Linear functions are used to model and analyze the quantitative relationships of real-world applications. In this unit, students develop an understanding of the connections among slope, constant rate of change, direct variation, and linear functions. They interpret the meanings of slope and y-intercept in relation to a situation presented in a problem. These concepts provide a foundation for further study of linear and non-linear functions in subsequent units and courses. The purpose of this unit is to further students’ understanding of relationships between two variable quantities. Students investigate connections among numeric, graphic, and algebraic representations of linear functions. They analyze the use of linear functions in interpreting real-world applications.
Students write linear equations using both point-slope form and slope-intercept form and learn multiple methods of graphing linear equations. They investigate lines of fit for relationships between two variable quantities. Students graph linear inequalities in two variables and examine how the nature of a real-world situation could limit the solutions to discrete points and/or to points in a single quadrant.
Unit 3 is a five-week unit typically taught in November and December.
Unit 3 Standards for Algebra 1(PDF)
Explanation of what your child should understand by the end of each unit (enduring understandings), how he/she will get to that understanding (essential questions), and how he/she will be evaluated (indicators).
Content map for Algebra 1 Unit 3 (PDF)
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