The end is near! It is hard to believe we are almost done with this year. Our family has enjoyed it. I do hope that we fill in our "empty Mondays" with nature walks since the weather will be right and we are already used to getting out of the house. That may be wishful thinking, but we'll see.
It is a little strange when you remember the history sentence happening. The google pictures are pretty cool and you can get the news reports (Tom Brokaw) on youtube (the first minute is pretty good) this second one is better at explaining what it all means.
I don't have much to add here - I just think that the mnemonic FAN BOYS for the coordinating conjunctions is great.
The commutative law is s big word for something your kids have probably figured out by just playing with numbers. I would show it clearly with objects (3 beans plus 7 beans now switch 7 beans plus 3 beans). Then contrast it with subtraction (or division if your kids are familiar with that yet). I think my son sometimes forgets that order matters in subtraction because he spent so much time in addition where it didn't matter.
I know there are a ton of experiments showing the 3 characteristics of light out there. Maybe we will actually do one of them. We are reading Through the Looking Glass right now - which is timely.