Lesson Learned: Improving Students’ Procedural and Conceptual Knowledge through Physics Instruction with Media of Wave, Sound, and Light

This study aims to enhance students' procedural knowledge in physics instruction focuses on wave, sound and light. Two classes at class XI of SMA N 1 Pakem are involved in the instruction as an experiment and control classes (conventional instruction). Each class consists of 32 students. This instruction is conducted with physics media which is developed to demonstrate phenomena of wave, sound and light. Assessment of procedural knowledge measures students' skill on making of preparation, creating of design, and write down a way of data collecting in order to examine their hypothesis. Data are gathered through test, observation and documentation then analysed to achieve the improvement of skills descriptively with normalized gain. Findings reveal that physics media help students to initiate their skills on proposed the preparation of the experiment, design and determine a procedure to get the evidence. Moreover, students in the experiment class are better than control class in improvement of procedural knowledge. It can be inferred that physics media give more benefits in improving students understanding of wave, sound, and light concept.