The two versions contain the same selection of K-12 math and science resources. The High Tech option connects you to the frames version of our site. The Low Tech option takes you to the no-frames format.
Frames refers to the appearance and navigation of a site.
On a frames-based site, the display window on your computer screen is divided into separate sections called frames. This format allows the user to navigate to a new section in one frame while keeping another frame constant. In many cases, a navigation menu stays the same on part of your screen while the content in another frame changes when you link to a new section. For example, this technology allows information describing a section to appear when you move your cursor over a section label. The information will change as you move your cursor over other labels, helping you to decide which section contains the materials you are seeking.