## Real-Life Ratios and Rates

This lesson will assist students in understanding the concepts of ratio and rate. Use of the concept learned and process on how to set up rates and ratios. The instructor will write the lesson purpose and objectives on the board.

Students will demonstrate their understanding of the concept of a ratio by using ratio language to describe relationships between quantities.

Ratio and rate is important because it will give students the knowledge of utilizing the concepts learned in real life. Some of the tasks students will be able to perform by understanding these concepts are: solve geometric problems, measuring problems, calculate recipes, calculate driving distances and cost, etc… Students will be able to use this at work when mixing ingredients to meet specified requirements of things like spices, batter, explosives, and chemicals.

A prerequisite to this lesson is understanding rational numbers. The opening conversation will reveal how each student could use these skills in real-life situations. For example: What is the unit cost of one soda from a case? What is the distance between two locations on a map with a 1 inch scale? How many miles per gallon does your car average?

#### GED Content Areas

Number and Ratios

## Real-Life Proportions

This lesson will assist students in understanding proportions. Use of ratios and rates from the previous lesson will be continued in the set up and use of proportions. Students will demonstrate their understanding of proportion by using ratio reasoning.

The use of proportions is important because it will give students knowledge of utlilizing the concepts learned in real-life. Some of the tasks students will be able to perform are solving geometric and measurment problems, calculate recipes, driving distances, and costs. Students will be able to use proportional reasoning at work and home.

Prerequisites for this lesson are understanding ratios and rate from the previous lesson. Also, students need to have a good understanding of mulitplication.

#### GED Content Areas

Number and Ratios

Algebra and Functions