Grades 2–3
Logic Grid: Lunch Time
Two 3 by 3 logic grids about lunch: who packed which snack, and who drank which drink.
Classroom activity · Logic puzzles and brain teasers
Greater-Than Logic Squares
Four 4 by 4 number puzzles with greater-than and less-than signs between the squares. Each has one answer.
- Grade level
- Grades 4–5
- Time
- About 25 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Logical reasoning, Problem solving, Persistence, Explaining thinking
What kids do
“Write 1, 2, 3 or 4 in each square. Each row and column has each number once, and every < or > sign must be true.”
Printed on the sheet:
- The sign points to the smaller number: 2 < 3 and 4 > 1. Up and down, ∧ means the top number is smaller and ∨ means the top number is bigger.
Teacher tip
Remind kids that the open side of the sign faces the bigger number.
How to use it
- Let kids work with a partner and explain their thinking.
- Start with an easier puzzle before the harder ones.
- Let kids work with a partner so they talk through their thinking.
Watch for
Frustration on hard puzzles. Give one clue at a time as a hint.
Talk about it
- Which clue helped you the most?
- What strategy did you use?
Take it further
Post a puzzle of the week on the board.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More logic puzzles and brain teasers
Grades 2–3
Letter Sudoku Puzzles
Sudoku with the letters A, B, C and D: four 4 by 4 puzzles that each have exactly one answer.
Grades 2–3
What Am I? Riddles
Ten “What am I?” riddles, from a banana to the future. Read them aloud and let the class guess.
Grades 3–4
Logic Grid: Field Day
A 3 by 3 and a 4 by 4 logic grid about field day: ribbons and races, solved one clue at a time.
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