Angle Measuring, measure the angles in a triangle and add them up - what do you notice? A 4th grade geometry worksheet
Angle & Protractor Worksheets:
Wixey Digital Angle Gauge (WR300) - Rockler Woodworking Tools.
An Armillary sphere, or advanced angle measurer for determining equatorial or ecliptical coordinates of stars...
Circle Theorems - Challenging puzzles using a variety of theorems and properties to find missing angle measures
Math Made Easy: Measuring Angles (part 1)
such a good idea! I wish i'd known this when my 4th grade student was learning angles!!
Great tool for teaching how to measure angles with a protractor. There many other tools as well.
Bridge City Tool Works CT-2 Squarevelevel, TB-1 T Bevel, CT-4 Angle Divider.