In Erin Bryan’s 5th grade math classroom, TGIF takes on a whole new meaning. Fridays don’t just herald the coming weekend. They’re also game days. “They all come in here on Fridays pumped,” said Bryan ...

Use a variety of representations and strategies add within 1,000. Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use a variety of representations and ...