Grade 2 · Number
Fractions: Halves, Thirds, and Quarters
Fractions introduce the idea that numbers live between whole numbers. The most important idea in early fractions is equality of parts: half only means something when the two parts are the same size. A pizza cut unevenly does not give halves. This equality requirement is the deep mathematical fact underlying all fraction work. Note: formal fraction content appears in Grade 3 of the BC curriculum; this topic previews those ideas through concrete fair-sharing contexts.
LESSON VIDEO
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Lesson video
A short walkthrough to play in class or assign for flipped/at-home viewing.
WHAT STUDENTS WILL LEARN
✓Divide a whole into 2, 3, or 4 equal parts
✓Name each part using fraction language: one half, one third, one quarter
✓Recognize that equal parts of a whole must all be the same size
✓Compare fractions with the same denominator: two thirds is greater than one third
✓Connect fractions to fair sharing contexts
BUILDS ON