This category, “Place Value,” includes posts with videos, games and activities to help your child practice Place Value.
Goal: To have your child understand that TEEN numbers have TENS and ONES. The Kindergarten goal is to have children understand place value for numbers 0-20, but please feel free to move on if your child has confidently mastered the teens.
Vocabulary: tens, ones, group
Example 1: “17 has a group of TEN and 7 extra ONES.” You have to group 10 ones together to make a 10.
Example 2: “We know that 17 is a group of 10 and 7 extra ones. So we know that 10 + 7 = 17
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.