Piggy Fraction
Pour, split, and stack unit fills to build fraction intuition
Download Piggy FractionUnlock Your Learning Advantage
Select your preferred practice bonus and start exploring fractions visually
Fill Lab Starter Pack
- Unlimited pot fills and wall adjustments
- Access to halves through twelfths
- Direct manipulation liquid controls
Full Fraction Workspace
- All benches unlocked: Fill, Mirror, Operate, Compare, Jars
- 64-story problem bank with scaffolds
- Worksheet Studio with export
Story Problem Bundle
- Grade 3-5 word problems with hints
- Pizza, ribbon, snacks, and coin contexts
- Show/hide answer key functionality
Educational bonuses are included with app download. VoiceOver and Dynamic Type support enabled. No account required for offline use.
How the Pot System Works
Transform abstract fractions into concrete visual understanding through direct manipulation
Visual Fraction Builder
Piggy Fraction replaces number symbols with fillable pots. Drag the lid up or down to adjust liquid levels, creating any fraction from halves to twelfths. Each pot displays vertical walls dividing the container into equal sections, making denominators visible as physical divisions.
Tap a wall to snap-fill to that exact fraction, or use stepper controls for precise numerator and denominator adjustment. The Fill Lab lets you pour fractions freely, building muscle memory for what three-fourths or five-eighths actually looks like as a filled container.
Unlike static worksheets, these pots respond to your touch. Pull a jar from the tower to convert improper fractions into mixed numbers. Stack jars back to see how two-and-one-third becomes seven-thirds. The visual transformation happens instantly, connecting abstract notation to physical quantity.
Verified Specifications
Core Learning Workspaces
Five specialized benches guide students from basic fills to complex operations
Fill Lab Controls
Adjust liquid levels with drag gestures or steppers. Select from twelve denomination presets. Watch the pot fill from halves through twelfths as you build numerator and denominator understanding through direct manipulation.
Mirror Bench Equivalents
Place two pots side-by-side to discover equivalent fractions visually. Lock pairs like one-half and two-fourths when their liquid levels match. Build an on-pot checklist of equivalent relationships you've confirmed.
Operations Workspace
Add, subtract, multiply, or divide fractions using three-pot layouts. The result pot shows the combined or reduced fill automatically. Common denominator walls appear when needed, making invisible arithmetic steps visible.
Compare Arena
Load two fractions and visually determine which holds more liquid. The honey band indicator shows the exact difference when pots are converted to common denominators. Choose less-than, equal-to, or greater-than buttons to validate.
Whole Jars Workshop
Convert improper fractions to mixed numbers by pulling whole jars from the tower. Stack jars back to create improper fractions. Count jar icons plus remainder fill to read mixed numbers as concrete quantities.
Story Problem Bank
Solve 64 real-world word problems about pizza slices, ribbon lengths, and coin collections. Toggle scaffold hints on or off. Show or hide the worked pot to check your mental math against visual confirmation.
Interaction Methods and Tools
Multiple input modes support different learning styles and accessibility needs
Touch and Control Options
- Drag pot lids vertically to adjust fill levels with continuous feedback
- Tap wall divisions to snap-fill instantly to unit fractions
- Use increment and decrement steppers for precise numerator control
- Adjust wall count with dedicated steppers to change denominators
- Select operation modes via large button targets: Add, Subtract, Multiply, Divide
- Lock equivalent pairs on Mirror Bench with confirmation buttons
- Pull or stack whole jars using labeled action controls
Educational Scaffolding Features
- Automatic simplification displays reduced fractions alongside originals
- Mixed number conversion shows whole-plus-remainder format
- Honey band visualization reveals fraction differences in common denominators
- Numbered scaffold steps break story problems into guided sequences
- Answer key toggle lets students check work without permanent visibility
- Undo functionality supports experimentation without penalty
- Worksheet Studio generates printable practice sheets for offline work
About the Educational Design
Piggy Fraction translates elementary and middle school fraction curricula into a manipulative-first environment. By representing fractions as filled containers rather than abstract symbols, the app builds spatial reasoning alongside numerical understanding. The pot metaphor remains consistent across all five benches, allowing students to transfer visual intuition from basic fills to complex operations.
VoiceOver support and Dynamic Type compatibility ensure students with visual impairments can access the same learning progression. High-contrast burgundy fills against cream backgrounds provide clear distinction. Large touch targets accommodate fine motor challenges. The offline-capable design supports classroom iPad carts and home practice without network dependency.
Begin Building Fraction Fluency
Install the full workspace with all benches, story problems, and worksheet tools
Download Piggy FractioniOS platform • Version 1.1 • Works offline • No account required • VoiceOver compatible