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Operating on Fractions with a Visual Model: No Algorithms Required! - PowerPoint PPT Presentation


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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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Presentation Transcript
slide1

RSS

Mini Conference

2013-2014

Candyce Tracy

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

outcomes
Outcomes
  • Learn something NEW…….. preferably about fractions.
  • Leave curious about what the new standards expect in terms of fractions instruction.
missing understanding
Missing Understanding
  • Unitizing
  • Partitioning and Iterating
unitizing
Unitizing

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

adding fractions
Adding Fractions

I wonder what fraction combinations you can use to equal 1 whole?

2/3?

Record your equations

adding fractions1
Adding Fractions

½ + ⅓ =

⅙ + ⅔ =

⅚ + ½ =

adding fractions2
Adding Fractions

½ + ¼ =

¼ + ⅜ =

subtracting fractions
Subtracting Fractions

Roll your dice and model using clock

slide19

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?

slide20

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?

slide21

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?

slide22

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?

slide24

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?

slide26

Reflection of Session

Please use an index card

  • Something I learned
  • A Question I still have
  • How can I better facilitate your learning?