This document discusses parallel and perpendicular lines and provides instructions for drawing them. It defines parallel lines as lines that never intersect and are always the same distance apart. Perpendicular lines intersect at right angles. The document describes 45 and 60 degree set square rulers used to draw parallel and perpendicular lines and provides examples of artists who have used these techniques, including Piet Mondrian, Eusebio Sempere, and Victor Vasarely. Steps are outlined to have students connect dots on paper with rulers to make triangles and then draw parallel lines along the triangles using set square rulers and color pens.

1. PARALLEL AND
PERPENDICULAR LINES

2. TYPES OF LINES

3. PARALLEL LINES
• Two lines on a plane that
never intersect each other.
• They are always the same
distance apart.
PERPENDICULAR LINES
• Perpendicular lines are lines
that intersect at right
angles.

4. 45º AND 60º SET SQUARE
45º SET SQUARE 60º SET SQUARE

5. How to draw paralell lines?

6. How to draw perpendicular lines?

7. Artists use this constructions in their
works of Art
These are some examples:

8. Piet Mondrian

10. Eusebio Sempere. Las Cuatro
Estaciones. 1988. Serigrafía

11. Victor Vasarely
Riu-Kiu-C
1960
Acrylic on canvas –
115 x 115 cm

12. Emilio Gañan

13. Emilio Gañan

14. Task
(Taken from laslaminas.es)
• We need:
– Drawing paper
– Rulers (45º and 60º set square rulers)
– Propelling pencil
– Eraser
– Colour feltpens.

15. 1º: draw dots sprad all over the worksheet. Don’t arrange them in a tidy way.
Do not forget to dray some dots on the edges of the paper

16. 2. Conect each dot with the closer ones with a ruler to create triangles.

17. 3. Use colour felt-tip pens to draw
parallel lines to only one side of
the triangle using the set square
rulers.

18. These are some good
examples
ENJOY IT!

21. Examples from: laslaminas.es