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...
Place Value

Place Value

Place Value (MathPickle, 2011) Some number systems use place value – others do not. This video takes you on a tour of number systems including Egyptian, Arabic, Babylonian, Montessori and Scientific Notation. Ron Goodman has edited the video for younger students...
Complete the Quadrilateral

Complete the Quadrilateral

Complete the Quadrilateral (Don Steward, 2013) Try finding the largest and smallest rhombus, rectangle, trapezoids etc. so their vertices  include a special point and the other vertices lie on the lattice points of a grid. The first half of the video is quite easy,...
Circus Tent Puzzle

Circus Tent Puzzle

Circus Tent Puzzle The best tents are the ones that have the smallest perimeter. Both of these tents have a perimeter of 7. That's the best you can do for $17. Each triangle is worth $3. Each square is worth $4. Given a tent price find the smallest perimeter. Let's...