Teaching Science With Lynda: Making a Roller Coaster out of Foam Tubes and Marbles- includes Interactive Notebook Ideas - 2 views
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John Evans on 05 Aug 15"Today I am linking with Teachers Desk 6 Teacher's Desk Six for Throwback Thursday. This is a super inexpensive activity. The foam tubes are about 1.80 for a 7 foot tube and you can slice it in half and have two ramps out of it. The marbles and masking tape are also inexpensive. "