• Resource ID: GM1L14
• 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
• Subject: Math

### Using Inductive Reasoning to Formulate Conjectures

Students will practice identifying the converse, inverse, and contrapositive of conditional statements.

• Resource ID: GM1L13
• 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
• 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
• Subject: Math

### Developing Algebraic Expressions to Represent Geometric Properties

The student will investigate patterns to make conjectures.

• Resource ID: GM2L2
• 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
• 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
• 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
• Subject: Math

### Describing and Drawing Cross Sections

Given a verbal and/or pictorial description of the intersection of a plane with various three-dimensional geometric figures, the student will describe and/or draw the intersection.

• Resource ID: GM4L2
• Subject: Math

### Determining Area: Composite Figures

Given information about composite fiugres, the student will determine the area of composite 2-dimensional figures comprised of a combination of triangles and  parallelograms using appropriate units of measure.

• Resource ID: GM4L4
• 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
• 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
• 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
• 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
• 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
• 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
• 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
• 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