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?

  1. quadrilateral
  2. trapezoid
  3. trapezoid
  4. rhombus

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.)

photo of a map. Please ask for further assistance

Problem 2

In the words WHALE and JOY,

image of capital letters spelling out the words Whale Joy

which letter has:

  1. No parallel segments?

  2. Exactly one pair of parallel segments?

  3. More than one pair of parallel segments?

  4. 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

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

    1. at least 3 pairs of parallel line segments

    2. intersecting line segments that make square corners

    3. intersecting line segments that don’t make square corners

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

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

    4 drawings of logos and symbols. from left to right, peace, recycle, mitsubishi, triangular logo.

    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.

image of the letter z