Amazing Angles

   Lately we have been working with angles and using tools called protractors. One of the protractors is called a full circle protractor, it goes from 0 to 360 degrees around the perimeter of the circle. Also there is another measuring tool called the half circle protractor, it measures from 0 to 180 degrees. It is different because when there is an angle to measure that is bigger than 180 degrees, you have to just measure the smaller angle and subtract it from 360 to get your answer.
    An angle is a figure that is made by two line segments or rays that make up an acute angle, obtuse angle,straight angle, right angle or a reflex angle. An acute angle is between 1 and 89 degrees, an obtuse angle is more than 90 but less than 180 degrees. A straight angle is exactly 180 degrees and is 1/2 of a circle. Finally, a reflex angle is more than 180 and less than 360 degrees. 
   We also have been playing a game called "Angle Tangle". Player #1 draws an angle of their choice and player #2 estimates the measure in degrees. Then Player #1 uses a protractor to get the exact measure. Then, using subtraction,  the team finds the difference between the two. 
   The difference is how many points Player 2 earns, so you want to make your best estimate.  Player 1 and 2 keep switching positions and at the end of the round, they add up their scores and whoever gets the LOWEST score, wins!
   In closing, we feel that since we have spent time measuring, drawing, naming, and estimating angles, we have improved a lot in our understanding.
By: Nick and Troy