Learning Goal
Write simple expressions that record calculations with numbers
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
**5.OA.A.2**: Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 x (8 + 7). Recognize that 3 x (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
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5.OA.A.2: Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation "add 8 and 7, then multiply by 2" as 2 x (8 + 7). Recognize that 3 x (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
What you'll learn
- Translate a verbal description of a calculation into a numerical expression using appropriate grouping symbols (parentheses, brackets, braces)
- Identify the operation words in a verbal description (e.g., "add," "multiply," "the sum of," "the product of") and map each to its corresponding mathematical symbol
- Write an expression that matches a multi-step verbal calculation, placing grouping symbols to preserve the intended order of operations
- Interpret the meaning of a given numerical expression in words without evaluating it
- Compare two numerical expressions and describe the relationship between them without computing (e.g., "this expression is four times as large as that one")
- Recognize that expressions with the same numbers but different structures represent different calculations and therefore different values
Slides
Step through the lesson, or watch it as a narrated video
Writing and interpreting numerical expressions
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