Abstract:
To 1) study the opinions of panel experts for the appropriate web-based instruction (WBI) blended with cooperative learning in mathematics model; 2) develop web-based instruction blended with cooperative learning in mathematics model; 3) compare students pre and post leaming achievement after learning from web-based instruction blended with cooperative learning in mathematics model; 4) study students' opinion on the web-based instruction blended with cooperative learning in mathematics model. The samples comprised of three groups. The first group consisted of ten experts in mathematics and web-based instruction. The second group consisted of three experts in blended learning. And, the last group consisted of 20 Phathom Suksa Five students from Chulalongkorn University Demonstration School. The results of the research were 1. Web-based instruction blended with cooperative learning in mathematics model comprised of 2 parts (1) Components of the web-based instruction blended with cooperative learning in mathematics model included: learning objectives, instructional activities, types of instruction, interactive method, learners' roles, teacher's roles, computer technology and network, supportive resources on web, and learning evaluation. (2) Steps of the model comprised of: Pre WBI blended learning with cooperative learning model, during WBI blended learning with cooperative learning model, and post WBI blended learning with cooperative learning model. 2. It was found that the subjects learned from WBI blended learning with cooperative learning model had statistically significant at .05 level learning achievement post-test scores higher than pre-test scores. 3. Students showed a high level of satisfaction on the learning model developed.