Counting Squares (updated 10,000 grid)

This activity looks at larger place values using Van de Walle's 10,000 Grid. It is an exploration of magnitudes and mystery numbers. It can be a platform for jumping into unitizing or for pushing place value understanding in upper elementary. Van de Walle's Digital Blackline Masters - 10,000 Grid: https://wps.ablongman.com/wps/media/objects/3464/3547873/blackline_masters/BLM_29.pdf

By David Henson