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Session 1 Study Guide: Sorting by Two Things

Data Science for Young Minds — Grade 2

Key Topics

TopicDetails
Reviewing one-attribute sorting from GraReviewing one-attribute sorting from Grade 1
Sorting by two attributes simultaneouslySorting by two attributes simultaneously
Creating and using a sorting gridCreating and using a sorting grid
Understanding what empty categories meanUnderstanding what empty categories mean

Lesson Summaries

Lesson 1: Review: One-Attribute Sorting

Remember Grade 1? We sorted by color, size, or shape. Let us review and get ready for the next level.

Lesson 2: Two Attributes at Once

What if something is big AND red? Sort objects using two attributes at the same time.

Lesson 3: Making a Sorting Grid

Create a grid with one attribute on each side. Place objects in the right square. See all combinations!

Lesson 4: Empty Squares and Surprises

Some grid squares might be empty. That is data too! What does an empty square tell us?

Review Questions

  1. In Grade 1, we sorted by ONE thing at a time. Now in Grade 2, we sort by...
  2. If you sort by size AND color, 'big red' things go in which group?
  3. What is a sorting grid?
  4. If your grid has 3 colors and 2 sizes, how many squares does it have?
  5. An empty square in your grid means...
  6. Why is two-attribute sorting harder than one-attribute?
  7. Sort these by color AND shape: red circle, blue square, red square, blue circle. How many groups?
  8. What is an 'attribute'?