This is a hidden safari artwork.  For this project, students find a picture of a safari animal and the students turn the picture upside down.  This allows the student to draw the picture without his/her brain really seeing how they are drawing the picture.  After the picture has been drawn, the students trace the drawing with a sky blue colored pencil.  This will allow the picture to show through after the other colors have been added to the picture.  Now, using warm colors, students draw shapes over the whole page to cover up the animal.  Students can use different colors, shapes, and sizes.  This distracts the eye when looking straight at the picture.  After the picture is done, the students can mount the page on a colored piece of construction paper to produce a frame.  Lastly, the students put on their glasses they made earlier and can see their safari animal!
For an extension activity, students can use this same process to practice math.  Students can create math problems or story problems on the paper and cover the page up with shapes and colors.  Then students have to put on their "special" glasses in order to see the problem and solve the problem.  The teacher can put the answers on the board so that students can check their work and correct mistakes.