
by Kathy Richardson
Topic: Combining and Separating Tens and Ones
Goal: To determine if a child can add and subtract from twodigit numbers by mentally breaking numbers apart and reorganizing them into tens and leftovers, and to determine how the child solves problems presented symbolically.
Critical Learning Phases:
 Tells how many needed to make the next 10
 Combines numbers by reorganizing them into tens and leftovers when necessary
 Breaks apart tens when necessary and reorganizes what is left into tens and leftovers
