Animal Digits (addition, algebra)

Animal Digits (addition, algebra)

Animal Digits / Digit Sums (Julia Robinson Mathematics Festival, 2020) The number in each circle is the sum of the digits in all connected circles. Play around with your class – making simple patterns of connected circles and then trying to put numbers in them...
Squirrel Nutkin (counting, patterns)

Squirrel Nutkin (counting, patterns)

Squirrel Nutkin (Richard Guy et al., The Inquisitive Problem Solver, 2002) The theme is chosen from one of Beatrix Potter’s animals. I grew up with these stories in Belfast so I’m pleased to have found the perfect mathematical home for Squirrel Nutkin. 😉...
Multiplicative Bingo (probability, factoring)

Multiplicative Bingo (probability, factoring)

Multiplicative Bingo (MathPickle, 2012) This is a great game to teach factoring and probability. Students should already be comfortable with the multiplication of two numbers 1-6. Teaching is an experimental science. Don’t expect to be a great teacher your first...
Smileys (algebra, patterns)

Smileys (algebra, patterns)

Smileys (Daniel Hodgins & Mason Philips, 2021) The Julia Robinson Mathematics Festival has an app that offers a playful start: https://jrmf.org/puzzle/smileys/ I like this activity as an algebraic exercise. I have not proven the solutions presented in the video...