Grade 6: Investigating and Understanding Ratios (CCSSM Version)

Concepts

• Investigate and Understand Part:Part and Part:Whole Ratios
• Investigate and Understand Rates and Measurement Conversions

Unit includes

• 14 high-level tasks with associated QuickStarts, Practices, Applications, and Quick Writes.
• 2 checkpoints and 4 support activities.
• 1 final performance-based assessment with scoring guide.

Students

• Develop the understanding that ratios are a comparison of two quantities in a multiplicative relationship.
• Recognize the difference between part:part and part:whole ratios.
• Determine if the information they are provided is a part:part or a part:whole ratio.
• Develop and use strategies for scaling ratios, including use of tables and tape diagrams.
• Recognize and manipulate percents as part:whole ratios.
• Understand that percents are always in relation to a whole of 100%.
• Develop an understanding of rates.
• Analyze and use tables and double number lines to identify the units of measure being compared in a rate.
• Explore, represent, and solve constant price per item situations, problems of constant speed, and measurement conversion problems.