http://illuminations.nctm.org/Activities.aspx?grade=4

The above website has several interactive online activities.  For this post I will be talking about the Function Matching.  This activity gives a graph and the students are supposed to find the equation to match it.  It gives many different types of graphs which include linear, Polynomial, Exponent/Logarithm, and Periodic. What is great about this activity is that it can be used for everything from Pre-Algebra to Pre-Calculus as either an in-class activity or an after school enrichment/intervention.  If I were to use this in-class I would use this as an activity to review and practice writing equations of lines given.  Students always have a hard time writing equations of any lines and this is perfect way for them to practice.  As a group activity, I would call students up individually to enter the equation, or have a wireless mouse that I  take to their desk so they can do it there.  Another use for this would be an after school intervention where the student can practice it on their own.  To add to the engagement of this website, it could easily be made into a competition with each correct answer being a point earned.  This website has many other activities and options for all classes.

Enjoy!  Casey