This download includes 5 worksheets that focus on numbers 11-20. Students will have to identify the number and color to show how many on 2 tens frames. It is a concrete way for students to understand that numbers 11-20 are 10 + some number between 1-10. These worksheets will help with number recognition and the concept of how many for 11-20.
These worksheets help address CCSS.Math.Content.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.
Directions: Look at the number. Color to show how many.
Graphic courtesy of From the Pond http://frompond.blogspot.com