Illustrative Mathematics
Illustrative Mathematics: 1.oa \$20 Dot Map
In this lesson plan, 1st graders are given a graphic of a map and are to use addition and subtraction to solve the word problem.
Illustrative Mathematics
Illustrative Mathematics: 1.oa Making a Ten
For this lesson plan, 1st graders are to use a table of sums to explore the relationship between adding and subtracting.