There are many ideas for helping students visualize volumes of solids by revolution, but seniors love to play with Play-Doh‼ This resource includes how to use Play-Doh to discover the formulas for Volumes of Revolution by Disks and Washers as well as how I incorporate the discovery in my lesson and the examples I use. Depending on how much time I have left in the year, I can teach disks and washers in the same 55 minute class or teach them individually on two different days.
My students encounter this concept in our calculus textbook in Ch. 7 on Applications of Integration thus the numbering 7-2. Hope this is helpful. Enjoy!
Other labs related to Applications of Integration:
Volume by Cross Section Cake Lab
Volume by Disk Hershey Kiss Lab
Foldable related to Applications of Integration:
Calculus Foldable 7-1: Volumes of Solids
Volume by Revolution Play-Doh Discovery © 2018 by Fan’s Math