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.
Classroom activity · Logic puzzles and brain teasers
Letter Sudoku Puzzles
Sudoku with the letters A, B, C and D: four 4 by 4 puzzles that each have exactly one answer.
- Grade level
- Grades 2–3
- Time
- About 20 minutes
- Answer key
- Yes, page 2 of the PDF
- Kids practice
- Logical reasoning, Problem solving, Persistence, Explaining thinking
What kids do
“Write A, B, C or D in each empty square. Each row, each column and each thick box has each letter once.”
Teacher tip
Remind kids that each row, column and box has A, B, C and D just once.
How to use it
- Let kids work with a partner and explain their thinking.
- Start with an easier puzzle before the harder ones.
- Keep a few copies in an early finisher bin so they are always ready.
Watch for
Frustration on hard puzzles. Give one clue at a time as a hint.
Talk about it
- What did you do when you were stuck?
- What was the trickiest part? How did you get past it?
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 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.
Grades 3–5
Number Pyramid Puzzles
Four number pyramids that grow from three to five rows. Add up, and sometimes subtract down.
Grades 3–5
Math Brain Teasers
Ten math brain teasers, from the frog in the well to adding eight 8s to make 1,000.
Free for teachers
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