Secondary 2E_Mathematics. Concept of Congruence (congruency). Welcome to the. 1 st E-learning 31 st January 2008. Instructions. Get your Mathematics notebook and worksheet ready before you proceed.
Concept of Congruence (congruency)
Welcome to the
1st E-learning 31st January 2008
We say that shape A “is congruent to” shape B.
In mathematical notation, A B.
objectLet’s observe the motion of these shapes or figures!
Rotation: both object & image are identical
Reflection: both object & image are congruent
Translation: both object & image fit each other exactly.
Read through the worksheet to get an overview of what is needed to complete the given task.
a) Logon to http://nlvm.usu.edu/en/nav/frames_asid_294_g_3_t_3.html?open=activities
and try the three basic activities given.
b) Click on first transform choose
i) Reflection and any shape. Follow the instructions on the right panel to explore the properties.
ii) Translation and any shape. Follow the instructions on the right panel to explore the properties.
iii) Rotation and any shape. Follow the instructions on the right panel to explore the properties.
Before attempting to answer the questions in the worksheet, you are strongly advised to read and go through the activities in the suggested websites.
a) Logon to http://regentsprep.org/Regents/math/congruen/Lcongruent.htm to learn about the definition of congruence.
b) Click to learn more about congruency of triangles.
c) go through L = Lesson, P = Practice on the same URL
d)You could also logon to http://argyll.epsb.ca/jreed/math9/strand3/3203.htm, and read the sections on congruent triangles.
to learn more about tessellation including some of the rules.
Use the information to write your summary.
to use the interactive Tessellation Artist workspace to create your tessellated pattern.
Create your own pattern in your worksheet for submission.
You have come to the end of your e-lesson.
Have a nice weekend!