Academy · French-speaking Switzerland · 4P · Mathematics
Le Secret du sentier englouti
The path to the observation hut has disappeared underwater. Read the map, compare distances and help Romy and Adam discover what changed in the woods.
The story
A mystery to solve
Romy and Adam know the path to the woodland observation hut well. Today, a small pond covers the way. With Simon, their nature-club leader, they stay on dry ground and examine the clues. What changed the stream, and which safe route can they take?
See 6 sample pagesInside the pack
What children practise
- Add the sections of a route.
- Compare distances and totals.
- Choose the useful information in a problem.
- Connect numbers, units and observations.
Learning scope
Curriculum and level
Selected Swiss PER 4P practice in whole numbers, additive problems and comparing printed length data (MSN 12 and MSN 13). Lengths provide a context for MSN 14; no real measuring or outdoor activity is required. Main calculations remain below 100. Not the full annual curriculum.
Source guidelines
Formats and delivery
What does the digital PDF include?
27 pages in A4 + US Letter, with six missions and adult answers. Download the files through Gumroad and print them at home. This purchase does not include a physical book or shipping.
Three teacher documents included with the PDF
Alongside the illustrated book, this Academy PDF pack includes three separate classroom documents, all in French:
- The story and reading texts, without the activity questions.
- Illustrated questions and activities, with space for pupils to respond.
- A teacher guide with hints, worked answers and PER curriculum references.
The two pupil documents use Century Gothic 12 with generous spacing. These documents accompany the digital PDF purchase; they are not included with the printed book.
How is the printed book different?
The printed edition is a separate A5 colour paperback with 38 pages, ordered through Lulu. Its pagination differs from the PDF. Shipping charges and delivery estimates are confirmed by Lulu at checkout.
MystMind
Ready to begin?
Try the first mission for free, then get the complete printable adventure.
