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Pier Builders: Level the Fraction Bridge
Created by Argraide
Updated October 27th, 2026
At a glance
- Staff pick
- Picked by the Argraide team
- Play mode
- 📱 Solo
- Format
- 🧊 3D
- Length
- ⏱ About 20 minutes
- Subject
- Math
- Grade
- 5
- Curriculum
- Ontario
- Curriculum codes
- B1.3B1.4
About this activity
A 3D river canyon where students build bridge piers from coloured fraction blocks (a whole block is one storey; halves to twelfths are slices of it). They pick a block size, dial how many, the crane stacks them, then they lower the road: level piers let the truck cross, a short pier tips the deck, a tall one cracks it, and a ramp built out of order dips.
What students learn
- Represent equivalent fractions from halves to twelfths by building the same height from different block sizes (B1.3)
- Represent improper fractions and mixed numbers as stacked heights past one storey, with or without whole blocks (B1.3)
- Compare and order fractions with unlike denominators, including improper fractions and mixed numbers, by building a ramp that rises from lowest to highest (B1.4)
- See that a fraction with bigger numbers is not always a bigger amount (4/8 = 1/2, 5/8 < 3/4)
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