Pip's Chocolate Forge — Build Fractions

Grade 3·3.NF.A.1

Help Pip the fox fill each chocolate order: pick the unit-piece by its SIZE (no labels to read) and forge it the right number of times. A fraction like 3/4 is three copies of the one-fourth piece — built, not read. Common Core 3.NF.A.1.

About this activity

Pip the fox takes a chocolate order like three fourths, then the child picks the unit piece by its size — there are no labels to read — and forges it the right number of times along the bar. Rounds cover halves, thirds, fourths, sixths, and eighths, including 3/4, 2/3, 3/8, and 5/6. It's a free, interactive Grade 3 fractions activity that runs in the browser on any device, with nothing to install and no account.

The big idea is that a fraction is built from copies of a unit fraction: 3/4 is three of the one-fourth pieces. Because the molds are shown by size, not labeled, the child has to judge which piece fits the whole bar the right number of times — one round even offers an unequal mold to reject, and another asks the same 3/4 on a bigger bar to show the share looks larger when the whole is larger. There are also 'name the unit' rounds where the bar is already split and the child picks the fraction for one part.

It is aligned to Common Core 3.NF.A.1 — understanding a fraction 1/b as one part of a whole split into b equal parts, and a/b as a parts of size 1/b. No timer, no score — just calm, playful practice.

What's inside this activity

  • Designed for Grade 3 learners (ages about 8–9)
  • Common Core strand: Number & Operations—Fractions
  • Aligned to Common Core standard 3.NF.A.1

How to play

Read Pip's order, like 'Forge three fourths.'

Pick the piece whose size fits the bar the right number of times.

Forge it that many times to fill the order; try again freely, with no timer and no score.

What your child practices

  • Choosing a unit-fraction piece by its size, with no labels to lean on
  • Building a fraction as repeated copies of the unit piece — 3/4 as three fourths
  • Telling equal partitions from unequal ones, and rejecting the unfair mold
  • Seeing that the same fraction of a bigger whole is a bigger amount

Learning goals

Understand a/b as a copies of the unit fraction 1/b — the focus of Common Core 3.NF.A.1

Connect the denominator to the size of the equal part and the numerator to how many

Build the part-by-part meaning of fractions that comparing and equivalence rely on

Frequently asked questions

What does the Pip's Chocolate Forge — Build Fractions activity teach?
Pip's Chocolate Forge — Build Fractions is a free interactive activity for Grade 3, focused on Number & Operations—Fractions. Children play it right in the browser — no printing, login, or setup required.
Is Pip's Chocolate Forge — Build Fractions free to use?
Yes. Pip's Chocolate Forge — Build Fractions is completely free, with no signup and no paywall, on any tablet, laptop, or classroom whiteboard.
Which ages is this activity for?
It is designed for Grade 3 (Number & Operations—Fractions) and works well for whole-class, small-group, or independent practice.