Centisimal Frame & Instrument for Measuring Angles.
This material is used with the Fraction Circles to demonstrate how angles are measured in degrees.
The Centisimal Frame is a thick metal plate with a recessed circle for positioning the fraction piece to be converted to a decimal, and is calibrated from 0 to 100.
The Instrument For The Measurement Of Angles is a thick metal plate calibrated in 360 degrees with a recessed circle for positioning a fraction piece to be measured.
Item Number – CHM2011