Study guide: Count, Compare, Join, and Take Away
Use drawings to explain changes in small groups, with an adult reading aloud.
Ideas to explain in your own words
- Count each object once and find how many there are after adding one.
- Compare two groups by matching each object with one partner.
- Count a total when two small groups are joined.
- Use a drawing to find how many remain after some leave.
Watch your reasoning
- The six stars stay, and one new star joins them. Counting one number after six gives seven: 6 + 1 = 7.
- Four moons can match four stars. Two stars remain without a moon partner, so six stars is more than four moons.
- Both groups count. Three plus four is seven: 3 + 4 = 7. Counting only the new ducks would leave out the first three.
- Cross out three of the eight birds. Five are still on the branch: 8 − 3 = 5. Adding three would tell a different story.
A worked review example
Count a Group and Add One: Four drawn apples and one more apple make five apples: 4 + 1 = 5. Counting all five drawings checks the answer. Match Groups to Find More: Five leaves match three flowers in three pairs. Two leaves have no flower partner: 5 − 3 = 2. There are more leaves, even if the flower drawings are larger. Put Two Groups Together: Two ducks and three ducks make five: 2 + 3 = 5. The count is one, two, three, four, five across both groups. Cross Out and Count What Remains: Six birds with two leaving gives four remaining: 6 − 2 = 4. The drawing shows two crossed-out birds and four uncrossed birds.
Make a practice plan
- Try the supplied lesson problems without looking at the answers.
- Compare your method with the worked examples and explain any correction.
- Use the new review cases, then complete the transfer task on paper or in your own document.