This product contains number puzzles for the numbers 11-20. Each puzzle contains a piece that has the numeral, a picture showing base ten blocks (tens and ones), and a piece showing the numeral using tally marks. To differentiate this activity, there is an additional piece that can be used that contains the number word. All puzzles are created using the same puzzle design
This product can be used during math centers or small group instruction. To use this product, students will assemble a puzzle containing the different ways to represent each number from 11-20. The number word pieces can be used for differentiation.
Common Core Standards:
1.NBT.B.2: Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases.
1.NBT.B.2.A: 10 can be thought of as a bundle of ten ones — called a "ten."
1.NBT.B.2.B: The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
K.NBT.A.1: Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.