CCSS Math Standard: 6.G.1

How long would it take to mow a very large lawn with a push-mower?

A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.

Using patterns, students try to deduce where that area formula came from.