1-7 Constructions
Chapter 1 Tools of Geometry
©Tentinger
Essential Understanding and
Objectives
 Essential Understanding: You can use special

geometric tools to make a figure th...
Iowa Core Curriculum
 Geometry:
 G.CO.12 Make formal geometric constructions

with a variety of tools and methods (compa...
Definitions
 Straightedge: a ruler with no markings on it
 Compass: geometric tool used to draw circles and

parts of ci...
Making Constructions
 Home Page:

http://www.mathopenref.com/tocs/constructionsto
c.html
 Congruent Segments:
http://www...
More Terms
 Perpendicular Lines: two lines that intersect to

form a right angle
 Perpendicular Bisector: a line, segmen...
More Constructions
 Perpendicular Bisector:

http://www.mathopenref.com/constbisectline.html
 Angle Bisector:
http://www...
Homework
 Worksheet – In class
Upcoming SlideShare
Loading in …5
×

Geometry 1-7 Constructions

577 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
577
On SlideShare
0
From Embeds
0
Number of Embeds
9
Actions
Shares
0
Downloads
11
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Geometry 1-7 Constructions

  1. 1. 1-7 Constructions Chapter 1 Tools of Geometry ©Tentinger
  2. 2. Essential Understanding and Objectives  Essential Understanding: You can use special geometric tools to make a figure that is congruent to an original figure without measuring. This method is more accurate than sketching and drawing  Objectives  Students will be able to  Make basic constructions using a straightedge and a compass
  3. 3. Iowa Core Curriculum  Geometry:  G.CO.12 Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.
  4. 4. Definitions  Straightedge: a ruler with no markings on it  Compass: geometric tool used to draw circles and parts of circles called arcs  Construction: geometric figure drawn using a straightedge and a compass.
  5. 5. Making Constructions  Home Page: http://www.mathopenref.com/tocs/constructionsto c.html  Congruent Segments: http://www.mathopenref.com/constcopysegment. html  Congruent Angles  http://www.mathopenref.com/constcopyangle.html
  6. 6. More Terms  Perpendicular Lines: two lines that intersect to form a right angle  Perpendicular Bisector: a line, segment, or ray that is perpendicular to the segment at its midpoint  Angle Bisector: a line, segment, or ray that splits an angle into two congruent parts
  7. 7. More Constructions  Perpendicular Bisector: http://www.mathopenref.com/constbisectline.html  Angle Bisector: http://www.mathopenref.com/constbisectangle.ht ml
  8. 8. Homework  Worksheet – In class

×