Math for Big Kids: Concentration Problems

One type of math our fifth and sixth graders have to do that our younger students don't is called proportional reasoning.  They get to solve problems like this tea problem we did a few months ago.

If you are not in fifth or sixth grade, you still might be able to figure this one out!


Put the cups in order from "Strongest tea" to "weakest tea"
All of the cups are the same size
Cup A is filled to the top and has 3 tea bags
Cup B is filled 1/8 of the way and has 1 tea bag
Cup C is filled 1/2 way and has 2 tea bags
Cup D is filled 1/3 of the way and has 1 tea bag

Can you make up a concentration problem?  You can use tea bags, lemonade or anything else that requires a mixture!

You can put your answer to the tea problem in the comment section below or send it to me in an email!  If you make up a concentration problem, take a picture and email it to me so I can post it on the blog!