Reflection

This video tutorial explains the concept of reflections in mathematics, focusing on mirror lines, also known as axes of reflection. It covers how to reflect shapes by counting squares and ensuring that reflections are perpendicular to the mirror line. The tutorial also addresses handling diagonal mirror lines and provides tips for visualizing reflections. Practice questions are included to reinforce the two fundamental rules: reflections must be perpendicular to the mirror line, and reflected shapes are equidistant from the mirror line.

What is the mirror line also known as in the context of reflections?

• Line of reflection

• Line of symmetry

• Axis of reflection

• Axis of symmetry

When reflecting a shape, how should the distances be measured in relation to the mirror line?

• Perpendicular to the mirror line

• At any angle to the mirror line

• Parallel to the mirror line

• Horizontally to the mirror line

What is a useful tip for visualizing reflections when the mirror line is diagonal?

• Rotate the page to make the mirror line vertical

• Use a mirror to see the reflection

• Draw a grid over the shape

• Use a ruler to draw the reflection

How should you reflect a point that overlaps the mirror line?

• Ignore the overlap and reflect normally

• Reflect it onto the same side of the mirror line

• Do not reflect the overlapping point

• Reflect it onto the other side of the mirror line

What are the two fundamental rules for reflecting a shape?

• Shapes must be parallel to the mirror line and equal distance from it

• Shapes must be perpendicular to the mirror line and equal distance from it

• Shapes must be diagonal to the mirror line and different distances from it

• Shapes must be horizontal to the mirror line and equal distance from it