Idea 5of 22Builds onA graph needs a title and labels
A pictograph's key counts for many
How many does one picture stand for?
Today you'll discover
- what a pictograph's key says
- how to read a half picture
- how to turn a row into a number
Think firstEach book picture stands for 10 books
How many books were borrowed on Wednesday?
Decide first, then press Next. Read the key at the bottom before counting.
A pictograph of library books borrowed this week: rows of book pictures for Monday to Thursday, with a key at the bottom, one book picture equals 10 books. Wednesday's row has 4 pictures; Tuesday's has 2 and a half, the half ringed and labelled half of 10 = 5. Then each row's total: 30, 25, 40 and 15. The last step shows apples eaten at snack, each apple picture equal to 4.
See the whole ideathe big idea and the key word, in one place
The big idea
In a pictograph, each picture stands for the number the key gives.
Easy to get wrongCheck the key before counting. With 1 picture = 10, four pictures mean 40 books, not 4.
Choosing a keyPick a key that keeps rows short. For 40 books, 1 picture = 10 needs 4 pictures; 1 picture = 1 would need 40.
Key words
- pictograph
- a graph that shows amounts with rows of small pictures
- key
- the line on a pictograph that says how many each picture stands for
Ready to use it?
- Read a pictograph using its key.
- Choose a key for a pictograph.