Curated OER
Narrow It Down
Students participate in a logic activity in which they identify items. In this logic activity, students work in groups as they play a questioning game that is similar to "Twenty Questions." They ask questions and rule out items in a...
Maths Challenge
Maths challenge.net: Painted Faces
Mathchallenge offers this mathematical reasoning problem, a one star problem requiring nothing more than a logical mind and paper and pencil, to deduct the painted faces problem