The best place for doing high-level math on an iPhone or iPad may be the Calculator app's Math Notes tool. In fact, with an ...

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

Teeth whitening is one of the most common at-home beauty treatments, largely because teeth discolouration can affect people’s confidence. It’s caused by drinking tea, coffee, juice and wine. But it ...