Students will use technology to find the line of best fit. Lesson 1 Costs of Higher Education Using data about average salary and level of education, students learn to set appropriate scales for drawing graphs. Students use a strand of spaghetti to estimate the line of best fit. Students investigate the relationship between slope, arithmetic growth, and common difference. Lesson 3 Body Graphing Students physically act out being coordinates on a line.
Students investigate intercepts, slope, parallel and perpendicular lines.
A Business Venture Students investigate increasing and decreasing lines and zero and undefined slopes. Lesson 5 The Bouncing Ball Students collect data for use in examining linear behavior and making predictions. They learn to distinguish between dependent and independent variables. Lesson 7 Driving Us Crazy Students determine that slope is a constant along the graph of a linear equation. Students use a graphing calculator to display data and determine a formula for the line of best fit.