The study examined the effect of prior knowledge of instructional objectives on students' achievement in selected difficult concepts in senior secondary school physics. A total of 100 senior secondary two (SS II) physics students were involved in the study. A non-randomized pretest-posttest control group design was used. From the findings, it was determined that students' prior knowledge of instructional objectives facilitates achievement on difficult concepts in physics. Generally, prior knowledge of behavioural objectives was found to be more effective in enhancing students' achievement on difficult concepts than prior knowledge of general objectives. Also, the results showed that male students achieved higher than female students given the same condition of exposure to prior knowledge of instructional objectives of physics difficult concept. Among others, it was recommended that physics teachers should introduce their lesson objectives in behavioural terms before the learning tasks begin at the instance of teaching the concept of electricity in senior secondary school physics.
This study investigated the facilitating effect of models, realia and charts on students' attitude in teaching the concept of heat energy in Nigerian senior secondary school Physics. A total of 183 senior secondary two (SS2) Physics students constituted the sample. This study adopted quasi-experimental design in 4 coeducational secondary schools in Ife South Local Government Area of Osun State, Nigeria. Physics Attitude Scale (PAS) was used to collect the data and the coefficient of internal consistency for PAS was 0.85 using Cronbach alpha. The data collected were analyzed using Analysis of Covariance. The results showed that models were the most effective in facilitating students' attitude towards leaning Physics. This was then followed by realia while charts were found to be the least effective in facilitating students' attitude towards Physics learning. The results also showed an insignificant gender difference in the attitude of students towards Physics when taught with models, realia and charts. The results also indicated that the facilitating effect of instructional materials on students' attitude towards Physics is not the same at all levels of gender. It is recommended that charts should be used together with models/realia materials for the main lesson, revision and reference purposes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.