Another party puzzle

More party puzzles! This one is from a thoroughly-recommended book, Puzzle Based Learning1. Mr and Mrs Smith invited four other couples for a party. When everyone arrived, some of the people in the room shook hands with some of the others. Of course, nobody shook hands with their spouse or themselves, and nobody shook hands with … Continue reading Another party puzzle

Friday Five: #4

Turns out that Desmos already posts a 'Friday Five'. Wonder if I subconsciously stole the name from them? I'm posting this early (although it is Friday here) because I have a hundred little things — and one big thing — to do today. Megan Schmidt (@veganmathbeagle) is wowing us on twitter with her number spiral investigations. See below. Megan's … Continue reading Friday Five: #4