Children will select matching pairs from a group of objects. Then, given a cube model of a subtraction problem, students will write a number sentence to represent the equation with support. Numbers in the task are 7 or less
A. Solve subtraction problems (5 or less objects)
B. Solve more subtraction problems (5 or less objects). Rephrase subtraction as "taking away."
C. Solve subtraction problems (5 or less objects) phrased as "taking away."
D. Learn about the meanings of the minus and equals signs
E. Identify minus and plus signs
F. Rewrite word problems as subtraction equations
G. Solve word problems and number sentences involving subtraction within 5
H. Solve subtraction problems within 5 using picture models for support
I. Match number sentences to associated word problems
J. Match linking cubes to a set of objects
K. Represent subtraction problems with linking cubes. Write number sentences to match models
L. Use models to complete subtraction number sentences within 5
M. Solve subtraction equations with and without using linking cube models
N. Solve expressions involving subtraction of numbers less than 5
O. More practice solving subtraction equations within 5
P. Solving subtraction problems using greater numbers (6 or less)
Q. Solve subtraction problems with greater numbers (6 or less) using linking cubes for support
R. Create number sentences to represent word problems involving subtraction (7 or less)
S. More practice making number sentences representing subtraction of 7 or less objects
T. More practice using cubes to model subtraction problems and create number sentences
U. Select equations that represent a model of subtraction