Warm up with a Mystery Math Mistake to build "one more." Hunt for different shapes within a picture. Describe and use attributes of shapes to tell if two shapes are the same. Match everyday objects with their shape.

Warm up with a Mystery Math Mistake to decompose teen numbers. Use a double 10-frame to represent adding three single-digit numbers. Play a game with 10-frame cards to add numbers. The one with the greatest number wins!

Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Measure the length of objects and sides of shapes in inches. Notice and Wonder to compare centimeters and inches. Find objects that are about 1 inch long.