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Operating on Fractions with a Visual Model: No Algorithms Required!

RSS Mini Conference 2013-2014 Candyce Tracy. Operating on Fractions with a Visual Model: No Algorithms Required!. Outcomes. Learn something NEW…….. preferably about fractions. Leave curious about what the new standards expect in terms of fractions instruction. Missing Understanding.

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Operating on Fractions with a Visual Model: No Algorithms Required!

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  1. RSS Mini Conference 2013-2014 Candyce Tracy Operating on Fractions with a Visual Model: No Algorithms Required!

  2. Outcomes • Learn something NEW…….. preferably about fractions. • Leave curious about what the new standards expect in terms of fractions instruction.

  3. Missing Understanding • Unitizing • Partitioning and Iterating

  4. Unitizing Is the ability to identity subgroups within groups – for fractions- unitizing helps to see fractional parts and equivalent fraction

  5. Partitioning

  6. Iterating

  7. Equivalence

  8. Adding Fractions I wonder what fraction combinations you can use to equal 1 whole? 2/3? Record your equations

  9. Adding Fractions ½ + ⅓ = ⅙ + ⅔ = ⅚ + ½ =

  10. Adding Fractions ½ + ¼ = ¼ + ⅜ =

  11. 5/6 + 5/12 =

  12. Subtracting Fractions Roll your dice and model using clock

  13. Solve: ½ + ¼ =

  14. Solve: ¼ + ⅗ =

  15. Mitch owns ¾ of a section of farmland, and he’s going to plant potatoes on ½ of the land. What fraction of a section will be planted with Mitch’s potatoes?

  16. Alicia owns ¾ of a section of land. She plants pumpkins on 2/3 or her land. What fraction of the entire section is planted with pumpkins?

  17. Yumiko owns 5/6 of a section of land. She plants peanuts on 2/3 of her land? What fraction of the entire section is planted with Yumiko’s peanuts?

  18. Talisha is making cakes for Field Day. She has 6 cups of flour, and needs 2 cups to make 1 cake. How many cakes can she make?

  19. Division situations can often be categorized as on of two types of problems • Sharing • Grouping

  20. Alex’s dad made a pan of brownies and there was 1/3 of the brownies left. After school, Alex and his friend equally shared what was left. What fraction of the whole pan of brownies did each person eat?

  21. 2 ⅓ ÷ ⅚ =

  22. Reflection of Session Please use an index card • Something I learned • A Question I still have • How can I better facilitate your learning?

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