Grades 8-12
Mathematics
Geometry
Standard 5

Students prove triangles are congruent or similar
and are able to use the concept of corresponding
parts of congruent triangles.


 
Resources
Lesson Plans
Assessments

Geometry 
Larson/Boswell/Stiff, 1995,
D. C. Heath and Company

Section References

4.1 Exploring Congruent 
Triangles

4.2 Angles of a Triangle

4.3 Proving that Triangles are Congruent

4.4 More Ways to Prove 
that Triangles are Congruent

4.5 Using Congruent Triangles

4.6 Isosceles Triangles and
Right Triangles

4.7 Extended Application: Constructions

8.1 Exploring Ratios and Proportion

8.2 Problem Solving with Proportions

8.3 Similar Polygons

8.4 Similar Triangles

8.5 Proving that Triangles 
are Similar

8.6 Proportions in Similar Triangles

8.7 Extended Applications: Dilations

Software

EduClip Images 4 -- 
Science, Math, Technology, 
Teach Yourself by Computer Software, Inc. 1995
floppy mac

Specific Textbook 
Web Sites

http://www.glencoe.com/
sec/math/prealg/mathnet/

http://www.eduplace.com/
links/

http://www.eduplace.com/

http://www.hmco.com/
college/mathematics/
index.html

http://www.mcdougallittell
.com/

http://www.hmco.com/

http://www.SRA-4KIDS.com/

General Math 
Reference Sites

http://www.learner.org/
sami/view-category.php3
?category=math

http://www.score.k12.ca.us/

http://henson.austin.apple
.com/edres/curric.shtml

http://school.discovery.com/
schrockguide/index.html

http://www.EDsOasis.org/

http://www.math.com/

http://www.nea.org/grants/
free.html

http://www.wcom.com/
marcopolo/

http://www.udel.edu/sine/

http://dewey.chs.chico.k12
.ca.us/math.html

Free Stuff

http://www.nea.org/
grants/free.html

State/National Math 
Ed Organizations

http://www.nctm.org/

http://www.cde.ca.gov/

Calif. Dept. of Ed. Standards, Assessment, Ed. Reference.

Calculuator Reference Site

http://www.ti.com/
calc/docs/calchome.html



Previously Published Data

1.) Given specific information, students will construct triangles, cut them out, and compare them with their classmates' triangles. 


2.) Students will use the theorems to prove triangles congruent. 
3.) Students will use the theorems to prove triangles similar.


Previously Published Data

1.) Students will prove two triangles congruent. 


2.) Students will prove two triangles similar. 
3.) Students will find the length of the missing sides of triangles after proving the triangles are congruent, by using corresponding parts.