← Back to Session 3

Session 3 Study Guide: How Many? Let's Count!

Data Science for Young Minds — Grade 1

Key Topics

TopicDetails
Counting objects accurately by touching Counting objects accurately by touching each one
Using tally marks to keep track of countUsing tally marks to keep track of counts
Recording counts in a simple tableRecording counts in a simple table
Answering 'how many?' questions using daAnswering 'how many?' questions using data

Lesson Summaries

Lesson 1: Counting With Care

Learn to count objects carefully by touching each one. One touch, one count.

Lesson 2: Tally Marks

Learn to use tally marks — the quickest way to count things as you go. Every 5th mark crosses the group!

Lesson 3: Recording Your Counts

Write down your counts in a simple table: group name and number. Your first data table!

Lesson 4: The Question: How Many?

Practice answering 'how many?' questions using your counts. 'How many red ones? How many big ones?'

Review Questions

  1. What is the best way to count objects so you do not miss any?
  2. What do tally marks look like for the number 7?
  3. Why do we cross every 5th tally mark?
  4. What is a data table?
  5. If your tally marks show IIII II, how many is that?
  6. Why do we write down our counts?
  7. 'How many blue buttons are there?' is an example of a...
  8. You counted 8 red, 5 blue, and 5 green. Which two groups are equal?