User login


Search Results


Showing results (1 to 2 of 2)

  • Thumbnail
    NRICH
    Add to list Details
    In this number puzzle/trick, learner #1 thinks of a number between 1 and 63. Learner #2 shows learner #1 six cards and asks them whether the cards contain their number. Learner #2 uses this...

    1 cent - $1 per group Ages 14 - 18 5 to 10 minutes
  • Thumbnail
    The Exploratorium
    Add to list Details
    This is a lesson plan for an activity in which learners, playing the role of archeologists, use math concepts about number bases to decipher the Dresden Codex, an ancient Mayan document. The lesson...

    1 cent - $1 per group Ages 8 - adult 2 to 4 hours

Current filters