Described as “a dynamic collecting place for effective UCS (Utah Core Standards) instructional support materials”, this is a good website full of resources. To find the good stuff, you will need to navigate around intuitively and click on the many different links provided within posts and in the links section on the right of the homepage.
It’s like digging around in a large chest to find things that will be relevant and valuable to your specific classes, but it’s definitely worth the time and effort. There are plenty of printable, colourful and interesting lesson plans, worksheets, presentations and assessments to be found. I found some superb items that were professionally produced and very useful for modern approaches to learning and teaching. Here’s an example of an item that I discovered through a link on the website to mathshell.org (Mathematics Assessment Project) :
http://map.mathshell.org/materials/download.php?fileid=1280 It’s a Powerpoint file that demonstrates a unique and fun approach to representing 3D objects in 2D.
There is also a pdf version of the complete lesson here http://map.mathshell.org/materials/download.php?fileid=1280
The main Mathematics Assessment Project website is at http://map.mathshell.org/materials/index.php