As an introduction to our unit on surface area and volume of solids, my students investigated cross-sections of solids through a Play-Doh Cross Sections lab activity. Materials: play-doh, paper plates, dental floss, plastic knife, and ruler.
A great math activity idea that revolves around using Play-Doh to help students learn about solid cross-sections. I've always had a hard time visualizing these types of things, and I wish my teachers had used this lesson idea! I can't wait to try it!
The consideration of cord length is very important in a bungee jump—too short, and the jumper doesn’t get much of a thrill; too long, and ouch! In this lesson, students model a bungee jump using a Barbie® doll and rubber bands. The distance to which the doll will fall is directly proportional to the number of rubber bands, so this context is used to examine linear functions.
This is a great activity that we did in my AP Statistics class in high school but which can be used in lower level math classes as well. Barbie bungee jumping!
This site seeks for teachers to enroll in its courses, but this is
a page of interactives that are free to use for educational purposes.
It also usually has "warm ups" for learning about the applet and "sample
activities."