Mathematics, Grade 1

Unit 1: Number

Counting and skip-counting to 100, subitizing, numbers to 20, place-value ideas, comparing and ordering sets, and first addition and subtraction facts to 20.

• Counting forward and backward by 1s
• Skip-counting by 2s, 5s, and 10s

• Seeing how many at a glance
• Counting on from a number you know
• Counting with groups of 2s, 5s, and 10s

• Showing numbers to 20
• Breaking numbers into two parts
• Making equal groups

• Comparing sets with referents
• Matching sets one to one
• Estimating amounts to 20

• One more, two more, one less, two less
• Talking about adding and taking away
• Making and solving math stories
• Showing and writing addition and subtraction
• Strategies for adding facts to 18
• Using addition to subtract

Unit 2: Patterns and Relations

Repeating patterns, translating patterns from one form to another, and the equal sign as a balance.

• Describing and extending repeating patterns
• Copying and creating patterns
• Showing a pattern a different way

• Balance and imbalance
• Writing equalities with the equal sign

Unit 3: Shape and Space

Measurement as comparing, sorting 2-D shapes and 3-D objects, building composite shapes, and finding 2-D shapes in 3-D objects.

• Comparing and ordering by an attribute
• Comparing by filling, covering, and matching

• Sorting shapes and objects
• Building shapes from smaller shapes
• Finding flat shapes on solid objects