Geometry 2

Question 1

What are the different lines of symmetry?

Answer 1

Line of Symmetry
Reflective Symmetry
Rotational Symmetry

Question 2

What is rotational system?

Answer 2

A shape has Rotational Symmetry when it still looks the same after some rotation (of less than one full turn).
Rotational Symmetry Order - write the number of turns

Question 3

What equipment is used to help pupils?

Answer 3

• Tessellation Kit
• Co-ordinate Grids
• Peg Boards
• Mirrors

Question 4

Where do numbers and letters go on a graph coordinate grid?

Answer 4

Letters at that the bottom
Numbers at the side

Question 5

How can u read a grid?

Answer 5

Cross the hallway up the stairs

Question 6

What are the misconceptions?

Answer 6

Lines of symmetry on parallelograms e.g. thinking
there are 4 lines of symmetry in an oblong
• Regular Shapes – rotation – e.g. regular hexagon has 6 lines of symmetry
• Rather than draw a line of symmetry the child reflects in order to create one!
• Flags Symmetry Powerpoint – Beware!

Question 7

What activities can you set up along geometry?

Answer 7

1. Write your full name in capital letters. Show lines of Reflective Symmetry.
2. Look at the road signs and logos. Which have lines of Reflective Symmetry and, if so, how
   many lines?
3. Look at the pattern blocks. Classify them by Order of Rotation

Question 8

What are the different Transformations?

Answer 8

Translation, Reflection and Rotation

Question 9

What is congruence?

Answer 9

Definition – The relationship between two shapes that have all sides and angles the same (and arranged in the same way). Like the rectangle placed lying down and one standing up?

Question 10

What is translation?

Answer 10

Translation is when you slide the shape

Plotting Co-ordinates across 4 quadrants

Question 11

How would you work out translation?

Answer 11

Use squared paper. Draw 10 x 10 1st quadrant. Draw the following shape. (3,5), (4,3), (3,1), (2,3).
Practice translating shape (up, down, left or
right) and then do it by adding the same
amounts on to the x or y co-ordinates.
Translation – 6 units on x axis

Question 12

What is rotation?

Answer 12

Rotation– Anti-clockwise 90
Rotate the shape 90 degrees in the first quadrant from the point of origin
(0,0).

Question 13

What is reflection?

Answer 13

Draw a new shape on 14 x 10 grid and reflect it in the x = 7 mirror line.