What Are Expressions?

Shelley·

Mathematics

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At a Glance

SubjectMathematics

This teacher guide provides an overview for a lesson focused on understanding the Order of Operations, where students will learn to apply rules to solve multi-step equations, identify common calculation errors, and effectively communicate their mathematical reasoning. Materials needed for the lesson include scientific calculators, handheld whiteboards, dry-erase markers, and erasers. The lesson includes a Mystery Math Challenge that encourages students to crack a code using numerical expressions, alongside explanations of the significance of correct operations in real-life applications. The guide emphasizes real-world connections and introduces PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) as a vital concept for evaluating numerical expressions correctly. Various engaging activities are suggested, such as an Expression Relay Race and the Pizza Party Challenge, to solidify students' understanding and application of the mathematical concepts.