Students will model subtraction problems using a full ten frame and some ones. They will subtract a 1-digit number that crosses 10 to solve for the difference. They will model this by removing the remaining objects and then some items from the ten frame
A. Solve subtraction problems taking from 10
B. Subtract single digits from numbers 11-19 to make 10
C. Subtract the digit in the ones place from numbers 11-19 to make 10
D. Find the unknown number in subtraction problems to make 10
F. Use the strategy of making 10 to solve subtraction equations
G. Introduce subtraction across 10 using base-ten blocks
H. Model subtraction across 10 using base-ten blocks and knowledge of number bonds
I. More practice subtracting across 10 with base-ten blocks
J. Use number bonds to break down components of subtraction equations; use two equations to solve
K. Use number bonds to break down components of subtraction equations; use one equation to solve
L. Solve subtraction equations by using the strategy of making 10
M. Solve subtraction equations that cross 10