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.
Classroom activity · Logic puzzles and brain teasers
Logic Grid: Lunch Time
Two 3 by 3 logic grids about lunch: who packed which snack, and who drank which drink.
- 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
“Read the clues. Put an X in a box when the answer is no, and an O when it is yes. Each person has just one.”
Printed on the sheet:
- Puzzle 1: Who packed which snack?
- 1. Bo’s snack is a fruit.
- 2. Cal’s snack is not crackers.
- Puzzle 2: Who drank which drink?
- 1. Dot and Ed did not drink water.
- 2. Ed’s drink came from a cow.
Words on this sheet
Cluesapplecheese crackersAnaBoCalmilkDotjuicewaterEdFlo
Teacher tip
Model the first grid out loud, then let kids try the second.
How to use it
- Model the first puzzle out loud, thinking through each clue.
- Give pencils with erasers. Logic puzzles need lots of fixing.
- Use it as a center, an early finisher choice, an indoor recess activity or a sub day page.
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 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.
Grades 3–5
Number Pyramid Puzzles
Four number pyramids that grow from three to five rows. Add up, and sometimes subtract down.
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