Read.
Read everything, even if you don't understand it. Read the words and symbols until that item is boring, them read another. At this stage, it barely even matters what you are reading. There is no teacher that can show you everything that there is to know, but strong reading skills will help you discover anything.
He reads a lot. He literally started at age 1.
Although my 8-year-old son likes his teacher, he is frequently bored at school. He attends a high quality suburban public school in the United States. He has a lot of traits in common with LessWrong readers, and we would like advice for what he can do to counter his boredom. Many of you must have found grade school more or less tedious. What were your coping strategies?