
 Resource ID: GM1L12
 Grade Range: 9–12
 Subject: Math
Constructing and Justifying Statements about Geometric Figures
Students will distinguish between undefined terms, definitions, postulates, conjectures, and theorems and investigate patterns to make conjectures about geometric relationships.

 Resource ID: GM1L14
 Grade Range: 9–12
 Subject: Math
Using Counter Examples to Disprove Statements That Are False
Given statements about a geometric relationship, the student will use counter examples to disprove statements that are false.

 Resource ID: GM1L15
 Grade Range: 9–12
 Subject: Math
Using Inductive Reasoning to Formulate Conjectures
Students will practice identifying the converse, inverse, and contrapositive of conditional statements.

 Resource ID: GM1L13
 Grade Range: 9–12
 Subject: Math
Using Logical Reasoning to Prove Statements are True
Given statements about a geometric relationship, the student will distinguish between the undefined terms, definitions, postulates, conjectures, and theorems to prove the statements are true.

 Resource ID: GM2L6
 Grade Range: 9–12
 Subject: Math
Using Properties of Transformations
Given examples of mathematics in the real world, the student will use properties of transformations and their composites to describe and perform transformations of figures in a plane.

 Resource ID: GM2L1
 Grade Range: 9–12
 Subject: Math
Developing Algebraic Expressions to Represent Geometric Properties
The student will investigate patterns to make conjectures.

 Resource ID: GM2L2
 Grade Range: 9–12
 Subject: Math
Developing Algebraic Expressions to Represent Geometric Properties of Polygons
Given numerical and/or geometric patterns that represent geometric properties of polygons, the student will develop algebraic expressions that represent the geometric properties.

 Resource ID: GM2L4
 Grade Range: 9–12
 Subject: Math
Developing Algebraic Expressions to Represent Geometric Properties of Angle Relationships in Polygons
Given numerical and/or geometric patterns that represent geometric properties of angle relationships in polygons, the student will investigate patterns to make conjectures about interior and exterior angles of polygons.

 Resource ID: GM3L7
 Grade Range: 9–12
 Subject: Math
Coordinate Geometry: Parallel and Perpendicular Lines
Given characteristics of two lines, such as slopes and equations, the student will determine whether the lines are parallel, perpendicular, or neither.

 Resource ID: GM3L1
 Grade Range: 9–12
 Subject: Math
Describing and Drawing Cross Sections
Given a verbal and/or pictorial description of the intersection of a plane with various threedimensional geometric figures, the student will describe and/or draw the intersection.

 Resource ID: GM4L2
 Grade Range: 9–12
 Subject: Math
Determining Area: Composite Figures
Given information about composite fiugres, the student will determine the area of composite 2dimensional figures comprised of a combination of triangles and parallelograms using appropriate units of measure.

 Resource ID: GM4L4
 Grade Range: 9–12
 Subject: Math
Determining Arc Length
Given a problem situation involving sectors of circles, the student will use proportional reasoning to solve the problem.

 Resource ID: GM4L9
 Grade Range: 9–12
 Subject: Math
Determining the Surface Area of Cones and Cylinders
Given a problem involving cones or cylinders, the student will find the surface area using appropriate units of measure.

 Resource ID: GM4L10
 Grade Range: 9–12
 Subject: Math
Determining the Volume of Cones and Cylinders
Given a problem involving cones or cylinders, the student will find the volume using appropriate units of measure.

 Resource ID: GM4L14
 Grade Range: 9–12
 Subject: Math
Making Conjectures about Parallel and Perpendicular Lines
The student will verify theorems about angles formed by parallel lines cut by a transversal and apply these relationships to solve problems.

 Resource ID: GM4L7
 Grade Range: 9–12
 Subject: Math
Determining the Surface Area of Prisms and Pyramids
Given a problem involving prisms or pyramids, the student will find the surface area using appropriate units of measure.

 Resource ID: GM4L8
 Grade Range: 9–12
 Subject: Math
Determining the Volume of Prisms and Pyramids
Given a problem involving prisms or pyramids, the student will find the volume using appropriate units of measure.

 Resource ID: GM4L18
 Grade Range: 9–12
 Subject: Math
Making Conjectures About Congruence Transformations
Given geometric figures on the coordinate plane, the student will apply the definition of congruence, in terms of rigid transformations, to identify congruent figures. The student will also identify and distinguish between reflectional and rotational symmetry in a plane figure.

 Resource ID: GM4L15c
 Grade Range: 9–12
 Subject: Math
Making Conjectures About Other Polygons
Given information about the properties of polygons, students will verify theorems about the relationships, including the sum of interior angles, and apply these relationships to solve problems.

 Resource ID: GM5L6b
 Grade Range: 9–12
 Subject: Math
Investigating and Applying Dimension Changes: Area
The student will describe the effects of changing one or more dimensions on the area of a figure.