PLN

As a soon to be teacher, I recognize how important it is to lean on my peers and any available resources to make my classroom as effective as possible.  Here are some of the websites that I will use, each of which has a various benefit:

Wolfram Mathworld

This is probably the most advanced site available to mathematics teachers, explaining topics in depth and at a high level.  Not only does it explain topics in depth, it covers a multitude of topics ranging from high school level to well beyond.  For example, there are 62 pages on Game Theory, which is not a typical topic in high school mathematics, though it may be of interest of a student during a project.  It seems just about every mathematical topic is covered here from a very credible source, making it an invaluable resource. 

Khan Academy
The benefits of Khan Academy are immense and any teacher utilizing technology should have this high on their queue.  Often Khan Academy is used for flipping lessons, which allows teachers to work with students on questions after having the video "teach" the lesson.  Another approach would be to offer it as a resource for students who are struggling with a specific topic that had been learned in the past.  Rather than re-teaching the entire class, Khan Academy can be used as a resource for the student to re-learn the material independently.  Finally, it may be useful to see their approach to teaching certain topics.  Whether the lesson was taught unsuccessfully or you are stuck on the approach to take, Khan Academy can provide one method on how to teach it.

PBS for Teachers
The benefit of PBS for Teachers is in its diversity.  Lesson plans? Check.  Online community? Check.  Professional development?  Check.  Discussion Board?  Check.  The lesson plans seem most useful to me, as they are typically dynamic and interactive.  It also helps to know that they are coming from a credible source rather than randomly from Google. 

Reflections of a High School Math Teacher
I randomly came across this blog and thought it would be interesting to follow.  The teacher is down to earth and realistic about the job, but at the same time thinks creatively about what could make him a better teacher.