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Transparent Algebra
Then we did an activity measuring the weight of pennies to get at the idea of slope and y-intercept. Last year I brought in 8 scales and had each group do it, but that didn't work so well. I think this year's students could probably have handled it better, but I still decided simply to do the measuring myself (figuring my goal wasn't for them to do the measuring, but to think about the mathematics).online learning stuff
This post is part of an ongoing series abridged from the 21st Century Teaching Project (21CTP) - a study of expert professional development trajectories and digital age practice.