Place Value Lab3-5 · Build a Number
  1. Conjecture
  2. Manipulate
  3. Measure
  4. Explain
  5. Generalize
Ready

This is a simulation, not a quiz. You answer by trying things and watching what happens.

Our question

Can you build a number so every digit's value is visible and explain what changed?

Getting the simulation ready…

  1. 1Build or change something
  2. 2Say what will happen, then run it
  3. 3Finish: say what you found
What counts as evidence
  • Build a Number: predicted what should change before this action: Click 'Ones' to add unit cubes.
  • Build a Number: tested the mission by doing: Click 'Ones' to add unit cubes Then Click 'Tens' to add ten-rods.
  • Build a Number: explained why this observation matters: Yellow unit cubes appear in ones column.
  • Build a Number: revised the strategy after comparing expected observations with what changed on screen.