develop the content of the science curriculum in the preparatory stage in the light of the energy standards and to use an improve module based on the Leach and Scott model to develop conceptual understanding

Search target Present to developing the content of the science curriculum in the preparatory stage in the light of energy standards and using a unit from the developed curriculum in developing conceptual understanding . their number is (58) male and female students, . The research materials and tools were educational materials, and they were represented in a developed framework for the content of the preparatory stage science curriculum (from the first to the third grade) in the light of energy standards, and the student's handbook from the developed framework for the content of the science curriculum The preparatory stage using the Leach and Scott model for the second grade preparatory students, the developed unit teacher's guide, and measurement tool, including the concept understanding test,. and the research followed the mixed research method, where the descriptive approach was used in preparing a list of energy standards and indicators for the content of the science curriculum in the stage preparatory school, and the developed framework for the content of the middle school science curriculum using the Leach and Scott model, to development conceptual understanding for pupil unit in energy for second year preparatory students using the Leach and Scott model, The research tools were applied test understanding The conceptual energy unit developed for the students of the second preparatory grade at the levels of on the pre and post research group. The research reached to effectiveness of the developed unit in the energy modeled according to the Leach and Scott model i