Students use ten-frames to count to 19. Then, students learn that two ten frames are 20. In addition, students practice the numeral 20
A. Count objects and learn the concept of a ten-frame
B. Learn the numbers 10-12 using a ten-frame and additional objects
C. Use cubes and ten-rods to count to 11 and 12
D. Use a number line and practice the numbers 11 and 12
E. Learn the numbers 13, 14, and 15 using ten-frames and remaining objects
F. Count and identify the numbers 13 through 15 using cubes and ten rods
G. Identify numbers on a number line and reinforce knowledge of numerals 1-15
H. Learn the numbers 16, 17, 18, and 19 using ten-frames and remaining objects
J. Use a number line to fill in missing numbers, especially focusing on numbers 10-20
K. Form 2-digit numbers within 20 using ten rods and additional cubes
L. Count to 2-digit numbers within 20 using partially filled ten frames and additional dots