Students answer questions correctly to collect treasure from the bottom of the ocean floor. Each piece of treasure is worth different amounts of points depending on its size and colour. With every correct answer, students haul up more treasure—who will end up with the biggest haul by the end of the game?

In this version, students examine a variety of 2D shapes and identify the number of corners (or vertices) each shape has. This visual activity helps build early geometry skills, reinforces key vocabulary, and supports counting and spatial reasoning in a fun, treasure-themed format.

Let’s Sail – How Many Corners? 2D Shapes is ideal for Foundation to Year 2 students learning to recognise and describe the properties of 2D shapes. Play it on the interactive whiteboard or let students use the QR code to play independently and strengthen their skills.

Key Learning Outcomes:

• ✅ Identify the number of corners (vertices) in 2D shapes
• ✅ Recognise and describe properties of common shapes
• ✅ Develop counting and visual discrimination skills
• ✅ Strengthen early geometry vocabulary and reasoning
• ✅ Engage in interactive, reward-based gameplay to reinforce shape knowledge

How to Play:

1. Students are shown a 2D shape and asked to count the number of corners.
2. Each correct answer allows them to collect a piece of treasure worth a unique point value.
3. Treasure varies in size and colour—some items are worth more than others!
4. Occasionally, a mystery treasure chest appears with a surprise inside.
5. The game continues until all questions are completed. The player with the most points wins!

Ideas for Classroom Use:

• 💡 Use during early geometry units or shape feature review sessions
• 💡 Great for Foundation to Year 2 students learning to count sides and corners
• 💡 Pair with a hands-on task sorting or drawing shapes by number of corners
• 💡 Follow up with a scavenger hunt for shapes in the classroom or school grounds

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 Sail – How Many Corners? 2D Shapes helps students practise early geometry concepts in an engaging and rewarding underwater adventure!