Grades 1–5 · fraction suite

Fraction routines that fight whole-number bias

Five smartboard routines built on one idea: a fraction is a number with a size, not two whole numbers stacked up. Magnitude first, improper fractions by default, and never a memorized rule. Fraction Number Line is free; the rest of the suite is DotSense Plus.

Flash Routines

Grades 3–5 · flagship

Fraction Number Line Free

Place fractions on lines that run past one whole. Improper fractions and mixed numbers by default. Number-line magnitude is the most evidence-backed fraction intervention there is.

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Grades 1–3 · roots

Partition & Fair Share Plus

Judge fair vs. unfair parts in a flash, then turn equal-sharing stories into fractions. The K–2 foundation: fractions require equal parts.

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Grades 2–4

Unit Fraction Iterator Plus

Build a target fraction by counting copies of a unit fraction end to end, and watch the count sail right past one whole. The antidote to "fractions can't be bigger than one."

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Grades 3–5 · bias-buster

Fraction Compare Plus

Compare two fractions by magnitude on a shared number line or aligned strips, never by cross-multiplying. Presets target the exact patterns where bias shows up.

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Grades 3–5

Multi-Model Flash Plus

See one fraction as area, length, and set at the same time, and prove all three are the same number, breaking overreliance on the "pizza" model.

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Choral Counting

Grades 2–4

Choral Fraction Counting Plus

Count unit fractions one at a time on a shared number line, halves through eighths, forward or backward, and watch the count sail right past one whole.

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Every routine here is grounded in real research. See why.