Development of Mathematics Learning Activities by Using the Flipped Classroom Together with Interactive Video Learning Application on Topic Trigonometric Ratios of Matthayom Suksa 3 Students

The purposes of this research are: (1) to development of Mathematics learning activities by using the flipped classroom together with interactive video learning application on topic Trigonometric ratios of Matthayom Suksa 3 (Grade 9) students; (2) to explore the quality of Mathematics lesson plan by using the flipped classroom together with interactive video learning applications on topic Trigonometric ratios of Matthayom Suksa 3 students; (3) to explore the quality of interactive video learning applications on topic Trigonometric ratios of Matthayom Suksa 3 students; (4) to compare the learning achievement before and after study Mathematics learning activities by using the flipped classroom together with interactive video learning applications on topic Trigonometric ratios of Matthayom Suksa 3 students; and, (5) to study the satisfaction of Mathematics learning activities by using the flipped classroom together with interactive video learning applications on topic Trigonometric ratios of Matthayom Suksa 3 students. The samples consisted of 36 students in Mathayom Suksa 3 in first semester of academic year 2022 of Rattanakosinsomphod Bangkhunthian School, Bangkok, were selected using the sample random sampling. The research instruments included 1) lesson plans, 2) interactive video learning applications, 3) quality assessment form of lesson plans, 4) quality assessment form of interactive video learning applications, 5) Mathematics achievement test, and 6) students' learning activities satisfaction questionnaire. Mean, standard deviation and dependent-samples t-test were used in data analysis. The results indicated that

(1) the flipped classroom consisted of two parts: 1) out-of-class learning self-studying through interactive video learning applications, and 2) in-class learning through activities-based learning and scenario-based learning. (2) The overall results of evaluation in lesson plans was very good level. (𝑥̅ = 4.71, S.D. = 0.14)

(3) The overall results of evaluation in interactive video learning application was very good level. (𝑥̅ =

4.90, S.D. = 0.15) (4) The achievement in Mathematics learning activities after attending the learning activities was higher than before with a statistical significance level of .05. (5) Overall satisfaction was highest level (𝑥̅ = 4.57, S.D. = 0.61).