This study focused on the development and validation of the enhancement activities for grade 7 science. It was conducted at Morong National High School during the school year 2014-2015 with 50 students per section. Students were taken using stratified random sampling technique and fifteen science experts teaching science served as respondents to determine the acceptability of the developed enhancement activities. The research work used experimental method. Pretest and posttest were utilized to assess the level of performance of the students respondents. Descriptive method was also used to describe and evaluate the acceptability of the developed and validated enhancement activities using the adapted questionnaire checklist about clarity of instructions, design characteristics, aids to instruction and learning activities. The study found out that the developed enhancement activities in science was very effective in teaching different learning areas like cells to organism, plant and animal cells and microscopy. The findings of the study revealed that the group exposed to the developed and validated enhancement activities in science has significantly increase their performance in all learning areas compared to the group which did not use the enhancement activity. All of the mean scores of the control and experimental groups in posttest were higher than the pretest. The experimental group gained more knowledge and perform successful in the topics like cell to organism, plant and animal cell and microscopy after using the developed and validated enhancement activities for grade 7 science. The student in experimental group increased their performance by 68% as compared to the score of the students in the control group. The developed and validated enhancement activities for grade 7 science was evaluated as very much acceptable instructional materials by science experts with respect to clarity of instruction, design characteristics, aids to instruction and learning activities

enhancement activities

science

science education