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Lesson · Grade 3 · Mathematics

A Fraction Is Equal Parts of One Whole

  • Grade 3
  • Mathematics
  • 56 s
  • British Columbia
  • BC3-MA-04

A square is cut into 2 equal parts that fold exactly onto each other, so each is one half, while a square cut off centre does not show halves. A strip is cut into 4 equal parts, each one quarter (1 of 4 equal parts), next to a strip of 4 uneven parts that are not quarters, ending on the recap that fractions of a whole use equal parts.

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In one sentence

The question this lesson answers

What is a fraction?

This square is one whole.

Transcript

What the lesson says

What is a fraction?

This square is one whole.

Cut it into 2 equal parts that are the same size.

Each part is one half of the square.

This square has 2 parts, but they are not the same size.

So these parts are not halves.

This strip is one whole too.

Cut it into 4 equal parts.

Each part is one quarter of the strip.

One quarter is one of 4 equal parts.

Four quarters make one whole.

This strip has 4 parts, but they are not the same size.

So these parts are not quarters.

Fractions of a whole use equal parts.

Curriculum

Where this fits

British Columbia, Grade 3

Mathematics, Number: fraction conceptsBC3-MA-04

Previous: Comparing and Ordering Numbers to 1000Next: Writing a Fraction: The Top and Bottom Numbers

The outcomes and strands follow the British Columbia curriculum.

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