
 Resource ID: GM3L6
 Grade Range: 9–12
 Subject: Math
Introduction to Coordinate Geometry
The students will use multiple representations of undefined terms on a coordinate plane to solve problems.

 Resource ID: GM4L3
 Grade Range: 9–12
 Subject: Math
Determining Area: Sectors of Circles
Students will use proportional reasoning to develop formulas to determine the area of sectors of circles. Students will then solve problems involving the area of sectors of circles.

 Resource ID: GM1L18
 Grade Range: 9–12
 Subject: Math
Using Logical Reasoning to Prove Conjectures About Quadrilaterals
Given conjectures about quadrilaterals, the student will use deductive reasoning and counterexamples to prove or disprove the conjectures.

 Resource ID: GM5L4
 Grade Range: 9–12
 Subject: Math
Applying Trigonometric Ratios
Given problem situations involving similar figures, the student will apply and justify triangle similarity relationships such as trigonometric ratios.

 Resource ID: GM1L19
 Grade Range: 9–12
 Subject: Math
Using Logical Reasoning to Prove Conjectures about Circles
Given conjectures about circles, the student will use deductive reasoning and counterexamples to prove or disprove the conjectures.

 Resource ID: GM3L8
 Grade Range: 9–12
 Subject: Math
Coordinate Geometry: Special Segments
The student will derive and use the slope and midpoint formulas to verify geometric relationship that include parallelism and perpendicularity of lines. Then, the student will determine an equation of a line parallel or perpendicular to a given line.

 Resource ID: GM4L15a
 Grade Range: 9–12
 Subject: Math
Making and Verifying Conjectures About Triangles
Given examples of triangles and their component parts, the student will use explorations and concrete models to verify and apply the Triangle Inequality theorem and find the sum of interior angles.

 Resource ID: GM3L9
 Grade Range: 9–12
 Subject: Math
Coordinate Geometry: Length and Distance
Given coordinates of points, the student will use the distance formula to solve problems involving length and distance.