1,040
edits
Changes
Jump to navigation
Jump to search
Line 399:
Line 399: − + − + − + + + + − + − + − + + + + + Line 419:
Line 426: +
→Concept #9 Congruent circles
===Notes for teachers===
===Notes for teachers===
===Activity No # 1===
===Activity No # Cutting congruent circles without using compass===
{| style="height:10px; float:right; align:center;"
{| style="height:10px; float:right; align:center;"
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
''[http://www.karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
|}
|}
*Estimated Time: 10 minutes
*Estimated Time: 3 minutes for video and 30 minutes to actually cut.
*Materials/ Resources needed : Laptop, video link.
*Materials/ Resources needed :
# Laptop, video link.
# Cardboard, a stick, nails, scale, pencil.
*Prerequisites/Instructions, if any
*Prerequisites/Instructions, if any
# The students should know what are congruent circles.
*Multimedia resources
*Multimedia resources
*Website interactives/ links/ / Geogebra Applets
*Website interactives/ links/ / Geogebra Applets
{{#Widget:YouTube|id=XWH3ysrfrjM}}
{{#Widget:YouTube|id=XWH3ysrfrjM}}
*Process/ Developmental Questions:
*Process/ Developmental Questions:
#Ask the students to watch the youtube clip
# Ask the students to watch the youtube clip
#Was the compass used here?
# Was the compass used here?
#what types of circles did he cut?
# What types of circles did he cut?
# What type of stick can be used ? (straight)
# How many nails are fixed to the stick and for what purpose ?
# What does the fixed nail depict ?
# What is the trace made by moving line called ?
*Evaluation
*Evaluation
# Were the students able to conclude that there are alternatives for compass?
# Were the students able to conclude that there are alternatives for compass?
*Question Corner
*Question Corner
# Find out which methods are used while drawing circles in rangoli designs ?
===Activity No # ===
===Activity No # ===