Transcript Reflect - Mr Barton Maths

Reflections
Transformations
Starter Objective:
Recap on vertical
& horizontal lines.
7
y = 6
6
y = x
5
X = -1
X = 5
4
3
2
y = 1
1
0
1
2
3
4
5
Horizontal lines are y =
6
7
Vertical lines are x =
Name the line
Lesson Objective:
Reflect shapes in a
given mirror line.
Reflect this triangle in the line x = 5
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflect this rectangle in the line x = 1
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflect this hexagon in the line x = 4
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflect this rectangle in the line y = 2
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflect this trapezium in the line y = 1
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflect this trapezium in the line y = x
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check using tracing paper or a mirror
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Name the line
7
y = x + 4
6
5
4
y = x
y = x + 1
y = -x + 3
3
2
1
y = -x
0
1
2
3
4
5
6
7
Reflect this triangle in the line y = - x
6
5
4
3
2
1
-3
-2
-1
0
-1
-2
1
2
3
4
Check image using tracing paper
6
5
4
3
2
1
-3
-2
-1
0
-1
-2
1
2
3
4
Reflect object in the line y = - x + 6
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Check image using tracing paper
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Challenge: Reflect the triangle in the y axis,
then reflect that triangle in the line y = x.
5
4
3
2
1
-3
-2
-1
0
-1
-2
1
2
3
4
Challenge: Reflect the triangle in the y axis.
Then reflect that triangle in the line y = x.
y = x
5
4
3
2
1
-3
-2
-1
0
-1
-2
1
2
3
4
Challenge: Then reflect that triangle in
the line y = x.
5
y = x
4
3
2
1
-3
-2
-1
0
-1
-2
1
2
3
4
Lesson Objective:
Describing reflections.
Draw and name
the mirror line.
Draw in the mirror line and describe the reflection
Reflection in the line x = 1
Draw in the mirror line and describe the reflection
Reflection in the line y = 2
Draw in the mirror line and describe the reflection
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Reflection in the line y = 3
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Draw in the mirror line and describe the reflection
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Reflection in the line x = 5
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Draw in the mirror line and describe the reflection
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Reflection in the x axis ( the line y = 0 )
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Draw in the mirror line and describe the reflection
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Reflection in the y axis ( the line x = 0 )
y
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
x
Draw in the mirror line and describe the reflection
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Reflection in the line y = x
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
Draw in the mirror line and describe the reflection
7
6
5
4
3
2
1
-6
-5
-4
-3
-2
-1
0
1
2
Reflection in the line y = - x
7
6
5
4
3
2
1
-6
-5
-4
-3
-2
-1
0
1
2