M.6.R.RP.1

The first time students name a ratio as its own idea, before they solve with one.

Not yet reviewed by a teacher

Builds on

Where to go for intervention

Grade 5

M.5.Q.NF.5PriorityScaling: thinking about one quantity as a resized version of another.Interpret multiplication as scaling (resizing) by estimating whether a product will be larger or smaller than a given factor based on the size of the other factor, without performing the indicated multiplication.

Grade 4

M.4.R.OA.1Multiplicative comparison ("5 times as many") is the first time students compare two quantities by multiplying rather than subtracting.Interpret a multiplication equation as a comparison, e.g., interpret 35 = 5 × 7 as a statement that 35 is 5 times as many as 7 and 7 times as many as 5. Represent these comparison statements as multiplication equations.M.4.Q.OA.2PrioritySolving multiplicative comparison word problems, the situation ratio language later describes in general.Multiply or divide to efficiently, flexibly, and accurately solve real world word problems involving multiplicative comparison, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem, distinguishing multiplicative comparison from additive comparison.

M.6.R.RP.1

Priority

Explain the concept of a ratio and efficiently, flexibly, and accurately use ratio language to describe a ratio relationship between two quantities.

Common Core: 6.RP.A.1

Resources5 thinking tasks7 IM tasksWIDAOSPI

Thinking tasks5

1 more

Proportional Thinking (Ratios) full lesson · Deborah Harper

From the BTC Curricular Math Task Sheet, shared by Building Thinking Classrooms teachers

Illustrative Mathematics tasks7

3 more

From the Illustrative Mathematics task library, CC BY-NC-SA 4.0

WIDA language connections1

Explain · Expressivespeaking, writing and representing

ELD-MA.6-8.Explain.Expressive · Language for Mathematics, Grades 6-8

Construct mathematical explanations that…

Introduce concept or entity
Share solution with others
Describe data and/or steps to solve problem
State reasoning used to generate solution

OSPI's example connections to the WIDA ELD Standards Framework. How to read these

From OSPI

Washington OER Hub · Free, openly licensed materials for M.6.R.RP.1

On the SBA

PRISM's read

OSPI lists no interim items for this standard alone. Ratio language is still part of the ratio target, so expect to see it inside M.6.R.RP.3 problems.

Smarter Balanced target

Claim 1 (Concepts and Procedures), Target A: Understand ratio concepts and use ratio reasoning to solve problems.

Major work of the grade, DOK 1, 2.

OSPI's interim connections

OSPI lists no interim items for this standard.

Smarter Balanced publishes its claims and targets in its content specifications, written to the Common Core. A 2026 standard reaches them through OSPI's crosswalk. Check them before anything official.

Builds to

Where it goes next

Grade 6

M.6.R.RP.2A unit rate is one particular way of describing a ratio, so the idea of a ratio comes first.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.M.6.R.RP.3PriorityRatio language becomes problem solving with tables, tape diagrams, double number lines and equations.Efficiently, flexibly, and accurately demonstrate understanding of ratio and rate reasoning by solving real-world and mathematical problems, e.g., by reasoning about tables of equivalent ratios, tape diagrams, double number line diagrams, or equations to find different ways to express the same ratio.

Grade 7

M.7.R.RP.2PriorityRecognizing a proportional relationship depends on understanding what a ratio between two quantities is.Recognize and represent proportional relationships between quantities.