Maths Crime Unit: 2D Shapes | 5-Lesson Videos and Teacher Resource Pack

Five lessons. Five crimes. Can your class crack them all?

Turn your 2D shapes unit into a series of classroom crime investigations with Maths Crime Unit.

Across five cases, students join Detective Magpie and Barry Pigeon as they examine clues, question witnesses, hunt shape criminals and use their knowledge of 2D shape properties to solve each mystery.

Designed for Years 1–2, the Maths Crime Unit combines short, free video episodes with ready-to-print classroom activities — giving teachers an engaging way to teach and reinforce shape knowledge without creating another lesson from scratch.

This Teacher Resource Pack includes all 5 cases:

Case 1 – Square: Who Robbed the Bank?

Identify a square using its sides and corners.

Case 2 – Triangle: The Square Slicer

Investigate triangles and recognise their defining properties.

Case 3 – Rectangle + Circle: The Getaway Robbery

Compare shapes using sides, corners and the ability to roll.

Case 4 – Pentagon vs Hexagon

Sort and identify shapes by their attributes to uncover the real criminal.

Case 5 – The Great Shape Breakout

Put everything together in a final search for escaped shape criminals.

What you get

✓ 5 printable Case worksheets/resource sets

✓ Activities designed to accompany each Maths Crime Unit episode

✓ Drawing, identifying, sorting and reasoning tasks

✓ Extension activities for students ready for an extra challenge

✓ A complete five-lesson 2D shapes sequence

✓ Print-and-go PDFs for easy classroom use

The videos are FREE to watch.

Each resource is designed to work alongside its corresponding Maths Crime Unit episode, available free on YouTube.

Made for real classrooms

Maths Crime Unit was created by an Australian teacher to make maths lessons easy to prepare, engaging to teach and memorable for students.

Print the case. Play the episode.

Your Junior Detectives do the rest. 🚨

5 lessons. 5 crimes. One very suspicious collection of shapes.