Write and evaluate numerical expressions involving whole-number exponents.
Write, read, and evaluate expressions in which letters stand for numbers.
- Write expressions that record operations with numbers and with letters standing for numbers.
- Identify parts of an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity.
- Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole -number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations).
Students are successful when they can…
- understand the meaning of exponents and exponential notation
- use appropriate terminology to explain how to evaluate an expression.
- evaluate numerical expressions containing exponents.
- discover that any base to the zero power is 1.
- recognize that variables represent unknown quantities.
- translate verbal expressions into numerical expressions and numerical expressions into verbal expressions.
- communicate orally and/or in writing about translating and evaluating variable expressions using precise mathematical language, including the vocabulary variables, coefficients, constant, and term.
- evaluate expressions for given values of variables using the order of operations when appropriate.