Reflections With Mirrors
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Rubalcaba, Antoinette Inter-American Magnet School
Students will be able to define reflection.
Students will explain the laws of reflection.
Four to five different texture surfaces, flashlight, paper, carbon
paper, candles, pins, protractors, kaleidoscopes, coins, half gallon
milk cartons, single edge blades, wood, rubber bands, 8x10 cardboard
and two mirrors per student.
Opening: flash a light beam on different surfaces to show reflection.
Students read a handout with reverse writing using mirrors.
I. Students locate the image of a candle by means of parallax by
placing a second candle behind the mirror and lining up the images.
II. Using pins in front of a mirror, students construct the incident
ray, the reflected ray and the normal.
III. Locating image position by using angles of reflection.
Students construct rays of reflection by sighting the image of a pin
from the left and right sides of the pin. They then draw lines along
the rays of reflection extending them beyond the mirror line until
IV. Students find the number of images reflected by two mirrors when
placed at different angles.
V. A periscope is constructed using a half gallon milk carton, two
mirrors, and a single edge blade.