Grade 9 Math

SPACE AND SHAPE UNIT

Outcomes E1-E5

INTRODUCTION TO TRANSFORMATIONS

• Coming into the Triangles Unit, we need to remember certain vocabulary.

• In the following game, teams will be matching up definitions with the word list.

• The words we are trying to define are: opposite angles, complementary angles, supplementary angles, translation, rotation, reflection, dilatation, scale, proportion, unique triangle, similar triangle, congruent triangle, equilateral triangle, scalene triangle and isosceles triangle

REMEMBER THOSE WORDS…?

• Property of shapes. A flip is known as a ___________________

DEFINITION 1

•Property of shapes. A turn is known as a ___________________

DEFINITION 2

• Triangles where all the sides are the same length are ____________

DEFINITION 3

• Property of triangles. Triangles that have different shapes and different sizes are known as_______________

DEFINITION 4

• Property of triangles. Triangles that have the same shape and same sizes are known as_______________

DEFINITION 5

• Property of shapes. An enlargement is known as a ___________________

DEFINITION 6

• Property of triangles. Triangles that have the same shape but in different sizes are known as_______________

DEFINITION 7

• ___________________ is when 2 ratios are considered to be the same.

DEFINITION 8

• Triangles where none of the sides are the same are -________________

DEFINITION 9

• Triangles where 2 of the sides are the same are -________________

DEFINITION 10

• A flip, turn, slide or resizing of a pre-image to make an image is called a ________________

DEFINITION 11

• Each person will be given a piece of paper with instructions on it (DO NOT LOOK AT IT)

• We will all be moving in a space, and #1-5 will open their papers, after that #6-10, the #11-15 and so on

• Follow the instructions on your paper

• Keep you instructions secret!

NEW GAME! TRIANGLE DRAMA