A simple lesson to teach Younger ( and with some adaptaion older) students a little about light and to make a pretty cool laser maze ( be careful!!)
Full lesson plan is here to give to students and you will need to collect some items before the lesson.
I have used this and made it work but it taks a little trial and error!
A cup of tea
My resources are free but if they are useful then im always happy to accept the price of a cup of tea if you used them or you liked them!