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Common Core State Standards Addressed:
•7.G.3: Describe the two-dimensional figures that result from slicing three-dimensional figures, as in plane sections of right rectangular prisms and right rectangular pyramids.
This lesson is an investigation (with lots of visual aspects) into 3D- cross sections. The students will discover various cross sections through exploration and then fill out a lab report and create a poster. This includes a grading rubric, partner evaluations, and the lab itself.
•Knowledge of the various 3 dimensional figures (enough to create them with Play-Doh).
•One Container of Play-Doh (or clay) per group.
•Material to cut the Play-Doh (Depending on what your district allows, Play-Doh knives, plastic knives, a ruler; being that it is Play-Doh, pretty much anything will cut it!)
1.Give each student a lab.
2.Explain the procedures. If they are using plastic/ Play-Doh knives I make sure they know I have a Zero-Tolerance policy for fooling around with the plastic knives which will result in a 0 and a write up.
3.Explain that they will be graded by participation (40%), the lab write-up (20%), and poster (40%). The grading is up to you, but I tell them 20% of the participation is graded by myself during class, and the other 20% is by their peers and that they will not get to see what their peers said, so be honest.
4.Determine how many days you gives them to work (I usually do two to three, since it is a discovery based lesson).