Abstract:
The purpose of this study were : 1) to construct a Soud Slide-Multivistion in Science onthe topic "Reproduction" for Mathayom Suksa II students 2) to find the efficiency of this constructed Sound Slide-Multivision based on the standard criterial 80/80 and 3) to study learning progress of the students who learned by using the Sound Slide-Multivision.The sample for the study, by cluster random sampling was composed of one class of Mathoyom Suksa II students who were studying in the first semester of academic year 1991 at Cholkunyanukul Secondary School, Amphur Muang, Cholburi Province. The amount of tive spent in the experiment was 4 periods, with 50 minutes in eash period. The data were analyzed by the percentage, the mean and the t-test.The findings of the study revealed the efficiency of the constructed Sound Slide-Multivisin to be 80.30/95.33 based on the standard criteria 80/80 which satisfied the hypotheses.Using t-test to determine the students learning progress, it was found out that the post-test scores were over fifty percent higher than the pre-test scores ; the difference was statistically significant at the level of .01.