The BIG FIVE in Reading

Professionals and parents alike can gain insight from the research, examples, and questions posed for them on the DIBELS website's The Big Five Ideas in Reading.  It's news for anyone interested in developing important language skills for preschool aged children, up through 3rd grade. 
  http://reading.uoregon.edu/

Read It and Find Answers

http://www.anniefox.com/pdf/TeenSurvivalGuide.pdf

It's free......helps answer questions kids have, while offering advice that's straight forward.
It's Annie Fox's Teen Survival Guide.

Free On-line Calculators

http://www.calkoo.com/
This site has over 40 calculators, in ten different categories.  Hopefully one will do the job for you!