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...
Termite Terrorists (addition, patterns)

Termite Terrorists (addition, patterns)

Wiki Histories are 10-minute pencil & paper games. They are great for teaching problem-solving, world history, and board game design. They can be played in any grade starting at grade 2. Each comes with a history essay that is written for high school students. If...
Ballast – addition puzzles

Ballast – addition puzzles

Ballast – addition puzzles (MathPickle, 2012) Ballast addition puzzles are great for students learning addition. They are presented with three warships in each puzzle. Two of these can be made to float by balancing the ballast. The remaining warship is...
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...