[cheerful upbeat music] ♪ - THANK GOODNESS FOR TODAY'S MATH LESSON. MATH IS SO IMPORTANT, BECAUSE WITHOUT IT, I WOULDN'T KNOW HOW MANY DAYS THERE ARE UNTIL MY BIRTHDAY. THERE ARE... 182 DAYS UNTIL MY ...

Half-Life: Alyx is Valve's latest instalment in the Half-Life series The game, which is only playable with a VR headset, was used by math teacher Charles Coomber to present his online math lesson ...

Yeah, math helps you make change for a dollar, and count the coins you might've found between the couch cushions. So let's start your math lesson now, and see what we can learn. [bright upbeat music] ...

A student opens their Chromebook and logs into AP Classroom. Opening their assignments, they begin an AP Daily video lesson, taking notes as they watch. The student adjusts the playback speed to 1.5, ...