Grade 4 is doing a unit called Out of Africa. In IPC lab we are doing some investigations about archeology and evolution. Last week we tested life with and without opposable thumbs. Students completed a number of tasks with their hands and then tried the same tasks with their thumbs taped to their hands. We also talked about other adaptations in our skeleton such as how the shape and tilt of our pelvis allows us to walk upright and use our hands for tasks. We will look at the shape of human skulls in our next lesson. 
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