Cannibal Fish

Cannibal Fish

Cannibal Fish This is a game for 3-8 players. Players start by choosing different numbers less than 10. This is their initial fish size. Everyone also agrees to the size of fish that will win the game. In this game, Anna, Bob and Clara have agreed...
Earth Attack – addition puzzle

Earth Attack – addition puzzle

Earth Attack (MathPickle, 2012) Save the Earth by shooting down the invaders as quickly as possible. Unfortunately there is a problem, you only have one ion cannon and it can only shoot at one place at a time. This puzzle is perfect for an open-ended...
Bubbling Cauldrons (single digit addition)

Bubbling Cauldrons (single digit addition)

Bubbling Cauldrons (Integer Partitions were first explored by Issai Schur, 1916) After students have found the optimal answer (eight frogs in two bubbling cauldrons) you can challenge students in multiple directions. Let your students decide: 1) David Martin (2020...
Building Skyscrapers of Different Heights

Building Skyscrapers of Different Heights

Building Skyscrapers of Different Heights (MathPickle, 2010) Stack 10 blocks to make any number of towers… the heights of the towers must be different.  The king wants to see ALL the solutions! I am interested in mathematics only as a creative art. G. H. Hardy...
Speed Counting to Infinity

Speed Counting to Infinity

Speed Counting to infinity (MathPickle, 2010) For one class teachers should just count and count and count. There is no better way to show the relative size of numbers. Cheating after 200 is allowed 😉 I now believe in starting really, really slowly....