A model is a larger or smaller representation of something else.
An analogue is comparable to something else
Lesson plan examples of models:
Sedimentary rock layer lesson: http://library.thinkquest.org/J002289/act.html
-- Sedimentary rocks are made in layers. The layers of mud,sand, or even seashells are built up over a long period of time. The layers get squeezed and stuck together to make new rocks. This cookie is made in layers and you can still see the layers even after it is pressed and cooked.
Making fossils: http://www.canteach.ca/elementary/life19.html
-- Students make impressions of leaves, shells, flowers, etc.
Metamorphic rock: Butterfingers, crayons melted together.
Igneous: crystallization, fudge,
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