Try this link for practice using the first derivative: http://archives.math.utk.edu/visual.calculus/3/graphing.5/index.html
Check out this site for more information on the second derivative: http://ltcconline.net/greenl/courses/105/CurveSketching/SECTST.HTM
For more practice recognizing increasing/decreasing, maximum/minimum, concave up/concave down, and points of inflection click here: http://www.math.ucdavis.edu/~kouba/CalcOneDIRECTORY/graphingdirectory/Graphing.html
