Difference between revisions of "Circle as a shape"

Latest revision as of 01:23, 30 October 2021

A circle is the set of all points in the plane that are a fixed distance from a fixed point.

Objectives

Understanding circle as a shape

Estimated Time

30 minutes

Prerequisites/Instructions, prior preparations, if any

Prior knowledge of point, lines, angles, polygons

Materials/ Resources needed

Digital : Computer, geogebra application, projector.
Non digital : Worksheet and pencil
Geogebra files : Introduction to circles.ggb

Download this geogebra file from this link.

Process (How to do the activity)

Draw circle with ‘circle with center and point’ or use the slider
What do you notice, how is the circle formed.
Which point is the centre of the circle ?
Plotting points on the circle, connect these points to the centre of the circle.
What can you say about the segment lengths?
Measure the segment lengths to show they are equal.
Establish center of the circle’ and ‘radius’
Differentiate between circle and region enclosed by a circle.

Evaluation:

By what parameter is the size of a circle defined ?
Bigger the radius, _____________
How do you name a circle ?
Can you draw a circle without knowing the radius ?

Worksheet

File:Circles-introduction Worksheet.pdf

@@ Line 1: / Line 1: @@
-===Name of the activity===
+A circle is the set of all points in the plane that are a fixed distance from a fixed point.
-Brief blurb describing what the activity.  If this has been borrowed from some external web site (for example, a non OER or OER site which had this idea and based on which the activity was developed)
-=== Objectives ===
+===Objectives===
-Content objectives  - what content areas
+Understanding circle as a shape
-Skill objectives - what specific skills
-Classroom objectives - to demo peer learning, to make a classroom resource, etc -
-All these kinds of objectives need not be there for every activity.  And no need to list them as different headings.  This is only for our reference when we are developing activities.
 ===Estimated Time===
+minutes
 === Prerequisites/Instructions, prior preparations, if any ===
+Prior knowledge of point, lines, angles, polygons
 ===Materials/ Resources needed===
+* Digital : Computer, geogebra application, projector.
+* Non digital : Worksheet and pencil
+* Geogebra files :  [https://ggbm.at/gfhrfrrc Introduction to circles.ggb]
+{{Geogebra|gfhrfrrc}}
 ===Process (How to do the activity)===
-How to do the different steps of the activity?
+* Draw circle with ‘circle with center and point’  or use the slider
+* What do you notice, how is the circle formed.
-What kinds of questions you can ask for that activity
+* Which point is the centre of the circle ?
+* Plotting points on the circle, connect these points to the centre of the circle.
-What are the student follow-up activities/ questions you can give?
+* What can you say about the segment lengths?
+* Measure the segment lengths to show they are equal.
+* Establish center of the circle’ and ‘radius’
+* Differentiate between circle and region enclosed by a circle.
-Categories:  (Subject) (Topic) (Sub-concept/topic) (Class 6) (Resource format)
+* '''Evaluation:'''
+# By what parameter is the size of a circle defined ?
+# Bigger the radius, _____________
+# How do you name a circle ?
+# Can you draw a circle without knowing the radius ?
-Example -  (Mathematics) (Triangle) (Area) (Perimeter) (Class 6) (Class 8) (Geogebra) (Video)
+=== Worksheet ===
+[[:File:Circles-introduction Worksheet.pdf]]
+[[Category:Circles]]