Unpacked Content
Knowledge
Students know:
- Vocabulary associated with the four operations to write the symbolic notation of the mathematical expression.
Example: The phrase, "the product of 4 and 3" is written as "4 x 3." - Strategies for evaluating a numerical expression and replace it with an equivalent form.
Example: Given (22 + 16) + 43 can be replaced with 38 + 43 and then further simplified.
Skills
Students are able to:
- Write, explain, and evaluate numerical expressions representing two-step problems in context.
- Evaluate numerical expressions with grouping symbols.
- Translate a numerical expression into words.
- Write a numerical expression given a mathematical expression in words.
Understanding
Students understand that:
- multi-step word problems can be represented by numerical expressions using operations and grouping symbols to indicate order of evaluating them.
Vocabulary
- Expression
- Calculate
- Interpret
- Evaluate
- Compare
- Reasoning
- Grouping symbol
- Parentheses
- Braces
- Brackets
- Commutative property
- Associative property
- Distributive property
