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So I got my father an ipad etc and he is going to make physics videos in Hindi for 11th, 12th and college students and upload on youtube. For a 70 yr old (with hearing disability), i am awestruck how hard he is working to learn these tools and making videos. [1]
He has asked me very insightful questions on how to make it accessible to students. On the right length, on using tools like good notes, drawing figures, on right topics, on language. And his speed of learning is super. I am looking forward to putting them online. [2]
Btw, is your dad from Raipur?
I think the singular thing we need to learn from our elders is their adaptability. Haven't ever heard them crib or complain. They just go about it with an amazing willingness to learn.
So awesome! Sending lots of positive energy your & his way. 
My pranam to him
My mum who is 56 has started doing the same for high school math. She is using a PC with A bamboo tablet to record her screen. This is someone who had barely used to computer before.
I would subscribe. 
Every so often I can still trace my mental models in certain topics back to his teaching.
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