Disclosure: TenMarks recently became an advertiser on Free Technology for Teachers. Prior to that I wrote about it a couple of times without any input from them.

TenMarks offers a free online mathematics program designed to supplement your in-classroom mathematics instruction. The free TenMarks program covers materials for students in grades two through ten. In the program there are more than 2,000 video lessons available to students to view on demand. Teachers can use the TenMarks program to assign lessons and problems to individual students or to an entire class. Teachers can track the progress of individual students and the progress of an entire class. Watch the video below to learn more about the free TenMarks mathematics program for your classroom.

One of the questions that I’m often asked about free services is, “how can we know it will stay online and free?” While I can never answer that definitively (see Ning as example of a company changing policies) I can pass along the information that TechCrunch reported TenMarks as recently receiving $3million in venture capital. So hopefully, that keeps TenMarks going for a while.