Why? Stencils are an excellent tool for rapidly reproducing the same design over and over again. The process can be done simply by cutting away from a piece of material like cardboard, plastic, or even paper. Once paint is applied, it moves through the cutout and onto your surface of choice – revealing a sweet design! Stenciling began in the prehistoric period when hands acted as stencils on cave walls. Today intricate stencils are used by many street artists to tell their story in public places.
What else? Stencils make a great tool for visual storytelling. Design a stencil that sends a message to others, and display that message publicly. More curriculum connectors can be found here.
By simply limiting a light source to the size of a pinhole we can begin to understand how both the camera and the human eye work to record light. Experimentations done using camera obscura led to many great discoveries, not the least of which was the invention of photography. Building a camera obscura is as simple as cutting a hole in a box, and can be modified easily to make a pinhole camera that captures photos. Many photographers still use a pinhole lens to give their photos a dreamy look.
What else? Greek mathematicians used camera obscura to determine that light travels in a straight line, helping us to understand the relationship between perspective and angles. More curriculum connectors can be found here.