This website provides free web-based learning and assessment tools for middle and high school teachers to use with their students. These tools, which include web-served assessments, are aligned with National Standards and Benchmarks in science and mathematics. Resources in this project have been developed and tested by teachers and are based on research into the teaching and learning of math and science. Diagnoser delivers sets of questions as formative assessments to inform learning and instruction rather than assign scores. Students receive feedback on their thinking as they work through their assignment and teachers can access reports on students' thinking related to the assigned content.

This material is based upon work supported by the National Science Foundation under Grant Number REC-0129406.