The metric system is one of the main topics of this chapter and thus earlier work with the powers of ten are reinforced. Material dealing with area and volume is covered and work with geometry in genearl serves as a great change of pace. The first important topic is a variable, and the second key idea is order of operations. The concept of notation is pivotal. Students will have a great deal of practice with formulas, solve many sentences, and do considerable pattern finding and translating.
Students solve simple sentences involving addition with variables.
This chapter is very important for future work in geometry and trigonometry. The goal is for students to experience the satisfaction of solving a problem unlike any they have seen before. Subtraction is dealt with in equations, and the chapter concludes with work focusing on lines, angles, and the Triangle Sum Property. This chapter features two themes. The second theme is transformations.