Mastermind Graduate: Academy Vault Certificate
A keepsake certificate for children who open all 20 locks. It records the agent's name and codename, lists the thinking skills they used (odd one out, sequences, codes, grids, Sudoku, truth-tellers and fair tests) and shows the 20 vault padlocks as a final tick-off.
Part of the pack
Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack
This is page 23 of the pack. Ages 9-10
About this worksheet
- Topic:
- Graduation certificate
- Pack:
- Page 23 of 24 in Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack.
How to use this worksheet
Use after the last mission and the answer key. Fill in the name and codename, colour any remaining padlocks and add a signature and the date. Display it or keep it in a portfolio.
Materials needed
- Pencil
- Colouring pencils
Extension activities
- 1Make a certificate for a family member who played along.
- 2Teach a puzzle from the pack to a friend.

Written by
Hemsweta Jain · Teacher Cheena
MBA and Early Childhood Educator, teaching since 2014 · Founder of RaisoActive, Mumbai
Every RaisoActive worksheet is designed and checked by the founder before publishing.
Published · Last reviewed
More from Critical Thinking Worksheets for Ages 9-10: Mastermind Academy Logic Puzzle Pack
Matchsticks and Letter Sums: Move One Stick and Crack the Cryptarithm
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Code-Breaker: Printable Secret Code Logic Game for Two Players
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Sequence Lab: Number and Shape Sequences, Find the Rule and the Error
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Agent ID and the Vault: Mastermind Academy Mission Tracker
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Balance Masters: Shape Equations, the Fake Coin and Heavier-or-Lighter Puzzles
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Odd One Out: Defend It. Reasoning Worksheet for Ages 9-10
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Who Owns the Robot Fish? A Street of Four Houses and Eight Clues
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River Crossing Challenge: Classic Logic Puzzle and Torch Bridge
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Guides for this topic
Age-Appropriate Problem-Solving Activities: Building Critical Thinkers from the Ground Up
Discover fun, age-appropriate problem-solving activities for children ages 1-8. Build critical thinking, logic, and reasoning skills through play-based learning.
Critical Thinking Activities That Actually Work for Young Children: Building Tomorrow's Thinkers Today
Discover proven critical thinking activities for young children. Age-wise logic games, questioning techniques, and hands-on ideas to build thinking skills at home.
Preparing Your Child for a Rapidly Changing World: Essential Skills for Future Success
Discover the essential 21st century skills your child needs for future success. Practical tips on creativity, critical thinking, digital literacy & emotional intelligence for ages 1-8.
Reviews
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