Return to Unit List Grade 1 Unit 1: Data and Numbers   Exploring Data Animal Tally   Crossword Puzzle   Identification Lesson 1: Hands On Sort with Venn Diagrams Lesson 2: Hands On Tally Charts Lesson 3: Hands On Picture Graphs Lesson 4: Problem Solving Skill: Reading for Math Chapter 1 Writing for Math   Number Sense Animal Count   Crossword Puzzle   Identification Lesson 1: Numbers to 10 Lesson 2: Explore Zero Lesson 3: Hands On Numbers to 20 Lesson 4: Problem Solving Strategy: Make a Table   Number Relationships Compare Numbers   Crossword Puzzle Lesson 1: Numbers to 31 Lesson 2: Hands On Compare Numbers Lesson 3: Hands On Greater Than and Less Than Lesson 4: Order Numbers to 31 Lesson 5: Ordinal Numbers Lesson 6: Problem Solving Skill: Reading for Math Chapter 3 Writing for Math   Exploring Addition and Subtraction Adding and Subtracting   Crossword Puzzle Lesson 1: Hands On Number Stories Lesson 2: Algebra Addition Sentences Lesson 3: Algebra Subtraction Sentences Lesson 4: Problem Solving Strategy: Draw a Picture Fun at the Beach!