Use this STEM project during class time or send home for a homework project. A parent letter is included to explain the project and what STEM is. I use this for my first graders, but it can be used for any grade level. Use my guidelines or use the blank ones if you want to create your own guidelines. I have the students come up with a new toy. My guidelines are it has to be 3d, a new toy invention, can not be taller than 24 inches, and must demonstrate one of the following science concepts: sink/float, magnets, light/shadow. They also have to advertise using technology (pictures, ads, recorded commercials, etc.) A blank guideline sheet is included if you want different guidelines.