Sit in the chair and draw the miniature outlines of various scenery or people around you using the marker provided. View any object away from the glass plate through the hole provided and trace the outline of the object on the glass plate using a chalk.

What did you observe? 
When the drawing is complete, you get a small reduction image of the object or person seen through the hole.

The science behind it :
As light rays expand through conical shape, we are able to get reduction scale images of objects at distance.