Geometry
Students in fourth grade begin to understand and master the geometrical concepts of angles and their measurement. They also explore shapes and their relationship in space as they are reflected, rotated, and translated.
Document Downloads
• Angles
○ Naming Angles: A B
○ Measuring Angles: A B C
• Translations
○ Reflections: A B C D E
○ Rotations: A B C D E
○ Translations: A B C D E
Online Resources
Angleshapes - This is a wonderful online protractor with differenct measuring activities.
Measuring Angles - Interactive protractor.
Angle Game - Use angels to complete your mission and save the day!
Rotation Symmetry 1 - This web page has a short lesson about rotational symmetry and an interactive window for students to practice identifying objects with rotational symmetry.
Rotational Symmetry 2 - Choose shapes and see how they look when rotated.
Rotational Symmetry 3 - Use mouse and digital paper to trace and rotate shapes.
Pentominos - Use the 12 pentomino combinations to solve problems.
Squirt the Dog - Practice using benchmark angles to make the right kind of turns.
Tangrams - Use all seven Chinese puzzle pieces to make shapes and solve problems.
Transformations: Reflection - Dynamically interact with and see the result of a reflection transformation.
Transformations: Rotation - Dynamically interact with and see the result of a rotation transformation.
Transformations: Translation – Dynamically interact with and see the result of a translation transformation.
Students in fourth grade begin to understand and master the geometrical concepts of angles and their measurement. They also explore shapes and their relationship in space as they are reflected, rotated, and translated.
Document Downloads
• Angles
○ Naming Angles: A B
○ Measuring Angles: A B C
• Translations
○ Reflections: A B C D E
○ Rotations: A B C D E
○ Translations: A B C D E
Online Resources
Angleshapes - This is a wonderful online protractor with differenct measuring activities.
Measuring Angles - Interactive protractor.
Angle Game - Use angels to complete your mission and save the day!
Rotation Symmetry 1 - This web page has a short lesson about rotational symmetry and an interactive window for students to practice identifying objects with rotational symmetry.
Rotational Symmetry 2 - Choose shapes and see how they look when rotated.
Rotational Symmetry 3 - Use mouse and digital paper to trace and rotate shapes.
Pentominos - Use the 12 pentomino combinations to solve problems.
Squirt the Dog - Practice using benchmark angles to make the right kind of turns.
Tangrams - Use all seven Chinese puzzle pieces to make shapes and solve problems.
Transformations: Reflection - Dynamically interact with and see the result of a reflection transformation.
Transformations: Rotation - Dynamically interact with and see the result of a rotation transformation.
Transformations: Translation – Dynamically interact with and see the result of a translation transformation.