Limited classroom time available in middle school mathematics classes forces teachers to choose between assisting students' development and assessing students' abilities. To help teachers make better use of their time, we are integrating assistance and assessment by utilizing a web-based system, ASSISTment, that will offer instruction to students…

Instruction gains value when measurement shows that objectives have been achieved and learning has occurred. Making the measurement an integral part of class activity allows the identification of problems and consequent improvements even while the course is ongoing. Learner-centered active assessment both provides direct objective measurement of…