Prime Mathematics

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Chapter 15: Addition and Subtraction Within 40

Lesson 1: Addition and Subtraction Without Regrouping

Lesson 2: Addition and Subtraction With Regrouping

Lesson 3: Adding Three Numbers

Lesson 4: Problem Solving

Chapter 16: Halves and Quarters

Lesson 1: Halves and Quarters

Lesson 2: Problem Solving

 

Chapter 17: Calendar and Time

Lesson 1: Reading a Calendar

Lesson 2: Telling Time

Chapter 18: Numbers to 100

Lesson 1: Tens and Ones

Lesson 2: Order of Numbers

Chapter 19: Addition and Subtraction Within 100

Lesson 1: Addition and Subtraction Without Regrouping

Lesson 2: Addition and Subtraction With Regrouping

Lesson 3: Problem Solving

Chapter 20: Money

Lesson 1: Notes and Coins

Lesson 2: Shopping

Lesson 3: Problem Solving

Chapter 11: Mass

Lesson 1: Comparing Mass

Lesson 2: Measuring Mass

Lesson 3: Problem Solving

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Chapter 12: Comparing Numbers

Lesson 1: Comparing Numbers

Lesson 2: Comparison by Subtraction

Lesson 3: Problem Solving

Chapter 13: Graphs

Lesson 1: Tally Charts

Lesson 2: Picture Graphs

Chapter 14: Numbers to 40

Lesson 1: Counting and Comparing

Lesson 2: Tens and Ones