Significant obstacles prevent large, university-level, introductory physics courses from effectively teaching problem-solving skills. We describe our program for integrating three internet-based "teaching-while-quizzing" tools to address two of these barriers: students' poor math skills and instructors' insufficient grading recourses. We outline our system of math remediation, homework and after-homework quizzes, and mini-practice exams, and demonstrate how it can be incorporated into courses with modest instructor effort.
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