The purpose of this lesson is to introduce the grade 6 math unit on measurement involving angles and polygons.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 4.0: Measurement - Angles and Polygons: Introduction.
The purpose of this lesson is to explore and measure angles.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 4.2: Measurement - Angles and Polygons: Exploring Angles.
The purpose of this lesson is to explore measuring angles using a protractor.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 4.3: Measurement - Angles and Polygons: Measuring Angles.
The purpose of this lesson is to explore drawing angles.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 4.4: Measurement - Angles and Polygons: Drawing Angles.
The purpose of this lesson is to explore naming and sorting triangles by angles.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 6.2: Geometry - Naming and Sorting Triangles by Angles.
The purpose of this lesson is to explore drawing triangles.
Included is a YouTube video to support Grade 6 Blended Learning Math - Unit 6.3: Geometry - Drawing Triangles.
The purpose of this lesson is to learn how to identify and create perpendicular line segments.
Included is a YouTube video to support Grade 7 Blended Learning Math - Unit 8.2: Geometry - Perpendicular Lines.
Students find and calculate the angle that light is transmitted through a holographic diffraction grating using trigonometry. After finding this angle, student teams design and build their own spectrographs, researching and designing a ground- or space-based mission using their creation. At project end, teams present their findings to the class, as if they were making an engineering conference presentation. Student must have completed the associated Building a Fancy Spectrograph activity before attempting this activity.
Students use simple materials to design an open spectrograph so they can calculate the angle light is bent when it passes through a holographic diffraction grating. A holographic diffraction grating acts like a prism, showing the visual components of light. After finding the desired angles, students use what they have learned to design their own spectrograph enclosure.
Students learn about common geometry tools and then learn to use protractors (and Miras, if available) to create and measure angles and reflections. The lesson begins with a recap of the history and modern-day use of protractors, compasses and mirrors. After seeing some class practice problems and completing a set of worksheet-prompted problems, students share their methods and work. Through the lesson, students gain an awareness of the pervasive use of angles, and these tools, for design purposes related to engineering and everyday uses. This lesson prepares students to conduct the associated activity in which they “solve the holes” for hole-in-one multiple-banked angle solutions, make their own one-hole mini-golf courses with their own geometry-based problems and solutions, and then compare their “on paper” solutions to real-world results.
An interactive applet and associated web page that provide step-by-step animated instructions on how to measure angles using a protractor. Specifically, it uses a protractor to measure two angles that form a vertical pair, verifying they have the same measure. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
An interactive applet and associated web page that provide step-by-step animated instructions on how to use a protractor to draw an angle. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.