A beech wood tray with 4 boxes. One box containing 5 sets of negative bead stairs, one box containing 5 sets of colored bead stairs, one box containing 23 golden ten bars and one box containing one black and white bead stair.
Set of 2 black wooden plates measuring 14 x 14 x 1 cm.
The Instrument For The Measurement of Angles is calibrated in 360 degrees for positioning a fraction piece from our 4.45 Fraction Circles to demonstrate how angles are measured in degrees.
The Centisimal Frame is calibrated from 0 to 100, and is used with 4.45 Fraction Circles to demonstrate how fractions may be reduced to decimal fractions.