Math Example: Language of Math--Numerical Expressions--Multiplication--Example 38

Topic

Numerical Expressions

Description

This example demonstrates how to convert the phrase "Negative three by negative fourteen" into a numerical expression. The image uses color coding to break down the verbal statement, helping students understand how to translate words into mathematical symbols. This conversion illustrates the process of transforming "by" into multiplication, resulting in the expression -3 * (-14).

Numerical expressions are fundamental in mathematics, bridging the gap between verbal descriptions and mathematical notation. This collection of examples helps teach students how to interpret various phrases indicating multiplication, such as "times," "multiplied by," and "by." By presenting these conversions visually, students can better grasp the connection between language and mathematical operations.

Exposure to multiple worked-out examples is crucial for students to fully understand the concept of numerical expressions. Each example reinforces the pattern recognition skills needed to identify multiplication in verbal statements and translate them accurately into mathematical form. This repetition helps solidify the concept and improves students' ability to apply it in various contexts.

Teacher Script: "Let's look at this example together. When we see the phrase 'Negative three by negative fourteen,' we need to recognize that 'by' means multiplication here. So, we'll convert this to -3 * (-14). Remember, when we multiply two negative numbers, the result is positive. Can you tell me what the final answer would be?"

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