
Arranging the high school standards into courses  Tools for the Common Core Standards

RT “: Seven YouTube Channels N
RT “@Edtweeps: Seven YouTube Channels Not Named Khan Offering Math Lessons via @rmbyrne http://t.co/zLm9Bvuf” #mam #mathchat

EpsilonDelta: Conic Sections: Parabolas
I split the class into groups of two or three and gave each group a sheet of this graphing paper with one of the lines darkened (which is to be the directrix). I told the students to plot seven or so points that are equidistant from the point in the middle and the darkened line. We found a couple together, and then they were good to go for the rest. When I gave them the following definition, they were able to fill in the blanks no problem:

New iPad App Lets Any Teacher Be Like Sal Khan  Edudemic
New iPad App Lets Any Teacher Be Like Sal Khan  Edudemic http://t.co/peUyTyGp via @edudemic @educreations @KleinErin #edtech #ntchat
Saturday, April 21, 2012
Things I've Tagged (weekly)
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