Today's puzzle
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LabElementsStoryClassroomRow 8MorphTerrainToday's puzzle

Classroom

Teach the table by unrolling it

Everything here is free and runs in a browser on a projector, laptop or phone. No accounts, no installs. Share a link and the class lands on the same view.

Printable spiralStart with the Morph

Five lesson ideas

Ages 11+ · 15 min

1. Where does hydrogen belong?

  1. Show the standard table and ask where hydrogen should go and why.
  2. Play the Morph and pause as hydrogen lands in the center.
  3. Discuss: which families does it touch now, and does that match how it reacts?
Open Morph →
Ages 11+ · 20 min

2. Spot the family

  1. Switch the Morph to the spiral and tap spoke 17.
  2. Ask students to predict what the halogens have in common, then check.
  3. Repeat with spoke 1 and spoke 18, and compare reactivity.
Open Morph →
Ages 14+ · 25 min

3. Trends you can see

  1. Open Terrain on electronegativity and find the highest peak.
  2. Switch to ionization energy. Which ridges stay, which move?
  3. Have pairs write one rule that explains both landscapes.
Open Terrain →
All ages · 15 min

4. A history of discovery

  1. Open the discovery lens and press play.
  2. Pause at 1800, 1900 and 2000. What filled in, and why then?
  3. End on the two empty seats past oganesson and read Row 8 Watch together.
Open Terrain →
All ages · 5 min

5. Daily warm-up

  1. Put today's puzzle on the projector at the start of class.
  2. The class votes on each guess using the ring and spoke clues.
  3. Use the trivia hints when you're stuck, then open the element's page.
Open Daily →

Links that land in the right place

Each Terrain lens has its own address, so you can drop it in a slide or your class page:

Every element has a page too, such as /elements/carbon/.

Tips

  • On a projector, use the full-screen button on the Morph or Terrain.
  • Turn the Morph's sound on: each element plays a note as it lands, climbing across each row and dropping back after every noble gas.
  • On phones, Terrain's Tilt button lets students steer the landscape by tilting.
  • The Daily puzzle is the same for everyone each day, so a class can compare results.

A live classroom mode, where a teacher drives everyone's screen, is in the Lab plans.