Course Information 

In Unit 1, students extend their knowledge of areas of rectangles to reason about areas of parallelograms and triangles, and to calculate surface areas. Unit 2 is students’ first formal introduction to ratios, a concept that they will revisit several times throughout the year and in later grades. Students learn several ways to represent ratios—with double number lines, tables, and tape diagrams, which they apply in Unit 3 to convert units, calculate unit rates, and solve problems with percentages. In Unit 4, students reason about two different strategies for dividing fractions and apply their strategies to calculate lengths, areas, and volumes. Unit 5 continues the theme of building on prior knowledge as students formalize strategies for adding, subtracting, multiplying, and dividing decimals. Unit 6 returns to tape diagrams and introduces hanger diagrams as strategies for solving equations. Unit 6 also includes an introduction to exponents and reasoning about equivalent equations. Negative numbers on the number line and the coordinate plane are introduced in Unit 7. The year ends with students making sense of data in Unit 8, including measures of center and spread.