Visit the robot factory where you will mix and match various body parts to build a robot. Each correct answer unlocks a new part—helping students bring their robotic creations to life while building key maths skills at the same time!

In this version, students are presented with composite shapes that include sides measured in metres (m), centimetres (cm), or millimetres (mm). They must use the provided values to calculate the total perimeter of each shape. This helps build fluency with addition, metric units, and multi-step problem-solving as they complete their robot one piece at a time.

Let’s Build – Calculating the Perimeter of Composite Shapes is perfect for Year 4–6 students revising measurement and perimeter. It’s great for rotations, independent practise, or homework using the QR code—and it adds a hands-on twist to maths learning!

Key Learning Outcomes:

• ✅ Calculate the perimeter of composite shapes using metric units
• ✅ Add side lengths measured in metres, centimetres, and millimetres
• ✅ Apply multi-step strategies to solve real-world measurement problems
• ✅ Build fluency with unit conversion and perimeter concepts
• ✅ Engage in interactive, task-based gameplay with visual rewards

How to Play:

1. Students are shown a composite shape with side lengths labelled.
2. They calculate the total perimeter by adding all the sides together.
3. Each correct answer unlocks a robot part that attaches to their growing creation.
4. The game continues until all questions are answered and the robot is fully built.
5. At the end, students see their completed robot celebrate their success!

Ideas for Classroom Use:

• 💡 Use during your perimeter or measurement unit for upper primary students
• 💡 Great for Year 4–6 students needing consolidation or extension in perimeter
• 💡 Pair with a practical task using grid paper or classroom measurement stations
• 💡 Follow up with a challenge to design their own composite robot shapes to measure

Top Teacher Tips:

• 💛 Let students personalise their experience by choosing from six characters before the game begins
• 💛 Select the number of players or teams at the start of the game to suit individual, paired, or group play
• 💛 Send the QR code home for students to play as a homework or revision task

Let’s Build – Calculating the Perimeter of Composite Shapes combines maths mastery with robot-making fun—turning problem-solving into a hands-on learning adventure!