Students practice counting 11-19 objects by giving each object a number before stating the total number of objects. Then, students can choose to count with help or on their own. Different arrangements of the objects provide an extra challenge
A. Count to 2-digit numbers within 20 with or without separating a group of ten objects into a ten-frame
B. View an incomplete number line and put missing 2-digit numbers within 20 in the correct spot
C. Use 10-frames and remaining dots to add and solve for 2-digit numbers within 20
E. Decompose numbers 11-20 using models involving 10-frames
F. Decompose numbers 11-20 without using models
G. Complete number sentences involving numbers 11-20