Number Line & Fraction Lab

Build number lines with hop arrows, and shade, compare and re-shade fractions — no ruler, no eraser.

← Orco Academy

Set up the line

Tap anywhere on the line to add a marker there too. Hop arrows show addition (forwards) and subtraction (backwards) as jumps.

🧰 All grades · Workbench

How “Number Line & Fraction Lab” works

🎓 You are learning to: Build number lines with hop arrows, and shade, compare and re-shade fractions — no ruler, no eraser.

This workbench works in four quick steps:

  1. 🔢 Choose your lab

    Number line, or fraction bars.

  2. ⚙️ Set it up

    Pick the numbers, range or parts you need.

  3. 🖐️ Tap to build

    Mark numbers, add hop arrows, shade fractions — re-do anything in one tap.

  4. 💾 Keep your work

    Download it as a picture or print it.

💡 Nothing here is marked — this is your space to create, change your mind, and try again.

Nothing you do here is saved or sent anywhere — experiment freely. Reopen this guide any time with the ? Help button.