Putting Math to Work
Type of Unit: Problem Solving
Students should be able to:
- Solve problems with rational numbers using all four operations.
- Write ratios and rates.
- Use a rate table to solve problems.
- Write and solve proportions.
- Use multiple representations (e.g., tables, graphs, and equations) to display data.
- Identify the variables in a problem situation (i.e., dependent and independent variables).
- Write formulas to show the relationship between two variables, and use these formulas to solve for a problem situation.
- Draw and interpret graphs that show the relationship between two variables.
- Describe graphs that show proportional relationships, and use these graphs to make predictions.
- Interpret word problems, and organize information.
- Graph in all quadrants of the coordinate plane.
As a class, students use problem-solving steps to work through a problem about lightning. In the next lesson, they use the same problem-solving steps to solve a similar problem about lightning. The lightning problems use both rational numbers and rates. Students then choose a topic for a math project. Next, they solve two problems about gummy bears using the problem-solving steps. They then have 3 days of Gallery problems to test their problem-solving skills solo or with a partner. Encourage students to work on at least one problem individually so they can better prepare for a testing situation. The unit ends with project presentations and a short unit test.
- Middle School