Thursday, October 21, 2010

Extending Work on Combining Problems

For the past few days, I've really focused instruction on the first graders who are just beginning to work on addition stories.  Now that they have a pretty solid grasp on what is expected of them when it comes to solving and recording a solution for a combining problem, I was able to assign this group independent work and focus my instructional efforts on the second graders who were ready to take things a little further.

The older group is totally fluent with basic combining stories (i.e. "There were 3 dogs.  2 more came.  How many do are there now?")  Today we worked with a more challenging vaersion of this kind of problem-- the missing addend combining story (i.e.  "There were 3 dogs.  Some more came.  Now there are 5.  How many more came?")  

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