Composer to 10

When operating at the Composer to 10 developmental level, the child:

Knows number combinations to totals of 10. Quickly names parts of any whole, or the whole given parts. Doubles to 20.

Activities

You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • "9 and 9 is 18."
  • Shown 10, then 7 are secretly hidden and the remaining 3 are shown, a child quickly says “7 are hidden.”

Help your student become a(n) Composer to 10

Distributed practice is key to achieving fluency. This means frequent but brief practice with activities that promote meaningful knowledge of all combinations up to totals of 10. Like most composing number levels, they use visual models (conceptual subitizing) and thinking strategies. For example, children understand the ideas of "add (or subtract) zero" (same number) and "add (or subtract) 1" (next or previous number). They also use commutativity (if I know 8 + 2, I know 2 + 8) and associativity (7 + 9 + 1  is 7 + (9 + 1) is 7 + 10 is 17).  Activities do not use timed tests and drill without understanding. Group related facts. Choose number combinations that connect to/relate to specific related strategies (+/- 1 or 2; +/- 9 or 10). Ask students to notice patterns they see. Connect addition and subtraction. 

 

Special Thanks To

The research reported here was supported by the above funding agencies.
Any opinions expressed are those of the authors and do not represent the views of the agencies.