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Science (3467 resources)
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Celsius and Fahrenheit Conversions Made Simple

Grade Levels: 3 - 8

Objectives

  • Students will learn to convert Celsius to Fahrenheit (or vice versa).
  • Students will practice their addition, subtraction, and multiplication skills.

    • Materials

  • Pens, paper
  • Calculator (optional)

    • Procedure

    Converting Fahrenheit to Celsius:
    1. Ask students to think of a temperature in Fahrenheit.

    2. Have them add 40 to that number.

    3. Multiply the new number by .55555 (a decimal point followed by five 5s).

    4. Subtract 40.

    See example below:

    32° Fahrenheit = ?° Celsius
    Step #1: 32°F + 40 = 72.
    Step #2: 72 x .55555 = 39.9996 (round to nearest whole number).
    Step #3: 40 - 40 = 0°C.

    Converting Fahrenheit to Celsius:
    1. Ask students to think of a temperature in Celsius.

    2. Have them add 40 to that number.

    3. Multiply the new number by 1.8.

    4. Subtract 40.

    See example below:

    0° Celsius = ?° Fahrenheit
    Step #1: 0°C + 40 = 40.
    Step #2: 40 x 1.8 = 72.
    Step #3: 72 - 40 = 32°F.

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