Mission: Unlock the Maths Vault

Overview

Students consolidate multiplication and division through an inclusive whole-class escape-room mission. In fixed, mixed-ability teams, all students attempt the same six short challenges at the same time using concrete materials, arrays, repeated addition, equal grouping, sharing, partitioning and related fact families to reveal a six-digit code. When a team thinks it has solved a challenge, one representative walks safely to the teacher and whispers the answer. If it is correct, the team receives or accepts the next challenge; if it is incorrect, the teacher gives a brief prompt and the representative returns so the team can revise before checking again.

The focus is collaboration, persistence, mathematical explanation and respectful competition—not speed. Students may use their preferred communication mode, request a hint or take a supported role.

Learning intentions

• WALT represent multiplication and division situations in different ways.
• WALT use twos facts, doubling and halving to solve problems.
• WALT connect multiplication facts with related division facts.
• WALT explain how our answer fits the problem.

Success criteria

• I can make an array, equal group or sharing model.
• I can use repeated addition, skip-counting, partitioning or doubling.
• I can write a related multiplication and division fact family.
• I can explain what my answer means and use it to find a code clue.

Curriculum links

• Number — multiply and divide by one-digit numbers using repeated addition, equal grouping, arrays and partitioning.
• Algebra — recall multiplication facts for twos and use doubling and halving to develop related division facts.
• Number — model and interpret practical multiplicative problems.
• Algebra — use known addition facts and related subtraction facts when partitioning quantities.

Lesson structure (60 minutes)

1. 0–5 min · Welcome and regulation. Open with the mission hook and visual timer: “The Maths Vault is locked, and the prize can only be opened by mathematicians.” Place students in fixed, mixed-ability teams and preview the predictable routine, safe movement and opt-in participation choices. Establish safety expectations: walking feet or safe movement, one representative at a time, no shouting answers, stay in the team area, and respectful competition. Introduce rotating team roles so all students participate: reader, builder, recorder, checker and representative; roles may be adapted or shared.

2. 5–13 min · I do — model a challenge and checking routine. Display the worked array and strategy prompts and model 3 groups of 4 with counters: (4+4+4=12), (3\times4=12), (12\div3=4), and (12\div4=3). Think aloud about the difference between sharing 12 into 3 groups and making groups of 3. Model how the team agrees on an answer, how one representative walks to the teacher and whispers it, and how a brief prompt is given if the answer needs revising. Students help identify the number of groups, items in each group and total.

3. 13–20 min · We do — practise together. Give each fixed team the six-challenge recording sheet, counters and Challenge 1. Solve one example together: “There are 2 trays with 6 biscuits on each. How many biscuits?” Students build or draw an array, write (6+6=12) and identify the matching division facts. Practise the answer-checking routine and role participation. Pause for a traffic-light confidence check using fingers: green, amber or red; reassure students they may ask for a hint.

4. 20–46 min · You do — whole-class team race. Keep students in fixed teams at their workspaces. Give every team the same challenge at the same time. Teams solve, explain and record before choosing one representative to walk safely to the teacher and whisper the answer. Correct teams receive or accept the next challenge; teams with an incorrect answer receive one brief prompt and return to revise before checking again. Only one representative from each team may move at a time; teams keep voices low and never call out answers. The teacher uses a visible four-minute pacing check, announces transitions, keeps a queue or staggered checking point, and records which teams have checked without revealing answers. Pause, model or provide a hint if several teams are stuck, while offering an extension to teams ready to continue.

• Challenge 1: Array Alley. Build 3 rows of 4 counters. Write the repeated addition and multiplication sentence. Clue: total = 12.
• Challenge 2: Double Trouble. Use doubling to solve (2\times7), then write the two related division facts. Clue: 14.
• Challenge 3: Share the Treasure. Share 18 gems equally between 3 chests. Draw or build the groups and write the division sentence. Clue: 6.
• Challenge 4: Grouping Gate. Make groups of 4 from 20 counters. How many groups? Write a matching multiplication sentence. Clue: 5.
• Challenge 5: Partition Port. Solve (3\times6) by partitioning 6 into 5 and 1. Record the repeated addition or equations. Clue: 18.
• Challenge 6: Fact-Family Lock. Complete: (4\times5=\square), (\square\div4=5), (20\div5=\square), (5\times4=\square). Clue: 20.

5. 46–53 min · Unlock and explain. Teams arrange their clue digits in challenge order to make 12–14–6–5–18–20. The teacher confirms that these are checkpoint numbers, then displays the final code reveal. Students use the first digit of each clue to enter 126518, revealing the message “MATHS ROCKS!”; teams justify one solution using a model and one using a number sentence. If a team has a different answer, it checks the model rather than simply changing the code. Celebrate careful checking, teamwork and explanation rather than the first team to finish.

6. 53–60 min · Reflect and exit. Students complete the final box on the reflection and exit-ticket section: “Show two ways to solve (2\times8)” and “Write one related division fact.” Invite students to share a strategy, pass, or point to a model. Finish with a calm breathing reset and celebrate collaboration, persistence and explaining—not speed.

Resources

• the complete mission slide deck with hook, array model, vocabulary, whole-class challenge instructions, visual timer, safe-movement expectations, checking routine, prompts and final reveal
• the six-challenge recording sheet with six answer boxes, model space, code line and exit ticket
• 120 counters, linking cubes or bottle tops
• One clearly labelled challenge card or envelope for each team, with the next challenge handed out after a correct check
• Mini-whiteboards, markers and pencils
• Small trays or hoops for making equal groups
• Optional safe class prize or final message card
• Teacher answer key, brief hint cards and a team progress/checking list
• Role cards: reader, builder, recorder, checker and representative

Assessment

• During modelling, check whether students distinguish “groups of” from “groups shared between” and can identify the total, group size and number of groups.
• During the whole-class team race, listen for repeated addition, array language, doubling, halving and fact-family explanations. Use the checking list to note students who explain, model, record or revise, and identify students needing reteaching; do not assess speed or willingness to run.
• When a team whispers an answer, check the answer and the supporting model or explanation. If it is incorrect, give a brief prompt such as “What does this number represent?” or “Show the groups again,” then allow the team to revise and recheck.
• Exit ticket: accept a drawing, materials-based explanation or equations. Expected answers are (2\times8=16), (8+8=16), (16\div2=8) and (16\div8=2).

Differentiation

• For students working well below benchmark, provide smaller totals, pre-drawn arrays, ten-frames, numeral-and-picture cards, a worked example and sentence starters: “I made ___ groups of ___”; “The total is ___.” Allow a trusted partner, adult scribing, oral responses and extra processing time. A student may be the representative only when comfortable; a teacher or trusted peer can carry the answer instead.
• For EAL/D learners, display visuals and gestures for total, group, share, array, double, halve and equal. Read each problem aloud, rehearse it with a partner and accept home-language discussion before an English explanation.
• For students with additional needs, use a clear team workspace, visual timer, reduced writing demand, quiet working space and predictable movement routine. Roles are flexible and may be shared; students may observe before joining, remain at the team area, use an alternative communication method, or request a teacher hint. Maintain low-pressure, respectful competition and never require running.
• For advanced learners, require two strategies, a labelled array and all related facts. Ask them to create a new challenge with a different answer, explain why multiplication order can be reversed, or solve a challenge mentally and prove it with partitioning.