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A. Patterns
- Recognize, describe, extend, and create patterns.
- Using concrete materials (manipulatives), pictures, rhythms,
& whole numbers
- Descriptions using words and symbols (e.g., "add two"
or "+2")
- Repeating patterns
- Whole number patterns that grow or shrink as a result of repeatedly
adding or subtracting a fixed number (e.g., skip counting forward
or backward)
B. Functions and Relationships
- Use concrete and pictorial models of function machines to explore
the basic concept of a function.
C. Modeling
- Recognize and describe changes over time (e.g., temperature,
height).
- Construct and solve simple open sentences involving addition
or subtraction.
- Result unknown (e.g., 6 - 2 = __ or n = 3 + 5)
- Part unknown (e.g., 3 + c
= 8)
D. Procedures
- Understand and apply (but don't name) the following properties
of addition:
- Commutative (e.g., 5 + 3 = 3 + 5)
- Zero as the identity element (e.g., 7 + 0 = 7)
- Associative (e.g., 7 + 3 + 2 can be found by first adding
either 7 + 3 or 3 + 2)
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