The aim of this study was the development of demonstration sets to
enhance Thai high-school students’ understanding of Newton’s Laws of Motion
through Interactive Lecture Demonstration (ILD) approach. The demonstration sets
consist of two parts; (1) a simple demonstration set and (2) a complex demonstration
set. The second part applies Electromagnetism for constructing demonstration sets
which have a magnet and a solenoid as the main instruments. This set can help
students clearly observe motion due to force, activate students’ thinking, and attract
students’ interest in Newton’s laws.