Cogito
Grade 2 Math · Chapter 7 · Lesson 6
Picture Graphs
One picture stands for one thing.
10 problems · about 11 minutes · 2.MD.D.10
What this lesson teaches
The child reads and builds a picture graph with up to four categories.
- A picture graph uses one picture for each thing.
- All the columns start on the same line.
- You can ask how many, how many in all, and how many more.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
3 problemsReview — Money Problems: Pay 75¢ for a 55¢ item. What is the change?
Answer 20
Why The change is 20¢.
Review — Dollars and Cents: How many quarters make one dollar?
Answer 4
Why 4 quarters is $1.
Review — Counting Mixed Coins: 2 quarters and 3 dimes. How many cents?
Answer 80
Why 50 + 30 = 80¢.
Warm Up
Straightforward practice. Get the method working first.
3 problems5 apples and 8 fish. How many more fish?
Answer 3
Why There are 3 more fish.
On a picture graph, what does one picture stand for?
Answer One thing.
Why Each picture is one thing, so counting them gives the amount.
6 fish and 2 stars. How many in all?
Answer 8
Why 6 + 2.
Build It Up
The same ideas with more to keep track of.
1 problem6 fish and 2 stars. How many more fish?
Answer 4
Why 6 − 2.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
3 problems3 apples, 3 stars, 3 fish. How many in all?
Answer 9
Why Three groups of 3.
Reading the Graph: A graph shows 4 apples and 7 fish. How many more fish than apples?
Answer 3 more
Why 7 − 4 = 3.
Adding It Up: A graph shows 5 apples, 3 stars and 6 fish. How many in all?
Answer 14 things
Why 5 + 3 + 6 = 14.