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Picture Sudoku Logic Starter
Students solve a 4 x 4 picture sudoku and explain how they know where each animal goes.
- Time15 minutes
- GradesGrades K-2, Grades 3-5
- SubjectMath
- ThemeSTEM
- ThemeGrowth mindset
Learning outcomes
- Use logic to eliminate possibilities
- Describe reasoning in words
- Persist with a puzzle that takes more than one try
What you need
- Printed 4 x 4 picture sudoku (Easy)
- Pencils
- The answer key in an envelope
Puzzle tools used
All tools are free, with no sign-up, and every sheet can be printed with an answer key.
Step by step
- Choose 4 x 4, Easy and Pictures. Tick Include answer key and print one puzzle per student.
- Explain the rule: each row, column and 2 x 2 box holds four different pictures, each once.
- Model one square on the board: find a row with three pictures and name the missing one.
- Students solve in pairs and whisper their reasoning to each other.
- Check against the key. Ask pairs to explain the hardest square.
Differentiation
Support
Pre-fill extra squares, or use the on-screen puzzle with Check.
Extend
Move to 6 x 6 Medium with numbers.
Discussion questions
- Which square was easiest to fill first?
- What clue did you use?
- What would you tell a friend who is stuck?
What to look for
Students use elimination rather than guessing and can explain their reasoning.
Frequently asked questions
Does it need reading?
No. Pictures mean even pre-readers can play.
Is there always one answer?
Yes. Each puzzle is verified to have exactly one solution.
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