I-CANyons Parent Toolkit for Kindergarten Mathematics
Numbers and Operations and Base Ten: I CAN...
Standard
Make or break apart numbers from 11-19 into tens and ones
|
Core Standard
K.NBT 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 (e.g., 18=10+8); understand that these numbers are composed of ten ones, and one, two, three, four, five, six, seven, eight, or nine ones.
|
In Other Words
The child makes or breaks apart numbers from 11-19 into tens and ones. For example: 18 can be broken into 1 group of 10 and 8 ones.
|
If Mastered
Once child can effectively work with composing and decomposing numbers
from 11-19 into ten ones and some further ones - using objects, then
have child work on writing it in an equation.
For example, give child 18 black beans. Using a Ten-Frame have the child put one bean in each spot. They will see they have a group of 10 and 8 more. Then they can write the addition sentence to match the beans, 10 + 8 = 18. |
If Not Yet Mastered
Math Activities - Click Here K.NBT1 *Dots and Numeral Cards (11-20) *Cubes on the Ten Frame *Teens on the Ten Frame *Teens on Ten Frame, books 1 and 2 *Tens and Ones with Unifix Cubes |
