CCSS.Math.Content.5.MD.A

CCSS.Math.Content.5.MD.A is a cluster heading. These are the individual standards under it.

• CCSS.Math.Content.5.MD.A.1

  Convert among different-sized standard measurement units within a given measurement system (e.g., convert 5 cm to 0.05 m), and use these conversions in solving ...

01

What Students Need to Do

Students use unit relationships, such as 12 inches in a foot or 1,000 milliliters in a liter, to rename measurements. They choose multiplication or division and solve multistep problems without mixing customary and metric systems.

02

What Mastery Looks Like

A student can convert between related units and explain why the numerical value gets larger or smaller. They use correct units and apply conversions accurately in multistep problems.

03

Common Misconceptions

Students often multiply when converting to a larger unit, or divide when converting to a smaller unit. They may mix metric and customary units or use the wrong conversion factor. In multistep problems, they may convert only one quantity before comparing values.

04

How to Assess It

Exit ticket: A container holds 3 liters of juice. How many 750-milliliter bottles can it fill? Show the conversion and calculation.

1. 01

   Set up a measurement station with liter bottles, milliliter cups, rulers, and meter sticks, then have students record equivalent measurements.

2. 02

   Ask students to explain why 4.5 meters becomes 450 centimeters and how they know whether to multiply or divide.

3. 03

   Play Conversion Match with cards showing measurements and equivalent forms, such as 3 kilograms and 3,000 grams.

4. 04

   Have students plan drinks for 24 people using 2-liter bottles and 250-milliliter servings, then calculate how many bottles to buy.

• CCSS.Math.Content.4.MD.A

  Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit.

• CCSS.Math.Content.2.MD.A

  Measure and estimate lengths in standard units.

• CCSS.Math.Content.6.RP.A.3d

  Use ratio reasoning to convert measurement units; manipulate and transform units appropriately when multiplying or dividing quantities.