CRACK THE CODE • GRADE 3

The Secret Rule Machine

Put a number in. Predict what comes out. Can you discover the rule?

INPUT ↓
⚙SECRET RULE
?
OUTPUT ↓
?

What do you predict?

Our evidence

INPUTOUTPUT
Your number pairs will appear here.

Does your rule work for every pair?

Think • Pair • Share

“I think the rule is _____ because _____.”

Compare each input with its output. Test your idea on another pair.

Teacher setup (open before projecting)

Changing the rule starts a fresh table. Close this panel to hide the setup.

Current rule: add 5