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Data & Patterns I

Reading a pictograph

A row of pictures shows the trees planted. One picture is one tree. What if a picture were worth more?

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Then each picture means more trees.

A pictograph shows counts with pictures, like the tree row. Its key tells what one picture is worth.

An empty row, no key yet.
Step 1 of 4
  1. An empty row, no key yet.
  2. Key: 1 picture = 1 tree.
  3. Five pictures appear in the row.
  4. 5 pictures = 5 trees.

Read the key first, then count the pictures.

So the key matters: the same four pictures give 4 or 20.

The same four pictures, read with two different keys
KeyCountTotal
1 picture = 1 tree4 pictures4 × 1 = 4 trees
1 picture = 5 trees4 pictures4 × 5 = 20 trees

Jump to lesson

This track

  1. 0 Start here
  2. 1 What is data?
  3. 2 Data comes in kinds
  4. 3 Sorting data into groups
  5. 4 Tallying: from a pile to a count
  6. 5 Reading a pictograph
  7. 6 Reading a bar chart
  8. 7 The big picture
  9. 8 Track quiz

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