Number Sense 1-20

Unit Review Sheet

Facts and Definitions

Lesson 1: Numbers 1-5

• Number: a quantity of objects.
• A number can be shown numerically (2), in word form (two), and symbolically ($$).
• Numbers follow a sequential order.

Lesson 2: Numbers 1-5: Number Bonds

• A number (greater than 1) can be broken into parts.
• Base-10 blocks: blocks that represent numbers.
• Number bond: a picture that shows how the parts of numbers are related to the whole (part-part-whole relationship)

Lesson 3: Numbers 1-5: Ordering and Comparing

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Lesson 4: Numbers 6-10

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Lesson 5: Numbers 6-10: Number Bonds and Making 10

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Lesson 6: Numbers 11-15

• Penny: a coin that is worth one cent
• Nickel: a coin that is worth five cents

Lesson 7: Numbers 16-20

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Lesson 8: Reviewing Numbers 11-20

• Dime: a coin that is worth ten cents

Lesson 9: Ordering and Comparing

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Lesson 10: Patterns and Skip Counting

• Pattern: something that happens in a regular and repeated way and allows us to make predictions about what comes next

Final Project: My Math Game

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