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How to make a Sextant 1. Gather your materials: piece of construction paper, pen or pencil, protractor, scissors, string, and a straw. 2. Place the protractor on top of the sheet of construction paper and trace the shape. 3. Cut out the semicircle that you traced. 4. Cut that into two halves 5. Using the protractor, line up the top of the paper with the top line of the protractor (0 and 90 degrees) 6. Trying not to move the lined up protractor, mark your paper every 10 degrees to give you 0 to 90. 7. Mark each of the markings you drew to the corresponding degree. 8. Tape your straw to the paper lining it up with the top line of 0 and 90 degrees. 9. Tie your string to the paper clip. 10. Tape the string to the center of the straw/ paper. 11. Try it out; look at an object in the room and mark the degree at which you were looking at it.