As several people have said, wikipages is not a good website to use. The information is not coming from an authorized source and so there is no guarantee that it is accurate. I do not allow my physics students to use this as a source when writing background for a lab report.

Math forum seems to have many useful resources but it is not free. I think I would use it if it was free.

It is hard to even get a glimpse of the different resources without membership.

I love the apps on this website but the website comes with no instructions.

The download section is not as easy to navigate and the search feature does not always find the programs tha tI use yearly.

This website is always difficult to find, and to navigaqte. Often, I need programs from here but it seems hard to get them.

I was introduced to this website when I took a 1 week modeling workshop a few years ago. The website has some resources but I find it difficult to navigate. It seems like I struggle each time to find the resources I have used before. It is done by people out of Arizona State University and is the place for those who practice modeling with physics.

There are downloadable resources but for some of them you have to have attended a workshop.

A great website for calculus teachers.

Now let's look at the AP Exam page. As you can tell, this website is easy to navagate.

Now click on vectors to see one example of resources.

The sctivities and lessons has many activities that I have used in my classes.

This is an excellent website. easy to use and based on excellent educational expertise.

A useful website for students and teachers, but a little more difficult to navigate, too many different pages before getting to what you need.

Go to the professional page, and this is one of the problems I see with this website.

I like the choices across the top. This site is easy to navigate. The Lessons and Resources are a great help to teachers. Of coures, to get full advangtage, you do need to join NCTM