Benchmark angles

The first instance of  is under the 4th Grade Math Mission. This exercise increases experience and comfort with the standard angles that one sees in mathematics.

Types of Problems
There are four types of problems in this exercise:


 * 1) Measure of the angle: This problem has and angle drawn and the student selects the correct measure of the angle from a set of multiple choice possibilities.BA1.png
 * 2) Which angles measures?: This problem gives a number and asks the student to select which of the pictures is open to that angle. It does not always use just an angle, but it will sometimes have polygons as the multiple choice options.BA2.png
 * 3) Label all the angles: This problem has a shape drawn and the student selects the measure of all the angles in particular diagram.BA3.png
 * 4) Real life angles: This problem describes various real-life scenarios and asks the student to recognize what angles are formed in the particular situation.BA4.png

Strategies
This exercise is medium to get accuracy badges because you have to be careful on some of the angles that are close to each other. It is medium to get speed badges because many of the problems take a fair amount of time to read and think about, but they do repeat fairly often.


 * 1) The selection problems are rarely (if ever) NONE OF THESE.