THE GENIUS
place value · guessing and comparing two-digit numbers
To compare numbers up to 100 [1.NBT.B.3].
THE GENIUS is a Grade 1 number-comparison game where a player wears a hidden two-digit number on their forehead and must infer its value from clues. The other players can compare guesses with the hidden number, helping the student narrow possibilities within 100. The mystery format makes comparison language part of the reasoning process.
Use it in a small group when students are learning to compare two-digit numbers and use greater-than or less-than clues. Encourage students to explain how each clue changes the possible range. Create a free Find a Math Game account to generate teacher-ready lesson support for THE GENIUS. No credit card is required, with 3 lifetime lesson generations.
- Grades:
- 1
- Players:
- 2 or more players
- Materials:
- cards
- Classroom use:
- small group, partner work
Standards alignment
Official Rules
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