1 / 8

Parts of a circle

Differentiating the environment. Parts of a circle. Learning intention : Today we will be learning about the parts of a circle. We will discover circles outside the classroom. We will paly a game with the dartboard.

haroun
Download Presentation

Parts of a circle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Differentiating the environment Parts of a circle

  2. Learning intention: Today we will be learning about the parts of a circle. We will discover circles outside the classroom. We will paly a game with the dartboard. Success criteria: I will be successful if I could label the parts of a circle correctly and if I could identify each part and its definition.

  3. Circles have no beginning or end. They represent the eternal whole and in every culture they are very important representing the sun, the earth, the moon, the universe, and other celestial objects. Circles are used to suggest familiar objects such as wheels, balls and many kinds of fruit. They have free movement and can roll. Their movement suggests energy and power. Their completeness suggests the infinite, unity, and harmony. Circles protect, they endure, they restrict. They offer safety and connection. Circles suggest community, integrity, and perfection.

  4. The diameter is a chord that passes through the centre of a circle • The radius is the distance from the centre of the circle to any point on its perimeter. • The circumference of a circle is the perimeter of the circle. • A sector is the part of a circle between two radii. • A chord of a Circle is a line drawn between two points on a circle. • A segment is the part of a circle that is between a chord and the circumference. • An arc is a part of the circumference. • A tangent is a line that • touches the circle at only one point. • A semicircle is a half of a circle.

  5. Find the perimeter (circumference) Pi is pronounced the same as the PIE you eat. The circumference is the perimeter of the circle. It means the distance around the outside. • The symbol used to represent Pi is p. p = 3.14 Circumference = p x diameter C = p D Or C = 2p D

  6. Activity 1 We are going outside to play with the dartboard Brian Gamlin, a British carpenter, devised the current arrangement of numbers on dartboard back in 1896. The numbers are in the following order, going clockwise, starting at the top: 20, 1, 18, 4, 13, 6, 10, 15, 2, 17, 3, 19, 7, 16, 8, 11, 14, 9, 12, 1nd 5. Why this particular order?

  7. 20, 1, 18, 4, 13, 6, 10, 15, 2, 17, 3, 19, 7, 16, 8, 11, 14, 9, 12, 1 and 5.

More Related