Tile it before you multiply
Give kids sticky notes or square tiles and have them cover a rectangle on their desk. Count the rows, count how many in each row, then count them all. After a few shapes, someone will say "Wait, it's just 3 times 5!" Now the formula is theirs, not yours.
Why it works: going from real objects to pictures to symbols is a core recommendation of the U.S. Department of Education's elementary math guide.
Try it withFinding the Area in Square Units WorksheetWorksheetsOpen it →



















