Mastering the skill of measuring angles with a protractor takes time and
repeated practice. The sites below are specifically selected to provide
extra practice in skills related to using the protractor.
Above all, remember...
"A measurement tool is only as good as the brain that is using it." THINK!
This link opens a game which requires the player to make a visual
estimate of an angle's size. Be sure to use benchmarks like 90
degrees to help you do well!
Alien Angles
This link gives an angle and already has the protractor set
properly on the vertex. The protractor can only be rotated, not
slid, so there is less room for error.
Beginning Measurement
This site has nice features like tutorials, and options for angle
size, etc. The protractors here can be both rotated and slid, so
I recommend using this site only when you are ready.
Many Ways to Practice
Use your estimation skills to tell the number of degrees needed to
shoot
the spacecraft.
Estimating Angles