This circle sector set is designed to demonstrate the division of a whole into fractional parts. The model has a minimum diameter of 300 mm and features elements equipped with fasteners; a magnetic base version is also permitted for convenient whiteboard use. The collection includes 24 sectors in total, representing fractions such as 1/2 (2 sectors), 1/3 (3 sectors), 1/4 (4 sectors), 1/5 (5 sectors), 1/6, and 1/12. To help students understand the relationships between different mathematical notations, each sector is clearly marked with its ordinary fraction, decimal fraction, and percentage value.
