Part 1: Lesson Description
Recipes & Ratios: Mobile Learning Exercise
Proportional relationships are everywhere. They are used to compare professional athletes and to help shoppers get the “best bang for their buck” at the grocery store. They help us build models and designs and are used in many business applications. This lesson plan introduces proportional relationships, ratios and unit rates at the grade 6/7 (C) level and requires adult learners to identify and compare ratios using the Padlet application.
Learner Audience / Primary Users
This lesson is intended for adult learners with minimal English language competence who are interested in learning math in a useful context through a mobile device.
- Curriculum / Instruction
- Instructional material
- Mobile application
- Designers for Learning
- Adult Education
- Proportional Relationships
- Unit Rates
- Problem-based Learning
- Gathering Information
Time Required for Lesson
Key skills covered in this lesson include:
- Identifying and comparing ratios
- Problem-solving using proportional relationships
By the end of this lesson, the learner should be able to:
- Identify ratios and briefly describe the concept of a ratio using an example, e.g., a ratio of 3:4 means that for every 3 of one thing, there is 4 of another (CCR, 6.RP.1)
- Identify unit rates a/b can be associated with a ratio a:b with b ≠ 0 (CCR, 6.RP.2)
- Use proportional relationships to solve simple real-world problems (CCR, 6.RP.3).
College & Career Readiness Standards (CCRS) Alignment
- Level: Adult Education
- Grade Level: C (Math)
- Subject: CCRS Mathematics
- Domain:Ratios and Proportional Relationships
- Standard Description: “Understand ratio concepts and use ratio reasoning to solve problems.” (CCRS 6.RP), specifically: “Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities.” (6.RP.1); “Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, “This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is 3/4 cup of flour for each cup of sugar.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.”21” (6.RP.2); and, “Solve unit rate problems including those involving unit pricing and constant speed. For example, if it took 7 hours to mow 4 lawns, then at that rate, how many lawns could be mowed in 35 hours? At what rate were lawns being mowed?” (6.RP.3b)
Learners should have basic English and numeracy skills.
Mobile device (smartphone or tablet) and internet access
Lesson Authors & License
- Mobile Learning Remix Author: Amanda Weber
- Special thanks to Carolyn Wilson for developing the original "Recipes and Ratios" lesson
- License: Creative Commons CC BY 4.0 license
Part 2: Lesson
Instructional Strategies and Activities
1. Warm-Up and Introduction
Instructor sends email to students.
Time: 1 minute
'Ratio Brainstorm: Where and when they you used or seen ratios being used in the “real-world”? Can you think of some examples? Check out these pictures that introduces Ratios, Unit Rates and the language of proportions by highlighting different “real-world” situations where ratios are used.'
Examples of ratios used in sports
Examples of ratios in art
Examples of ratios in business
2. Presentation / Modeling / Demonstration
Instructor sends email to students.
Time: 6 minutes
'Here is a link to a presentation that teaches you to identify and compare ratios. Take a few minutes to review the information before we complete our exercise. If you need an app to open the file, the Prezi app is available for free from the App store (www.apple.com/appstore). Adobe Flash Player will also open the presentation.'
Instructor sends an email to students.
Time: 8 minutes
'Now that you have more experience in identifying and comparing ratios, go to the Padlet site and follow the instructions on the screen. Your answers will be reviewed by the instructor and you will receive private feedback via email.'
Instructor emails feedback to each student.
Key Terms and Concepts
Part 3: Supplementary Resources & References
Recipes and Ratios - Original
Photo content created by Carolyn Wilson. Her slides were remixed to still photos.
Prezi content created by Amanda Weber.