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Watch this teacher’s maths lesson from inside Half-Life: AlyxSo THAT’S what a supplementary angle is
So THAT’S what a supplementary angle is

Parents and teachers are scrambling to keep the kiddywinkles occupied and educated in these Covid-19 days, and I’ve not seen anything that engaged me more than this maths lesson given insideHalf-Life: Alyx. San Diego teacher Charles Coomber jacked into Alyx this week to record a refresher on angles, drawing on windows with Alyx’s virtuamarkers and even salvaging a broken plank from her balcony to help explain supplementary angles. It’s a charming lesson, and certainly more informative than all the cocks and cusses I’ve seen people drawing in-game.
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“Review of Angle Vocabulary for Homeschooling Week because I have to teach today, butHalf-Life: Alyxjust came out,” he said in describing Monday’s excellent decision.
Coomber teaches seventh and eighth grade at the Otay Ranch Academy in San Diego (that’s year 8 and 9, or S1 and S2 in Scotland - so kids aged 12-14 or thereabouts). Most schools in California have been closed for the obvious reason.
If you found the lesson useful, perhaps you’ddonate to Coomber’s classroomto buy new tools and supplies.
As well as a convenient learning environment, the game’s a good’un. Our Graham said in hisHalf-Life: Alyx review, “I hope I don’t have to wait for brain-computer interfaces to exist before the series returns again, because despite a handful of complaints, I still think Valve make the best first-person shooters around.”