The initial 10-minute activity, students watch a video from the movie about twing buoyancy force and buoyancy (from YouTube), and after that, the student will receive the situation about the Government's need to create gameplay in the movement of a person or thing in which the flood crisis that experiences the problem by creating a raft to raft, durability with the lowest budget in problem solving.
การแปล กรุณารอสักครู่..
