Thursday, July 7, 2016

Math problems of the week: Common Core-inspired explained answers

From the Maryland's test guidelines:

I. A 1 out of 3 point score for explanation:



II. A 3 out of 3 point score for explanation:


2 comments:

treehousekeeper said...

It seems to me that the first answer gets at the concept better. The second answer is procedural. If they wanted to see if the student knows the procedure, it seems to me that showing the work without the verbal overlay should have been sufficient.

Anonymous said...

That is sad. The first answer shows a greater understanding of the mathematical concepts - that child understands fractions, division, relationship of fractions to percentages. It is not necessary to calculate. The second person is just going through the motions, realtively. It seems the scorers are all for wordiness. I find it really sad that a kids grade is dependent on people who do not have the same understanding of the concepts themselves, and the effect it could have on the kid's future.