Saw this site where people can share their lesson plans. Pretty neat. However, it could make people a little lazy by using these instead of coming up with their own which hampers creativity.
"TogetherLearn lets you bring people, ideas, and conversation together live so you can discover a whole new world of learning."
So much potential here! Includes Khan Academy lessons, so you can discuss and mark up similar lessons to the ones we have been looking at this last week.
The only limitation - as far as I can tell after just an hour of playing with it - is that you cannot upload/create your OWN lessons (yet). So there is a ways to go to be fully functional for classroom use. Still, very cool technology that will likely improve as more people join.
10 activities involving numbers that you can do with your students on the first day of school. I especially like The Birthday Bar Graph, Whats That Number, and The Counting Game!
I think a good way to start your first math lesson is to mention an example which all students can relate to, like rollercoasters or movie theatres or Facebook. Then find a way to show the math involved or have the students figure out something.