Download Geometry Lessons

Angle Sum of Any Triangle 5:5
I can identify the sum of the angles of any triangle as 180 degrees and use the angle
sum theorem to find the measure of unknown angles.
http://www.youtube.com/watch?v=IxxvukI9c_o
Angle Sum of any Triangle
http://www.mathsisfun.com/proof180deg.html examples
Scroll down YOUR TURN: 10 problems
Concave and convex Polygons 5:6
I can identify a geometric figure as a polygon, distinguish between the characteristics of
regular polygons and classify or name polygons according to the number of sides.
Concave Polygon
Convex Polygon
Polygon
Regular Polygon
http://teachers.cpcsc.k12.in.us/jstanley/websites/Polygon%20Webquest.htm
Constructing Perpendiculars 5:7
I can construct a perpendicular to a line from a point not on the lines, construct a
perpendicular to a line from a point on the line, and construct a perpendicular bisector of
a line segment.
http://www.youtube.com/watch?v=0wxrjoHDGAM
constructing a perpendicular to a point on the line
Altitudes, angle bisectors, and medians 5:8
I can locate and identify the point where a triangle’s altitudes meet as its orthocente and
locate and identify the point at which the angle bisector of a triangle meet as its incente.
Students will be able to locate and identify the point at which the medians of a triangle
meet as its centroid.
http://www.cliffsnotes.com/math/geometry/triangles/altitudes-medians-and-anglebisectors
cliff notes
http://www.pinkmonkey.com/studyguides/subjects/geometry/chap2/g0202401.asp
http://www.ixl.com/math/geometry/identify-medians-altitudes-angle-bisectors-andperpendicular-bisectors
Quiz