Can we use mirrors to change the direction of the light?
Will the light go through the acetate?
Is the light still travelling in a straight line?
We haven’t yet figured out how to disprove the statement.

Peggy Angus Class had to investigate the statement: Does light travel in straight lines?

They were able to show light does travel in straight lines but needed some hints on what to do to disprove the statement. They enjoyed the challenge and there was animated discussion when they found they could reflect or deflect the light using mirrors.