JoinSolving Solutions: Exploring unknowns through chemistry
Developing middle school students’ problem-solving skills is a common goal of the National Science Education Standards and the Principles and Standards for School Mathematics. The following chemistry activities support the spirit and content of both of these documents. Specifically, students are introduced to one type of chemical bond by developing the integer operation concept of zero pairs. This leads to an activity of combining drops of 0.3 molar (M) solutions to form six different colored precipitates from five solutions.