Ohio Resource Center
 Toothpicks and Transformations: Quadratic FunctionsORC# 128Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 9–11Professional Commentary: How many toothpicks does it take to make an n x n square composed of 1 x 1 squares? The lesson begins with a review of transformations of quadratic functions--vertical and horizontal shifts, and stretches and shrinks....MORE...
 ODE Assessment Item, Grade 10: Identify Graph of Quadratic FunctionORC# 5431Resource InformationResource Type: AssessmentsDiscipline: MathematicsGrades: Grades 8–10Professional Commentary: Students must identify the graph of a quadratic equation. This multiple-choice question is a sample item used in the 2005 Ohio Graduation Test (see Overview of Ohio's Assessment System)....MORE...
 ODE Assessment Item, Grade 10: Identify Equation That Represents a Table of ValuesORC# 5457Resource InformationResource Type: AssessmentsDiscipline: MathematicsGrades: Grades 8–10Professional Commentary: Students must select the equation that represents the relationship between values for x and y shown in a table. This multiple-choice question is a sample item used in the 2004 Ohio Graduation Test (see Overview of Ohio's Assessment System)....MORE...
 Hanging ChainsORC# 7715Resource InformationResource Type: LessonsDiscipline: MathematicsGrades: Grades 9–12Professional Commentary: Both ends of a small chain are attached to a board with a grid on it to form a catenary curve, similar to a parabola. Students choose three points along the curve and use them to identify an equation....MORE...
 NAEP Assessment Item, Grade 12: Find the Roots of an EquationORC# 2067Resource InformationResource Type: AssessmentsDiscipline: MathematicsGrades: Grades 8–12Professional Commentary: Students must solve a quadratic equation whose roots are irrational. This constructed-response question is a sample test item used in grade 12 in the 1990 National Assessment of Educational Progress (see About NAEP)....MORE...