Activity Database

Search
Activity Authors
Activity Circles
Click To Sort By
Grade
Audience
  • 1st - 2nd (12)
  • 3rd - 5th (30)
  • 6th - 8th (83)
  • 9th - 12th (85)
  • College Level (72)
  • For Teachers (81)
Topics
Topics
  • Mathematical Modeling (15)
  • Number Theory (25)
  • Parity / Invariants (2)
  • Problem Solving / General (39)
  • Probability and Statistics (3)
  • Social Justice Mathematics (5)
  • Algebra / Arithmetic (33)
  • Combinatorics (31)
  • Geometry (36)
  • Mathematical Games (26)
Supporting Materials
Supporting Materials
  • Facilitator Guides (88)
  • Handouts (38)
  • Lesson Plan (10)
  • Photos & Videos (28)
  • References (36)
  • Virtual Tools (17)
Session Styles
Session Styles
  • Problem Posing (45)
  • Problem Sets (51)
  • Try a Smaller Problem (40)
  • Work Backwards (21)
  • Integrates Technology (17)
  • Kinesthetic Element (11)
  • Manipulatives (33)
  • Multiple Representations (33)
Mathematical Practices
Mathematical Practices
  • MP1 - Make sense of problems and persevere in solving them. (83)
  • MP2 - Reason abstractly and quantitatively. (53)
  • MP3 - Construct viable arguments and critique others' reasoning. (58)
  • MP4 - Model with mathematics. (58)
  • MP5 - Use appropriate tools strategically. (40)
  • MP6 - Attend to precision. (40)
  • MP7 - Look for and make use of structure. (72)
  • MP8 - Look for and express regularity in repeated reasoning. (61)

Mind Reading With Math

By:


For the Math Mind Reading Trick, you’ll need a volunteer who’s willing to have their mind read. The person performing the trick holds out the four cards and askes their volunteer to pick a number (whole numbers only, no fractions allowed!) between 1 and 15 and keep it a secret. Next, the mind-reader asks the volunteer if their number is on the cards one-by-one. The volunteer answers the questions with yes or no answers, and with some magic and a little math, the mind-reader figures out their number!

Queen’s Move

By:


Students will explore a game between two players moving a chess Queen from place to place on a square grid. The Queen may move any number of spaces to the left, any number of spaces downward, and any number of spaces on the downward-left pointing diagonal. Each player takes turns using these moves. Whoever gets the Queen to the bottom-left square first wins!

Bubbling Cauldrons

By:


Place our numbers into the cauldrons in ascending order – you can choose which cauldron each one goes in. However, if two numbers in one cauldron add up to a third number in that same cauldron, they bubble up and cause an explosion! This means that all the numbers, leave the cauldrons, and you must start all over again.

Our goal is to find the largest number we can place in our cauldrons without them exploding… do you think you’re up for this daunting task?

Humans, Zombies, & Other Problems Crossing the River

By:


A town faces an epidemic of zombies! Luckily, the virus has just started to spread and the infected are able to stave off their hunger for human brains… for now. In fact, they’re willing to work alongside the remaining humans to help them get across a river to safety. Can you get all the humans and zombies across safely?

Puppies & Kittens

By:


A local animal shelter has a puppies and kittens available for adoption that you just happen to be itching to own! In this week’s “paw-some” activity, two players begin with a certain number of animals to choose from and take turns adopting animals. The player to adopt the last animal wins! We’ll be constructing a strategy for beating this game and exploring a bit of sequences.