Math Example: Language of Math--Numerical Expressions--Multiplication--Example 29

Topic

Numerical Expressions

Description

This example illustrates the conversion of the phrase "Eight groups of negative nine" into a numerical expression. The solution demonstrates that "groups of" indicates multiplication, with the resulting expression being -9 * 8. This example emphasizes the importance of recognizing verbal cues that signify mathematical operations.

Numerical expressions form the foundation of algebraic thinking and advanced mathematics. By learning to translate verbal statements into mathematical notation, students develop the skills necessary for more complex problem-solving. This collection of examples provides a comprehensive look at various ways multiplication can be expressed in words and symbols.

Presenting students with multiple worked examples is a powerful teaching strategy. It allows learners to identify patterns, understand variations, and develop an intuitive grasp of the underlying concepts. By seeing how different verbal phrases translate into similar numerical expressions, students can build a robust mental model of multiplication and its various representations.

Teacher Script: "Let's examine this example together. We have the phrase 'Eight groups of negative nine.' What do you think 'groups of' means in mathematical terms? How would you approach converting this into a numerical expression? Remember to consider the placement of the negative sign and the order of the numbers. Take a moment to think about how you'd write this, and then we'll discuss your reasoning and the correct approach."

For a complete collection of math examples related to Numerical Expressions click on this link: Math Examples: Numerical Expressions: Multiplication Collection.