SAC Preparation & Completion, Visual Illusions

Session 19 - SAC Preparation
Hand out and run through the SAC with the class - ensure that all students understand what is expected.
Use examples in the SAC and from previous students to highlight what can be included in the photo representation.
Run through a number of ways on how the SAC can be presented:

• poster paper
• booklet
• brochure

Allow the remaining to for students to use cameras and other digital devices to take pictures for their visual representation.

The submission date for the SAC is Friday 23rd of March.

Session 20 - Visual Illusions: Muller Lyer & The Ames Room

SAC's Due! Collect.

Ask student to place the heading Visual Illusions in their workbooks and copy the following down:

Most of the time, perception of the world closely matches the physical environment around us. At times perception is distorted, visual illusions are examples of visual perception distortions. Illusions occur because they create an interpretation of visual information that is inconsistent with the image on the retina. A visual illusion is a misinterpretation of real sensory stimuli.

Look at the Visual Illusions PowerPoint - discuss main ideas and concepts...

Move onto the Muller Lyer Illusion and The Ames Room - watch the following explanation for details...

http://www.youtube.com/watch?v=0kLeEJdRUSw

Once both of the illusions have been discussed students are to complete the following in their workbooks:

* Under the heading of the specific illusion you must provide the following:

• An detailed description of the illusion
• A quick sketch of the illusion
• The reasons why the illusion occurs

Read through the relevant sections of the workbook and complete 'Check Your Understanding 3.' in your workbooks.

Don't forget to have a look at the chalk illusions PowerPoint!