Children learn important lessons in surface geometry with these extensive constructive triangle boxes.

By putting together two triangles of equal length edges, various quadrilaterals are formed. 

This material provides extensive learning opportunities.

Age recommendation
From 4 years

Learning objectives: 
Essential preparation for geometry
Making figures by assembling practices fine-motor control
Word lessons

Self-correction: 
When assembled, the black lines are of the same length.

Material: 
5 boxes with triangles all made of wood.

Environment & Safety: 
High-quality wood from environmentally friendly plantations
CE tested, testing protocols for SGS EN71 and DIN