Friday, February 6, 2015

Math problems of the week: Common Core Inspired 7th grade word problems

From ixl.com, where "All of IXL's dynamic math and language arts skills are aligned to your standards, including: The Common Core State Standards All 50 states and D.C."

Accessed from ixl's seventh grade math page, here are three problems from the "Add and subtract integers: word problems" sample problems:

 


Extra Credit :

The most relevant 7th grade Common Core Standard is:
CCSS.Math.Content.7.NS.A.1 Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
Have the Common Core authors done a good job writing this standard?

4 comments:

Cynthia812 said...

Pretty sure my third grader could handle those easily. If I were taking the test though, I would be a little weirded out by getting 0 for two problems in a row, and then mumble to myself about the test takers playing mind games.

GoogleMaster said...

The golf question is horribly upper-middle-class-oriented. It assumes that you know what a negative score means and that the score is based on number of strokes taken.

Anonymous said...

Even kids in the upper middle class wouldn't necessarily understand the golf question. I know my children wouldn't, and I wouldn't have in 7th grade either.

Anonymous said...

The final question is poorly worded as well. Pilots measure their altitude above ground level, not above sea level. The question merely asks for elevation, not elevation above sea level.