Learn that subtracting a number from itself results in a difference of 0 using a number line. They will identify the difference after being prompted to interact with the number line
A. Record a scenario based on objects as a subtraction equation with a difference of 0 (Part 1)
B. Record a number line scenario as a -0 subtraction equation
D. Identify missing numbers in subtraction equations with a difference of 0
E. Subtract by moving an object backward on a number line and solve a related equation that shows subtraction from 3, 4, or 5
F. Record a number line scenario as an equation that shows subtraction from 3, 4, or 5
G. Record a scenario based on objects as a subtraction equation with a difference of 0 (Part 2)
H. Use base-10 blocks to represent subtraction scenarios with objects within 5 and identify base-10 block patterns that represent subtraction scenarios with objects within 5
I. Solve equations based on a model of base-10 blocks to subtract 1 or all but 1
J. Record a model of base-10 blocks as two related equations that show subtraction from 6
K. Record a model of base-10 blocks as two related equations that show subtraction from 7 or 8
L. Subtract by moving an object backward on a number line and solve a related equation that shows subtraction within 7
M. Record a model of base-10 blocks as two related equations that show subtraction from 9 or 10
N. Identify missing numbers in subtraction equations from 9