Day 97: Checking validity of predictions

This is one step that I realized is important when doing Barbie Bungee.  So I made that a step before we dropped their Barbies (tomorrow).  My suggested strategy is laying it on the ground and testing it to measure the distant however they came up with other methods to check the validity.  After they checked it a little they went back and made changes to their group's prediction.  Some students were very focused on making sure rubber bands were "pre-stretched" before they attached them.  To finalize everything I made them pull all the information together on one page (first picture) and this will be part of the assessment for this activity (in addition to the reflection after their final barbie drops).



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