Fractions Flashcards

1
Q

What are the models used to teach fractions?

A
  • area model
  • length model
  • set model
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2
Q

When are fractions first introduced in the FP?

A

Grade 2

(term 2 and 3 gets introduced typically)

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3
Q

Fractions

A

Parts of a whole

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4
Q

Concepts related to fractions learners must understand by the end of primary school

A
  • Equal parts and fair sharing
  • Numbers of parts have special names (e.g. quarters, halves)
  • If the number of fractional parts increases, the size of each part becomes smaller
  • Denominator
  • Equivalent fractions
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5
Q

Denominator

A

The number by which the whole was divided to form the fractional parts

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6
Q

Equivalent fractions

A

Different ways to refer to the same amount

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7
Q

What can be used to teach the length model?

A
  • Fraction wall
  • Cuisenaire rods
  • Strips of paper
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8
Q

What can be used to teach the area model?

A
  • Folded paper
  • Real-life objects such as pizzas, sandwiches, cakes
  • clay
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9
Q

Which model is most difficult for learners to use? Why?

A

Set models

It is more complex to think of collections as part of a whole or a larger collection

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10
Q

What should teachers do when introducing fractions?

A
  • Use fractional language before introducing symbols
  • provide learners with many opportunities to practice sharing
  • constantly refer back to the whole and number of divisions
  • count in fractions
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11
Q

Is it necessary for FP learners to know the terminology “numerator” and “denominator”?

A

No

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12
Q

How could one explain the numerator and denominator to learners in the FP?

A

The top number shows how many pieces/parts there are

The bottom number shows the size of the whole/how many pieces make up the whole

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13
Q

What is another name for the area model?

A

Regional model

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14
Q

Why do learners struggle with fractions?

A
  • Lack sufficient experience in fair sharing
  • Lack sufficient concrete experience in handling parts of a whole
  • 1st time thinking about values between 0 and 1
  • the vocabulary of fractions is not familiar/used often
  • fractions are taught too early without opportunities for concrete conceptualization
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15
Q

What is the suggested approach for teaching fractions?

A
  1. Practise sharing wholes into equal and non-equal parts
  2. Introduce fraction names for different parts (names before symbols!)
  3. Practise finding equivalent fractions
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16
Q

The way we write fractions is called a…

A

Common convention

17
Q

When can fraction symbols be introduced?

A

When learners have become fluent in partitioning and naming fractions

18
Q

Why should more than one area model be used?

A

If one model is overused, learners tend to think they can only share that model

19
Q

What experience do learners come with when learning about fractions? How does this influence the starting point?

A

Learners are familiar with sharing objects between people. Leftovers if there are any should be further divided

20
Q

What confusions might learners have with fractions?

A
  • difficulty adding fractions (adds both the numerators and denominators)
  • difficulty reading fractions
  • assuming a fraction name refers to a specific shape
21
Q

Why should one avoid using the language “two over three” etc?

A
  • Results in miscalculations
  • Does not allow learners to understand the size of fractions or compare them accurately
22
Q

Why might the learner make the mistake of adding both the numerator and denominator?

A
  • insufficient experience counting in fractions
  • moved too quickly to using fractional symbols before using the language
23
Q

How could a teacher help a child to correct the mistake of adding both the numerator and denominator?

A
  • counting in fractions with the child
  • providing fraction bars/circles for the learner to shade when adding
  • encouraging the child to read the problem aloud (e.g. two eighths add three eighths)
  • modeland use correct fractional language
24
Q

How can teachers avoid a learner misunderstanding a fraction name as referring only to a certain shape?

A
  • expose learners to many different fractional models
  • give learners experience partitioning many different shapes not only circles, squares or rectangles