Decode the language
Review prepositions, relative clauses, clues and logical evidence.
A2 · 45-MINUTE COLLABORATIVE ADVENTURE
THE CHAMBER
OF CLUES
Five mysterious houses. Fifteen secret clues. One hidden fish. You cannot solve the mystery without your partner.
📚 Reading🧩 Reasoning🎙 Speaking
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Exchange secret scrolls
Explorer A and Explorer B receive different clues. Speak to connect them.
Submit your evidence
Complete seven answers and record a discussion with your partner.
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CHAPTER I · LANGUAGE CAMP
Decode the ancient grammar
Use this language to understand the evidence and defend your conclusions.
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Prepositions of place
Next to = beside. Immediately to the left of = directly before the next house. In the center = house 3 of 5.
The green house is immediately to the left of the white house.
CCQ: Can another house stand between them? No.
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Relative clauses: who / that
Use who for people, and that for people or things in defining clauses.
The person who keeps horses lives next to the cyclist.
CCQ: Does “who” refer to a person? Yes.
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Present simple for facts
Use present simple when a clue describes a fact or permanent situation.
The Norwegian lives in the first house. The Swede keeps dogs.
Third-person singular: live → lives, keep → keeps.
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Explaining deductions
Use because, according to, must, cannot, I agree, I disagree when sharing evidence.
According to clue 9, the Norwegian lives in house 1, so they cannot live in house 4.
A correct answer needs proof, not a guess.
Mini practice
Imagine five houses in a row. House 3 is in the center. If the blue house is next to house 3, can it be in house 1? Explain why not.
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CHAPTER II · THE WORD GALLERY
15 key vocabulary cards
Tap each illustrated card to reveal the meaning and an example. Study them before entering the chamber.
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CHAPTER III · THE SECRET CHAMBER
Enter your expedition
Your partner must use the same team code and select the opposite role. Each person opens this page on their own device—even on different networks.
🔒 Do not show your scroll to your partner. Speak aloud to exchange information!
My secret evidence cards
The five houses · Complete the logic grid
Use every color, nationality, drink, pet and hobby exactly once. Listen to your partner's clues to complete the table.
| Category | House 1 | House 2 | House 3 | House 4 | House 5 |
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💡 Strategy: Find the first house and the center house first. Then use “next to” and “immediately to the left of”.
Evidence log · Seven answers
Agree on the complete line-up, then fill all seven answers. Both explorers must contribute.
PRIVATE · MY RESULTS
Check your grade
Only published grades are visible. Select your school, group, and registered name, then enter your document number. Never share your number with classmates.
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PRIVATE · TEACHER ACCESS
Archive keeper's panel
Protected access to students’ answers and recordings. Never share your teacher key with students.