Task+1

Task 1 SG3.2b Measures, constructs and classifies angles (P129) ** Equipment ** : An angle tester, protractor, digital camera You will need to work in pairs.
 * Identifying, measuring and constructing angles **
 * Outcomes: **

** Activities ** : > Use 2 or more of the angles you have photographed and join them together. How close can you get to a straight angle (180  °   ) eg 90   °   + 55   °   = 145   ° > What is the difference between the angle you have made and a straight angle? > You may try this using different combinations of angles. You may use the same angle more than once. > Use 2 or more of the angles you have photographed and join them together. How close can you get to a full rotation (360  °   ) eg 150   °   + 180   °   + 23   °   = 353   ° > What is the difference between the angle you have made and a revolution? > You may try this using different combinations of angles. You may use the same angle more than once.
 * 1)  Find one example each in the classroom or other part of the school of a right angle, an acute angle, an obtuse angle, a straight angle, a reflex angle and a revolution.
 * 2)  Estimate the size of each angle. Record your estimate.
 * 3)  Use your angle tester and a protractor to measure each angle. Record next to the estimate.
 * 4)  Take a photo of each angle with the angle tester in place.
 * 5)  Download the photos and label each one with the name of the angle, your estimate and the actual measurement of the size of the angle. You can also label the object.
 * 6)  On one piece of A4 paper, construct each angle using a ruler and protractor. Scan your work.
 * 7) **  Challenge  **  :
 * 1) **  Challenge  **  :