Bubbles: 1. First students traced as many different circle shaped objects I could fine!! 2 They added at least two shineys to each bubble 3 Then colored the bubbles using oil pastels, and making sure to leave at least part of the bubble black to make it look transparent
Take a line for a walk - 4th or 5th. Start with sharpie, drawing areas to fill with color/pattern - talk about contrast, how it makes things pop. Implied form (value/space) vs real form (physically 3D). Cut out and paste so it sticks out, radiate lines outward, wandering, concentric, etc.
Tin foil, yarn, cardboard, and sharpies. This makes a cool low relief sculpture. Start by teaching about line variations, and color schemes (monochromatic, analogous, etc.). Cool project for 6-7th grade.