Blockchain fundamentals
how a wallet and coin address works
how sending/receiving money works
how to verify the validity of a coin
how to split coins into smaller coins
how to combine smaller coins into bigger coins
how to split/combine wallets
physical coins
typical blockchain fees
some common bitcoin scams (like paypal chargebacks)
how to hacker-proof your bitcoins (like how to remove your wallet from the exchange where you bought the coins)
backups and how to prevent coin loss
bitcoin fundamental drivers
market share of bitcoin exchanges
blocksize, segwit (???), lightning (???), other upcoming limitations of the Bitcoin design and how they will be overcome.