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Discovering Decimals

by Sarah Haver
Srhaver@cox.net

Grade Level: 4-6 Content Area: Math
Students will learn about and work with decimals to the thousandths using their handhelds. They will read a web page, show they knowledge in an animation and finally test their knowledge in a game.

Downloads
Sketchy Bubble Blasters
FlingIt Decimals Web Page

Lesson Goals

    • Students will learn what decimals are.
    • Students will learn that decimals have place values just like whole numbers.
    • Students will compare decimals based on their place value.
    • Students will complete an animation and game to apply their knowledge.

    Procedures

    1. Install FlingIt on student handhelds. Fling each student the web site: http://www.tpub.com/math1/6.htm
    2. Have students read the site information on their own or in groups.
    3. Have a short discussion about what they learned from the web site, or what they already knew before reading.
    4. Students will have discovered or relearned that decimals have place values. Lead a discussion of why place values of decimals might be important. Bring up sports and the fact that sometimes the winner of a game only wins by a few tenths of a second.
    5. Have the class list the ways that we use decimals and why they might be important.
    6. From this list, students chose a way that we use decimals or why they might be important and put it in an animation using Sketchy.
    7. Students will share these with the class.
    8. Beam students Bubble Blasters.
    9. Show them that we are comparing decimals, and discuss that in seeing which number is bigger when using decimals, it's good to think in terms of pizza or money.
    10. Students need to keep playing until they hyave reached 93% accuracy.
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