to the E1/E2 criteria was 88.33/94.56, which was higher than the specified standard (E1/E2 was 80/80), and

2) the learning achievement of students before and after using the lesson application had mean scores of 12.58 and 26.83 points, with standard deviations of 2.61 and 1.75, respectively. The comparison of learning achievement showed that students’ post-learning scores were significantly higher than their pre-learning scores at the .05 level of statistical significance.