Students correctly answer questions to reach the top of the mountain. How far will they make it up the mountain? As they progress higher up the mountain, the scenery will change. At the end, a polaroid is taken of how far they made it up the mountain with a score. This is a cooperative game where if there is more than one player, they must work together to answer the questions correctly to make it to the top of the mountain as a team.

In this version of the game, students are presented with sets of decimal numbers and must compare their values to identify the largest. The questions include numbers with up to three decimal places and require students to apply place value strategies and reasoning to make accurate comparisons. Each correct response pushes the team further up the mountain trail.

Let’s Hike: What is the Largest Decimal to 10? develops students’ ability to read, interpret, and compare decimal numbers in a supported and collaborative way. The scenic progression and team-based approach make it an ideal setting for practising higher-level place value understanding in an engaging, low-pressure format.

Key Learning Outcomes

• ✅ Compare decimal numbers with up to three decimal places
• ✅ Identify the largest value using place value knowledge
• ✅ Strengthen understanding of tenths, hundredths, and thousandths
• ✅ Develop reasoning and collaborative problem-solving skills

How to Play

1. Students choose their characters and start their hike from the mountain base.
2. A question appears displaying multiple decimal numbers.
3. Students must identify and select the largest decimal value.
4. Each correct answer moves the team higher up the mountain path.
5. For team play, students must agree on the answer before progressing.
6. At the summit, a polaroid snapshot shows how far they climbed and displays their final score.

Ideas for Classroom Use

• 💡 Use in small groups to support decimal comparison strategies with collaborative discussion.
• 💡 Project the game for whole-class play and encourage students to justify their answer choices aloud.
• 💡 Follow up with a number line activity or place value grid to visually reinforce decimal size and order.
• 💡 Use during a decimals unit as a high-engagement consolidation activity.

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 Hike: What is the Largest Decimal to 10? challenges students to think critically while climbing to success. With engaging visuals, team collaboration, and decimal comparisons, it’s a powerful tool for building place value confidence through cooperative play.