A solid foundation in mathematics is beneficial not only for individuals' concurrent and later academic achievement, but also for future career success and financial stability. Rational number knowledge plays a pivotal role in mathematical success, yet it is often regarded as a challenging area to grasp comprehensively. The dissertation aims to…

Math achievement is critically important to the changing global economy. In order to be successful, students must develop a strong foundation in mathematics early in their school careers. But the training elementary teachers receive doesn't always prepare them to teach math well, and math anxiety can keep both students and teachers from reaching…