Measurement Conversion by Julia Aardal https://padlet.com/educjuliaaardal/1jp0x6a62fljjga0 For students to know the relative sizes of measurement units. Express measurements in a larger unit in terms of a smaller unit. en-us 2025-01-22 16:43:43 UTC 2025-01-22 17:39:30 UTC hello@padlet.com Measurement Conversion educjuliaaardal https://padlet.com/educjuliaaardal/1jp0x6a62fljjga0/wish/3300652772 Subject: Mathematics

Grade: 4th

4.MD.A.1. Know the relative sizes of measurement units within any one system of units. a. Within a single system of measurement, express measurements in a larger unit in terms of a smaller unit. b. Record measurement equivalents in a two-column table.

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  • Begin with a real-life scenario: "Imagine you’re building a doghouse, and you have a board that’s 3 feet long. How many inches is that? Why might it be helpful to know both measurements?"

    • Have students discuss with their neighbors then share out.

    1. Show a ruler and a yardstick and ask, "How do these tools relate to each other?"

    • Have students share.

    1. Ask students to share any times they’ve had to measure something (e.g., baking, building, crafts).

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  • Provide students pair up and provide each group with a ruler, yardstick, and measuring tape.

  • Ask students to measure the same object (e.g., their desk) in two different units: inches and feet.

  • Have students share their results and guide them to notice the relationship between the measurements (e.g., 1 foot = 12 inches).

  • Discuss why smaller units (inches) create larger numbers compared to larger units (feet).

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  • Introduce the concept of converting larger units to smaller units using multiplication. Write an example on the board:

    • "If 1 foot = 12 inches, how many inches are in 3 feet?"

    • Model the equation: 3×12=36

    1. Explain the purpose of two-column tables for recording conversions. Show an example: See above

    2. Have students find the pattern in the table and talk about how it can help with conversions.

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  • Give students a worksheet with measurement problems and a blank two-column table. See attached sheet.

  • Have students work in pairs to complete the problems and fill in the table.

  • Challenge students to find additional patterns in their tables (e.g., doubling, tripling).

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  • Students will solve 3 conversion problems independently and record their answers in a two-column table.

    • See above.

    1. Circulate and provide feedback to ensure understanding.

    2. Exit ticket: Have students write one sentence on the whiteboard explaining why it is useful to know how to convert units of measurement.

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