Jl. of Computers in Mathematics and Science Teaching (2013) 32(3), 337-352 Collaborative Middle School Geometry Through Blogs and Other Web 2.0 Technologies MD MOKTER HOSSAIN The University of Alabama, Tuscaloosa, USA mokter@gmail.com LYNDA R. WIEST University of Nevada, Reno, USA wiest@unr.edu This paper explores the use of blogs, a simple application of Web 2.0 technologies, in middle school geometry instruc- tion. Speciically, it provides an overview of the interactive features of Web 2.0 technologies and the feasibility of using Web 2.0 technologies in geometry teaching and learning, as well as a proposed model for creating a collaborative envi- ronment using a blog, a free and simple Web 2.0 application in geometry instruction. Incorporation of Web 2.0 technolo- gies into today’s classrooms builds on student interests and knowledge. Further, the interactive nature of these technolo- gies lends itself well to collaborative learning, which moti- vates students, creates a “safer” learning environment, and enhances knowledge and skills. Technology has been a powerful engine in mathematics teaching and learning over the past few decades throughout the world. In the Unit- ed States it is included as one of six principles in the National Council of Teachers of Mathematics’ (NCTM; 2000) Principles and Standards for School Mathematics. The NCTM encourages teachers and students to use technology to broaden and deepen their mathematics understanding. It states, “In mathematics-instruction programs, technology should be used widely and responsibly, with the goal of enriching students’ learning of