Part of an assignment for a technology/education class is to participate in a listserv--here I am. Another requirement of the syllabus was that educators/students evaluate a web site. I chose the CLIME web site because I like to make effective use of my time; it is a site that I feel has resources that will enhance technology integration in my classroom and thus, as you put it "help children learn math," in "...creative and effective ways." One factor which began to build credibility with me is that you are not selling anything. The ideas and research you share is not 'fluffy' or cute. I'm not impressed when an 'expert' feels it necessary to have their name all over the information they share. Are they promoting themselves or student achievement? Often I encounter the obvious packaged as a new revelation in education, too, and that is annoying. I immediately liked the Traffic Jam Lesson. Although it may seem elementary for seventh and eighth grade Pre-Algebra students, I believe that the activities will create connections to concepts they have experienced. I will add a "foots-on" component by creating the stepping stones outside, using small humans (13 year-olds) as participants and others to record data. Then we'll make a graph. My students want to graph everything. So, thank you for all the work you do that makes my work more effective and enjoyable. One suggestion: A few times on the site I encountered statements or phrases that ended with prepositions and I find that particular grammar error distracting in a professional piece.