THE BULGE – Creating Optical IllusionsStudents use coloured pencils and The Bulge worksheet to create an optical illusion of 3-dimensional spheres on a 2-dimensional surface.
Students use coloured pencils and The Bulge worksheet to create an optical illusion of 3-dimensional spheres on a 2-dimensional surface.
Supplies:
- Crayola Coloured Pencils - 24 Count
- Crayola Scissors
- Rulers
- Erasers
- Pencils
- The Bulge Worksheet - 1 per student
Steps:
1
- Follow the instructions on The Bulge worksheet. (Downloads - BULGE.pdf)
- Cut out the circles to use as tracers.
- Decide how many circles you want to use in your design.
- Arrange the circles in the square and use a pencil to trace around them.
2
- Use a ruler to draw horizontal and vertical lines to connect the dots on the sides of the square.
3
- When you come to the circle gently curve the lines as if you are moving over the surface of a sphere.
4
- Once all the lines are drawn you may want to go back and double them.
5
- Colour in the spaces using a variety of coloured pencil techniques.
Subjects:
Language Arts,
Mathematics,
Visual Arts
Grades:
Grade 4,
Grade 5,
Grade 6,
Grade 7,
Grade 8
