Young's Double-Slit Experiment Single Slit Double Slits Interference Diffraction Grating Sheet Optical Physical Experiment Kit Optics Elements

This is a very useful laser pointer optics kit to demonstrate single and double slit diffraction.The slide and screen holders are easy to use and are quite stable.The red laser produces an oval dot that is fairly bright. The build quality is adequate so it should survive a semester of supervised science labs in an elementary school.What the kit really needs is an instruction booklet in large type with lots of diagrams simple enough for an elementary school student to understand.The company should consider including a couple of diffraction gratings to make the course a bit more interesting and challenging.Metrologic and Edmund Scientific (to name a couple of great American companies) put out truly excellent scientific kits. Laserland could easily produce similar instructions (with attributions would be courteous!)

There are no instruction included in the package. So how do I make use of this?