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Fractions: Stage 4 – 5 AC -EA. Honor Ronowicz [email protected]. Introducing fractions. What activities do you do when you introduce fractions to your students?. Equal sharing activities . Conveys the idea of parts to a whole. Proportional reasoning activities - PowerPoint PPT Presentation
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Introducing fractions
What activities do you do whenyou introduce fractions to your students?
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Equal sharing activities • Conveys the idea of parts to a whole.
Proportional reasoning activities• Its about relative size
Measurement Activities• Fractions are numbers with magnitudes
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Measurement Activities• Use fraction tiles to measure around the class.• Measure the students feet cuts outs with
Cuisenaire rods• Make gingerbread men and measure them• Emphasize that the size of the object is defined by
the size of the original unit (tile,rod)
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Top and Bottom Numbers
What does the bottom number in a fraction tell us?What does the top number in a fraction tell us?
The top number countsThe bottom number tells what is being counted A shorthand symbol for how many of what? ½
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You have 12 jelly beans to place evenly on the cake. If you get a ¼ of the cake how many jelly beans do you get?
Equal sharing activities
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• Moving Stage 4-5• Advanced Counters to Early Additive• Level 1- level 2• Counters to adders
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Play time!
• Finding Fractions• Double and half• Double somersaults• Find a fourth• Flipping fractions• Shark attack• And others
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Books!• The Great Divide
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Proportional reasoning
• Bigger and smaller activities• Balancing a see saw.
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The Key Ideas
• Language• Relate equipment/models to symbol• Sharing measuring and proportional reasoning• Add/sub strategies link to Fractions.• Use lots of equipment. • Allow explorations, investigations and
discussions. • Don’t rush to teaching rules!
