Geometry is the branch of mathematics which has to do with shape, relative position, and size of figures, as well as the properties of space. Topology is the branch of mathematics which involves the properties of geometric figures or other solid things which are not changed by bending or stretching. Because of their frequent intersection, we look at them together, as one subject.

### Regular Blogs

Created for homeschoolers, this weblog addresses various levels of geometry, offering teaching ideas, worksheets, and reviews as well as news.

http://homeschoolmath.blogspot.com/

Shares mathematics games as a teaching tool. The math ranges from preschool to pre-calculus, and it has a hefty geometry section.

http://letsplaymath.net/

A former math teacher maintains this blog, which helps to teach students geometry and trigonometry, along with other math topic, in this interactive venue.

http://mathgoodies.blogspot.com/

Without Geometry, Life if Pointless

Chronicles the author's attempt to create an alternative sixth grade curriculum which addresses pervasive negative attitudes about math as well as low assessment scores. He leans heavily on geometry.

http://www.withoutgeometry.com/