Cogito
Grade 1 Math · Chapter 6 · Lesson 8
Asking Questions About Data
Read a graph and answer questions from it.
10 problems · about 12 minutes · 1.MD.C.4, 1.OA.A.1
What this lesson teaches
The child answers how-many-in-all, how-many-in-each, and how-many-more questions from a graph.
- A graph can tell you how many in one group.
- It can tell you how many in all.
- It can tell you how many more one group has.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
3 problemsReview — Sorting and Showing Data: A graph shows 4 apples and 6 stars. How many in all?
Answer 10
Why 4 + 6 = 10.
Review — How Much Longer?: A 9-cube stick and a 4-cube stick. How much longer is the first?
Answer 5
Why 9 − 4 = 5.
Review — Why Same-Size Units?: Why must you say which unit you used?
Answer Because a number alone does not say how long.
Why 8 cubes and 8 blocks are different lengths, so the unit matters.
Warm Up
Straightforward practice. Get the method working first.
3 problems5 apples and 2 stars. How many in all?
Answer 7
Why 5 + 2 = 7.
5 apples and 2 stars. How many more apples?
Answer 3
Why 5 − 2 = 3.
7 fish and 3 balls. How many in all?
Answer 10
Why 7 + 3.
Build It Up
The same ideas with more to keep track of.
1 problem7 fish and 3 balls. How many more fish?
Answer 4
Why 7 − 3.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
3 problems4 stars and 4 apples. How many more stars?
Answer 0
Why They are equal.
Reading the Graph: A graph shows 6 fish and 4 balls. How many more fish than balls?
Answer 2 more
Why 6 − 4 = 2.
Adding It Up: A graph shows 3 stars and 5 apples. How many things in all?
Answer 8 things
Why 3 + 5 = 8.