Grades 4–5
Tricky Odd One Out
Square numbers, primes, planets, insects and adverbs: eight rows where the odd one out takes real thinking.
Classroom activity · Logic puzzles and brain teasers
Shape Math Challenge
Four harder shape puzzles. In the last one you must find the circle first, even though it is on line 2.
- 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
“Each shape stands for a number. The same shape is always the same number. Solve each puzzle, one line at a time.”
Teacher tip
Point out that you sometimes need to solve a later line first.
How to use it
- Model the first puzzle out loud, thinking through each clue.
- Give pencils with erasers. Logic puzzles need lots of fixing.
- Keep a few copies in an early finisher bin so they are always ready.
Watch for
Kids who guess instead of reasoning. Ask them to explain each answer.
Talk about it
- How did you know you were right?
- What would you change to make it harder?
Take it further
Have kids write their own puzzle for a classmate.
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 4–5
6 by 6 Sudoku Puzzles
Two 6 by 6 sudoku puzzles with the numbers 1 to 6. A step up from the 4 by 4 mini sudoku.
Grades 4–5
Logic Grid: Space Camp
Two 4 by 4 logic grids at space camp: which rocket each kid built and which planet they visited.
Grades 2–3
First Logic Grid Puzzles
Two small 3 by 3 logic grids with two clues each: the perfect first logic puzzle.
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