Order of Operations | Review Lesson
Students review and apply the order of operations in health-related calculations and decision-making scenarios. The lesson emphasizes accuracy, consistency, and practical application in college-level health contexts such as dosage math, calorie calculations, and interpreting formulas.
| Term | Definition |
|---|---|
| Order of operations | The rule for performing mathematical steps in a specific sequence to get the correct answer. |
| Parentheses | Grouping symbols that tell you to do the operations inside them first. |
| Exponents | A number showing repeated multiplication. |
| Multiply/Divide | Operations completed from left to right after parentheses and exponents. |
| Add/Subtract | Operations completed from left to right after multiplication and division. |
| PEMDAS | A memory aid for the order of operations: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction. |
Display 2-3 quick review problems. Model one example aloud, emphasizing each step in the order of operations.
Solve individually, then compare answers with a partner and identify where each step was completed.
Work through several health-related examples, such as calculating total calories from a meal or adjusting a medication-related formula using simplified numbers.
Follow along, answer questions, and annotate each step on their papers.
Distribute practice cards with medium-difficulty problems. Circulate, prompt students to explain their thinking, and correct misconceptions.
Work in pairs to solve problems, justify the order used, and check each other's work.
Provide 2-3 individual review problems for students to complete on their own. Encourage them to show all steps.
Solve independently and flag any step they are unsure about for later clarification.
Review answers, highlight common errors, and reinforce how order affects accuracy in health settings.
Share solutions, ask questions, and revise work as needed.
Ask students to name one rule of the order of operations and one way it helps prevent mistakes in health calculations. End by reinforcing that accuracy in sequencing supports safe and reliable decisions in health contexts.
Complete 5 review problems applying the order of operations to health-related scenarios. Show all steps and circle the final answer.