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Session 4 Study Guide: Building Bar Graphs

Data Science for Young Minds — Grade 2

Key Topics

TopicDetails
Understanding what bar graphs showUnderstanding what bar graphs show
Building physical bar graphs with blocksBuilding physical bar graphs with blocks
Drawing bar graphs on paperDrawing bar graphs on paper
Adding titles, labels, and number scalesAdding titles, labels, and number scales

Lesson Summaries

Lesson 1: What Is a Bar Graph?

A bar graph uses bars to show how many. Taller bar = bigger number. Learn to read simple bar graphs.

Lesson 2: Building With Blocks

Stack blocks to make a real 3D bar graph! Each block = one count. Watch your data grow upward.

Lesson 3: Bar Graphs on Paper

Draw a bar graph on paper or poster board. Use colored strips or colored squares for each bar.

Lesson 4: Labels, Titles, and Numbers

A good bar graph needs a title, labels on each bar, and numbers on the side. Add them to yours!

Review Questions

  1. In a bar graph, a taller bar means...
  2. Why are bar graphs useful?
  3. What does a bar graph need at the bottom?
  4. If you use blocks and stack 5 for dogs and 3 for cats, which tower is taller?
  5. What goes on the left side (vertical axis) of a bar graph?
  6. A bar graph without a title is...
  7. You survey favorite pets and get: Dog=8, Cat=6, Fish=2, Bird=4. Which bar should be tallest?
  8. What is the difference between a pictograph and a bar graph?