Nice set of applets that let students explore fraction understanding from multiple perspectives and models. I love that they use a variety of models for fractional development, including bars (multiple versions), sets, and linear. From the site: "Why Fractions? Fractions are one of the earliest stumbling blocks for students in math. Our goal is building conceptual understanding in fractions as a basis for comprehension in all later topics."
Instructional strategies determine the approach a teacher may take to achieve learning objectives. Five categories of instructional strategies and explanation of these five categories can be found within this site.
Great article on looking at test preparation differently. It's not about answering a lot of questions similar to the ones on the test, but about learning processes that help students understand how to garner information from text/problems, etc.