Unit 6 Contents

Each repeating core pattern is called a period on the Place Value Chart.
The bit-skinny-flat group makes up the ones period.
The super bit-super skinny-super flat group makes up the thousands period.
The megabit begins the millions period.

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Each period takes its name from the number that the cube represents in that period. In Lesson 1, you learned that a comma or space is placed between each period to make reading easier. Remember, the comma or space alerts you to say the period name. For instance: 8,765,432 is read as eight million, seven hundred sixty-five thousand, four hundred thirty-two.

Check-In: Questions 12–14

12. Mr. Gupta used these Big Base-Ten Pieces to model a number for his students:
    What number did Mr. Gupta model? Tell why he used the pieces he did by explaining how much each of these pieces represents.
13. Write a number sentence for the number Mr. Gupta showed in Question 12.
14. Shannon started to show Mr. Gupta's number on a number line with base-ten hoppers. Copy and finish Shannon's work.