Common Core
1.OA.C.5
7 lessons teach this standard. Every lesson is interactive, and every one prints as a worksheet with a separate answer key.
Grade 1 Math · Chapter 1 · Lesson 1
Look at dots and know how many, without counting.
Grade 1 Math · Chapter 1 · Lesson 2
See a big group as a full five, plus a little more.
Grade 1 Math · Chapter 1 · Lesson 7
Find one more or one less without recounting.
Grade 1 Math · Chapter 2 · Lesson 1
Join two groups and write what happened.
Grade 1 Math · Chapter 2 · Lesson 2
Start at one number instead of going back to one.
Grade 1 Math · Chapter 2 · Lesson 3
Use a number and a dot card together.
Grade 1 Math · Chapter 3 · Lesson 2
Hop from the part to the whole and count the hops.