Khan/khan-exercises — Issue #10718: Addition 1 - Betterpedagogy?
Author: KhanBugz
Created: 2012-01-09 04:44:07+00:00
State: open
Labels: firefox, other, vista

Reporter: mpetrof@gmail.com

I teach second grade and am just exploring your wonderful work for the first time. Under basic addition problem solving I would use the ten frames approach and build tens of two sets of five and fill each ten with he second addend. This could be accomplished in a couple of ways. Use of oolor, which you already do in your format, simply showing the tens in their associated colors. Or by adding a step, start with what you have but include arrows to show movement and then add another image with the dots arranged in tens (two fives) and ones.
This comment is a little backwards because I haven't seen the video yet. I'll do that now.

[addition_1.html?seed=52&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=52&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/addition_1.html?seed=52&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%2215%5C%22%22%2C4168%5D%5D)

["15"]

Mozilla/5.0 (Windows NT 6.0; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

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