The circle

Subject: Mathematics

Grade: Lower Secondary

Publisher: YDP

Resource types: Whiteboard presentation

Resource ID: e2316
Description:

At the end of this activity, students should be able to:
recognise parts of a circle: centre, radius, circumference, arc, chord, diameter, sector, segment
- calculate the length of an arc
- calculate the area of a sector
- relate the area of a segment to the area of a sector and of a triangle
- understand the notion of tangent and construct a tangent at a given point
- understand the notion of a common tangent.

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The circle Class activity

Consists of...
The circle as a locus Animation The centre and the ... Animation The centre and the ... Simulation A diameter Animation Chords and diameters Simulation Construction of a c... Animation A circumference Animation The circumference a... Whiteboard exercise The length of the arc Animation Arcs Whiteboard exercise The area of a sector Animation The area of a segment Animation Sectors and segments Whiteboard exercise A point of tangency Whiteboard exercise Construction of a t... Animation Tangents Simulation Drawing the tangent Animation Line that is tangen... Animation Common tangents Simulation Finding the tangent Whiteboard exercise

Relevant to...

Secondary School

Lower Secondary (Grades 7-9)

Mathematics

The circle

52. The circle

YDP SA

Keywords

arc, segment, origin, centre, circle, sector, tangent, circumference, The circle

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