Reflection: Adjustments to Practice How Can the Layers of the Earth be Modeled? - Section 1: Teacher Notes


 Clay or PlayDoh?  When you do this project, you will have to decide if you would like to use clay or PlayDoh.  Both have their advantages:

Clay holds its shape well and will never dry out.  It therefore can be used as a reference in lessons to come.  However, it was a bit tricky to cut in half.  I used a wire strung between a cake cutter.  I bought my clay on  The brand was Claytoons.  It was easier to work with than standard school issued clay.  The colors were also much more vibrant.  It can also be rolled out thin enough for the "crust" layer while staying in one piece. 

PlayDoh is easier to roll and to work with.  It can be cut in half with dental floss.  My biggest problem was the fact that I couldn't find single color packs.  I would have had to buy lots and lots of multi-packs to have enough of the colors I needed.  Also, the model would be dry and cracked making it unusable after one day.

So what will I use next year?  Probably the Claytoons clay.  I will try to figure out a more efficient system for cutting the clay.

  Clay or Play Doh?
  Adjustments to Practice: Clay or Play Doh?
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How Can the Layers of the Earth be Modeled?

Unit 7: Earth's Changes
Lesson 2 of 21

Objective: SWBAT explain how one can use a model to represent an object.

Big Idea: In this lesson, the children will learn about the layers of the Earth and explain how models can be used. Then they will compare two different models.

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11 teachers like this lesson
Science, landscape, volcanoes, mountain, earth, glaciers, Land, Earthquakes
  45 minutes
clay earth model photo
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