English Grammar · Activity 3

Save the
Forest! 🌳

A Digital Escape Room about Modal Verbs & Sustainability

🎯 Level: 5th Grade Primary 🌍 CEFR: A2–B1 ⏱ Duration: 50 min 👥 Groups of 4
🦊

Hello, eco-heroes! I'm Roque, and our forest is in trouble! A virus has invaded the Green Forest: trees are sick, animals are scared, and the river is polluted. Only YOU can save it. Solve four modal-verb missions, collect the four secret digits, and unlock the magic padlock to bring our forest back to life. Are you ready? 🌳✨

📖 Your Modal Verbs Map

Tap each card to remember how each modal works. Then, on to the missions!

RULES

must / mustn't

Strong obligation · Prohibition
+ You must recycle paper.
− You mustn't drop litter.
? Must we save water?
ADVICE

should / shouldn't

Soft advice · Suggestion
+ We should plant more trees.
− We shouldn't waste energy.
? Should I take the bus?
ABILITY

can / can't

Ability · Impossibility
+ A panda can climb trees.
− A whale can't walk.
? Can birds fly far?
RULES

have to / don't have to

External obligation · No need
+ We have to protect animals.
− You don't have to shout.
? Do we have to recycle?

🗝️ The Four Missions

Solve all four to collect the secret code!

1

The Forest Rules

must · mustn't

Drag each forest rule to the correct column: things we MUST do (good) or things we MUSTN'T do (forbidden).

recycle plastic
drop litter
save water
cut down trees
protect animals
waste paper

✅ We MUST…

❌ We MUSTN'T…

🎉 Mission 1 complete! Your digit is:
3
Write it down — you'll need it for the padlock
2

Eco-Advice for the Green Family

should · shouldn't

The Green family needs your advice! Choose the best sentence for each problem.

💡 The lights are on in every empty room…
🚗 Dad drives 500 metres to the bakery every day…
🍎 The kids throw food away every day…
🌟 Mission 2 complete! Your digit is:
7
Two down, two to go!
3

The Forest Ranger's Animal Quiz

can · can't

The forest ranger describes endangered animals. Fill the gaps with can or can't.

🐼 A panda climb trees, but it swim very well.
Hint: pandas are great climbers, but bad swimmers.
🐧 Penguins fly, but they swim under the ice.
Hint: their wings are flippers!
🦅 An eagle see a mouse from 1 km, but it live without clean air.
Hint: incredible eyes, but pollution is dangerous.
✨ Mission 3 complete! Your digit is:
5
Almost there, eco-hero!
4

Build the Eco-Question

have to · don't have to

Tap the words in the right order to build a correct question. Goal: "Do we have to recycle plastic bottles?"

plastic
Do
bottles?
have
we
recycle
to
🏆 Mission 4 complete! Your digit is:
2
You have all four digits! Time to unlock the forest…
🔒

The Magic Padlock

Enter the four digits in the order of the missions to free the forest!

🎉 You saved the forest! 🎉

The trees are green again, the animals are safe, and the river is clean.
Now write your Eco-Code: 5 classroom rules using one different modal verb in each!

🌿 Example Eco-Code

Pairs draft their own and upload it to a shared Padlet for class voting.