# Lesson 4 Points and Lines All Around

Let’s find parallel and intersecting lines all around us.

## Warm-up Which One Doesn’t Belong: Four-sided Shapes

Which one doesn’t belong?

## Activity 1 Spot Lines and Line Segments

## Problem 1

Here is a map of a neighborhood in Staten Island, New York.

On the map, find and label the following items:

4 line segments of different lengths

3 pairs of parallel lines

2 pairs of lines that are not parallel

(Consider using different colors for the different types of lines.)

## Problem 2

In the words WHALE and JOY,

which letter has:

No parallel segments?

Exactly one pair of parallel segments?

More than one pair of parallel segments?

Only one segment?

## Problem 3

If you have time… Which does the uppercase alphabet use more: parallel segments or intersecting segments?

## Activity 2 Draw and Design with Lines

Draw a sketch of a part of our classroom and be sure to include:

at least 3 pairs of parallel line segments

intersecting line segments that make square corners

intersecting line segments that don’t make square corners

Trade sketches with a partner and find the specified lines in each other’s sketches.

Here are some symbols and logos that you may recognize. All of them have intersecting and parallel line segments.

Design a logo with at least 8 parallel segments and 8 intersecting line segments.

Use a ruler for any straight parts of your logo.

## Practice Problem

## Problem 1

Which segments of the letter Z are a pair of parallel lines? Draw the lines.

Sketch a line that is parallel to the third segment in the Z.