Ohio Resource Center
 Movie LinesORC# 7737Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 8–10Professional Commentary: This lesson provides students with the description of an authentic situation (buying DVDs) and data points that fit that situation. Students graph the line that contains those points; determine its y-intercept, slope, and equation; and interpret the slope and y-intercept in the context of the problem....MORE...
 More Complicated Functions: Introduction to Linear FunctionsORC# 5077Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grade 8Professional Commentary: This lesson helps students who are not already familiar with the slope-intercept form of a linear function, y = mx + b, to analyze how the values of m and b correspond to changes in y as x systematically increases. This analysis helps students identify linear function rules involving two operations....MORE...
 Stressed to the Breaking Point: Multiple-Variable FunctionsORC# 125Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 10–12Professional Commentary: How does the amount of weight that can be supported by a spaghetti bridge relate to the width (number of spaghetti strands) and the length of a bridge? Students gather data comparing the amount of weight that can be supported, the number of strands of spaghetti used, and the length of the bridge....MORE...
 Linearity in the World Around UsORC# 10123Resource InformationResource Type: Content Supports -- Activities and rich problemsDiscipline: MathematicsGrades: Grades 8–10Professional Commentary: Several real-world situations motivate the study of linear functions, their parameters, and behaviors. The contextual situations lead to the abstraction of function and provide tools for understanding and long-term memory....MORE...
 Exploring Linear Functions: Representational RelationshipsORC# 1476Resource InformationResource URL: http://www.nctm.org/standards/content.aspx?id=26790Resource Type: Content Supports -- TechnologiesDiscipline: MathematicsGrades: Grades 9–12Professional Commentary: This site presents a series of explorations using linked graphical and symbolic representations of linear functions. Students investigate the effect that changing the slope (m) has on the graph of a line....MORE...