Download Construction

Warm Up – If you have a laptop
Connect to the S-drive and copy this powerpoint to
your desktop.
My Computer – KL-student (S:) – Teachers – S-T-U – Sturtevant_M –
Outbox – Geometry_1.6.PPTX
Warm Up – Without a Laptop
Everyone else, take out 2 pieces of paper and
with each piece, fold once width-wise and
once length-wise, then draw lines in the
creases on front and back.
Then, one person per table needs to come up
and get a protractor and a compass for
today’s activity.
Correct Assignment #4
Correct 7-21 and #26
Correct Assignment #4
Correct 28, 29, 33-36
Chapter 1.6
Construction
Target: To make basic
constructions using a straightedge
and a compass
Definitions
Construction – Use a straight edge and a
compass to make geometric figures
Straightedge – is a ruler with no marking on it
Compass – Geometric tool used to draw circles
and parts of circles called arcs
Perpendicular Lines-two lines that intersect to
form right angles.
Perpendicular bisector-of a segment is a line
that is perpendicular to the midpoint
Congruent segment
http://www.mathopenref.com/constcopysegment.html
Set up for the Activity
Front of Paper
Draw a line
segment
Draw an
acute angle
Back of Paper
Draw an
angle
slightly
larger than
90º
Draw a line
segment
1
1
3
4
2
2
5
5
Draw 3 line
segments
of similar
length
Congruent Angles
http://www.mathopenref.com/constcopyangle.html
Perpendicular Bisector
http://www.mathopenref.com/constbisectline.html
Angle Bisector
http://www.mathopenref.com/constbisectangle.html
Construct a triangle
given three line segments
http://www.mathopenref.com/consttrianglesss.html
Assignment #5
There is no assignment for tonight, simply
turn in your activity from today into the
folders. Be sure to label it with your name.