Effects of Teaching Chemistry through Concept Formation Teaching Model on Students' Achievement

The study was aimed to investigate the effectiveness of concept formation teaching model over traditional method on Class IX students' achievement. It was an experimental study in which concept formation teaching model was compared with traditional method. For experiment, sample size was 290. One hundred and forty three students in experimental groups and one hundred and forty seven students in the controlled groups were selected because the classes were taken "as is". Pre-test-Post-test Nonequivalent- Groups Design was used. Experimental groups were taught through concept formation teaching model and controlled groups were taught through traditional method for three months. Pre-test and post-test were administered to experimental and controlled groups at the beginning and end of the experiment. 31 lesson plans were made on the format of direct instruction from chapter No. 7 to 10 of Chemistry textbook for Class IX published by Punjab Textbook Board. To determine the effects of teaching Chemistry through concept formation teaching model on achievement of Class IX students in the subject of Chemistry, the significance