Assess what your students already know; you may be able to move quickly through this material if you feel that your class is...

Teaching Guidance 16-19

- make connections to prior studies of reflection, propagation and refraction - exploit the simple idea of being"in-step" -...

Teaching Guidance 14-16

To avoid unwanted vibrations, ripple tanks should be set up on the floor. Each tank should be filled to a depth of about 5-6...

Teaching Guidance 14-16