Have you tried video tutorials? I have noticed that a lot of younger people are more likely to look up tutorials on YouTube than written ones.

As a GenXer, I'm kind of horrified by how much of the "how-to" universe is shifting from written instructions to video.

(No, I don't want a video tutorial for how to knit a scarf. I want a normal pattern. Am I so out of touch? No, it’s the children who are wrong.)

Seriously, though, the next time you go through something with this employee, use a screen recorder to capture the process and then share the recording with him. Maybe it will help.