Problem solving is one of the main competences we seek to teach students at school for use in their future lives. However, when dealing with mathematical problems, teachers encounter a wide variety of difficulties. To foster students' problem-solving skills, the authors developed "strategy keys." Strategy keys can serve as material to…

One of the most important connections that must be made during the middle school years is the relationship between scientific inquiry and algebraic thinking. Fortunately, there are plenty of ways in which teachers in both mathematics and science can make this intrinsically important association for students. One way is by studying rate of change,…