Post on 18-Dec-2014
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Symmetry
Title new sheet:◦Symmetry
Date: 10/15/09
Get a calculator
Today’s Lesson:
Check Assignment:
Check Assignment:
Check Assignment:
Work one problem from the other side.
More Problems:
When does a shape or pattern have a line of symmetry?
EQ:
When does a shape or pattern have a line of symmetry?
EQ:
Line of symmetry
Figure can be folded into two congruent parts.
vocabulary:
A figure can have more than one line of symmetry
line of symmetry:
Line of symmetry:
Line of symmetry:
Hand out figures to look for lines of symmetry.
Use dotted lines
vocabulary:
ClockwiseCounter-Clockwise
vocabulary:
Rotational symmetry
Figure rotates onto itself in less than a full rotation
vocabulary:
How many times will each figure rotate?
vocabulary:
DiagonalLine connecting any two corners (vertex) not adjacent.
vocabulary:
Diagonal:
Draw diagonals.
Use solid lines.
vocabulary:
chartAssignment:
When does a shape or pattern have a line of symmetry?
EQ:
WarmupsModel Drawing
Assignment: