I am homeschooling my 12 year old son. He has been staying in his room a lot recently because he didn't pass my inspection on his chores and school work on time. He has a problem of cutting corners, so I was trying to focus on it and fix it without nagging him. I just send him to his room the rest of the day when he fails inspection. I removed everything in his room so that his room would be boring, but I found he was hiding many books in closet under his clothes and he was reading and drawing there. He loves reading.
He is a very smart child and I know by instinct he lies to me sometimes, but I usually cannot find evidence, so he gets away. But I found the evidence this time. What should I do for consequence? Thank you.