Abstract:
The purposes of this research were (1) to develop a science learning package for the learning unit of Cell for Mattayomsuksa one students towards the effectiveness standard of 80/80 and effectiveness index of 0.50, (2) to study the students achievement in the learning unit of Cell using the learning package, and (3) to study self-directed learning of students towards learning package on the topic of Cell. The samples were 30 Mattayomsuksa one students studying in the second semester of academic year 2014 at Nikhomsangtoneng School. The tools included a learning package on the topic of Cell, learning achievement tests and self-directed learning ability tests. The learning achievement test item difficulties ranged from 0.50 to 0.77 and the item discrimination ranged from 0.27 to 0.53, the reliability value was 0.86 and the reliability value of the self-directed learning ability tests was 0.95. The data was analyzed by using mean, standard deviation and t-test dependent.
The findings of the research were that (1) the effectiveness of the science learning package on the topic Cell were 80.67/80.89 and the effectiveness index was 0.70, (2) the students achievement posttest score was significantly higher than the pretest one at 0.01, and (3) the level of students self-directed learning by using science learning package was high.