- Asked which rectangular "candy" is the "same amount" as a bar 4 cm by 5 cm, one child chooses the 4 by 8 matching the sides of the same length. Another child chooses 2 by 7, intuitively summing the side lengths.
- Given square tiles and asked how many fit in a 4 by 5 area, child guesses 15.
- A child places one sheet of paper over the other and says, "This one is bigger."
- Measures area with ruler, measuring a length, then moving the ruler and measuring that length again, apparently treating length as a 2D space-filling attribute.
Help your student become a(n) Area Quantity Recognizer
Covering surfaces and talking about area (e.g., on the playground, "this is a really big area for our game" or ""we covered the whole table with no holes") can be helpful. In discussions, differentiate area from quantities (e.g., "Her block building is tallest, but yours covers more of the rug--that's a big area!").
Quick Shapes: Array
Goldilocks and the Four Areas