Forget hunting for a tape measure or a protractor. Use your Android phone camera and sensors to handle different types of measurements easily.

While multimedia tools have been slow to penetrate instructional methods in some subjects, the math world is bursting with tales of teaching technologies that visualize concepts, adapt to students’ ...

A protractor is used to draw and measure angles. An angle is the amount of turn between two lines. Angles are measured in degrees with the symbol °. Angles can be labelled with 3 letters (eg DEF) to ...

KAYLA: It’s skatepark building day in the virtual city.Woohoo! ZACH: Did you see my 180?Sweet, dude!Okay, let’s do it. ADA: Building the skatepark is going to require lots of angles.An angle is a ...