Kungfu math p4 slide20 (lines)pdf

Post on 31-Oct-2014

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Transcript of Kungfu math p4 slide20 (lines)pdf

• Drawing lines with set square and ruler

What will we learn today?

Geometry Lines

Let's recap!

Perpendicular Lines

Definition:

Lines that are at right angles (90°) to each other.

Perpendicular

It means at right angles (90°) to.

How do we label perpendicular lines?

We can draw a little box in the corner.

The little box drawn in the corner, means "at right angles"

Parallel Lines

Definition:

• Lines are parallel if they are always the same distance apart and will never meet.

• They also point in the same direction.

In conclusion, parallel lines are Always the same distance apart and never touching.

Let's practise

line drawing.

Try this out!

Spot the key words

Understand the question requirement

Prepare the instrument

Let’s do it step by step 1. Place the set square as shown.

Let’s do it step by step 2. Place the ruler as shown.

Let’s do it step by step 3. Slide the set square along the ruler.

Let’s do it step by step 4. Make sure the set square touches the point C.

Let’s do it step by step 5. Draw a line passing through point C.

Let’s do it step by step 5. Draw a line passing through point C.

Are you ready to try out the questions?

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