large triangle compasses protractor plastic material teacher teaching aids primary and secondary school mathematics geometry drawing suit 大号三角圆规量角器 塑料材质教师教具 中小学数学几何绘图套装

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Full set of large triangular compass and protractor, for teacher demonstrations.

Thickened plastic, clear markings, stable and durable.

The triangle ruler has a handle, the compasses have suction pads for grip, and the protractor is precise.

Resolve the challenges of difficult blackboard drawing and reflective scales.

With CE certification, safe HUANBAO.

Essential for geometry teaching in primary and secondary schools, it makes classroom demonstrations more efficient and student understanding easier.