Charles Coomber of San Diego yesterday took an innovative approach to teaching his 7th grade class geometry while in quarantine: conduct the whole lesson from inside Half-Life: Alyx.

Half-Life: Alyx was released on Sunday March 23. Coomber, however, was familiar enough with the game by the following day to not only know where to find working marker pens, a dry-wipe eraser, and a suitable surface to write on; but to also have his in-game handwriting down to an enviable level of legibility.

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