Geometry: Concepts and Skills

This correlation lists the recommended Gizmos for this textbook. Click any Gizmo title below for more information.

1: Basics of Geometry

1.1: Finding and Describing patterns

Finding Patterns

2: Segments and Angles

2.4: Vertical Angles

Investigating Angle Theorems - Activity A

2.5: If-Then Statements and Deductive Reasoning

Conditional Statement

4: Triangle Relationships

4.1: Classifying Triangles

Classifying Triangles

4.2: Angle Measures of Triangles

Triangle Angle Sum - Activity B

4.3: Isosceles and Equilateral Triangles

Isosceles and Equilateral Triangles

4.4: The Pythagorean Theorem and the Distance Formula

Distance Formula - Activity A
Geoboard: The Pythagorean Theorem
Pythagorean Theorem - Activity A

4.5: The Converse of the Pythagorean Theorem

Pythagorean Theorem - Activity B

4.7: Triangle Inequalities

Triangle Inequalities

5: Congruent Triangles

5.2: Proving Triangles are Congruent: SSS and SAS

Proving Triangles Congruent

5.4: Hypotenuse-Leg Congruence Theorem: HL

Congruence in Right Triangles

5.7: Reflections and Symmetry


6: Quadrilaterals

6.3: Showing Quadrilaterals are Parallelograms

Parallelogram Conditions

6.4: Rhombuses, Rectangles, and Squares

Classifying Quadrilaterals - Activity B
Proving Triangles Congruent

7: Similarity

7.1: Ratio and Proportion

Beam to Moon (Ratios and Proportions)

7.2: Similar Polygons

Similar Polygons

7.5: Proportions and Similar Triangles

Perimeters and Areas of Similar Figures

7.6: Dilations


8: Polygons and Area

8.2: Angles in Polygons

Polygon Angle Sum - Activity A

8.3: Area of Squares and Rectangles

Rectangle: Perimeter and Area

8.4: Area of Triangles

Area of Parallelograms - Activity B

8.5: Area of Parallelograms

Area of Parallelograms - Activity A

8.7: Circumference and Area of Circle

Circle: Circumference and Area

9: Surface Area and Volume

9.2: Surface Area of Prisms and Cylinders

Surface and Lateral Area of Prisms and Cylinders

9.3: Surface Area of Pyramids and Cones

Surface and Lateral Area of Pyramids and Cones

9.4: Volume of Prisms and Cylinders

Prisms and Cylinders - Activity B

9.5: Volume of Pyramids and Cones

Pyramids and Cones - Activity B

10: Right Triangles and Trigonometry

10.1: Simplifying Square Roots

Simplifying Radicals - Activity B

10.4: Tangent Ratio

Tangent Ratio

10.5: Sine and Cosine Ratios

Sine and Cosine Ratios - Activity B

11: Circles

11.5: Inscribed Angles and Polygons

Inscribing Angles

11.6: Properties of Chords

Chords and Arcs

11.7: Equations of Circles


Content correlation last revised: 9/10/2009