# Angles

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1. Word cloud
120 seconds
What is an angle?
2. Slide
60 seconds
To understand and calculate a variety of angles
Learning Intention:
Learning Intention:
Success Criteria:
To explain angles based on degree To describe angles based on name To calculate angles in a real-world situation
3. Slide
60 seconds
An angle is the amount of rotation between two lines or planes. Angles can be measured using a protractor or by calculating the ratio of the lengths of two line segments. Angles can be used to solve a variety of problems in mathematics and science.
Identifying and Measuring Angles
4. Slide
60 seconds
Angle: a figure formed by two rays, or sides, with a common endpoint called the vertex. Acute Angle: an angle that measures between 0 and 90 degrees. Obtuse Angle: an angle that measures between 90 and 180 degrees. Reflect Angle: an angle that measures more than 180 degrees
Concepts:
5. Slide
60 seconds
The angle used in most construction is the 90-degree angle, which is also known as a right angle. The angle of the Earth's axis is 23.5 degrees, which is why we experience the seasonal changes we experience on Earth.
Did you know?
6. Open question
180 seconds
Work together in pairs: What type of angle is greater than 90 degrees but less than 180 degrees?
7. Drawings
450 seconds
Brain break: Draw a flamingo balancing on one leg while juggling a fish and a tennis ball
8. Poll
60 seconds
Which angle measures exactly 90 degrees?
• Acute angle
• Obtuse angle
• Right angle
9. Poll
60 seconds
What is the measure of a straight angle?
• 45 degrees
• 180 degrees
• 360 degrees
10. Poll
60 seconds
An angle that measures less than 90 degrees is called:
• Right Angle
• Obtuse Angle
• Acute angle
11. Poll
60 seconds
What type of angle measures more than 90 degrees but less than 180 degrees?
• Reflex Angle
• Obtuse Angle
• Straight Angle