DS20mo is developing his sense of words quickly. AFAIK, he started decoding (not sight reading, which he was already doing) last week. Today he spelled several 3-letter words in a game, one of which was "tub". He looked at it then said "ah" (phonetic short a), "tuba". It may not be much, but I was impressed that he was able to make an extension of the word so soon.

What is to give light must endure burning.