This Montessori-style material illustrates the algebraic identity:
(a+b)2=a2+2ab+b2
The wooden board is divided into four distinct sections, color-coded and labeled to represent:
a2a^2a2
b2b^2b2
ababab (appearing twice as 2ab2ab2ab)
Through hands-on arrangement and observation, children gain a clear, visual understanding of square expansion and the geometric proof of binomial squares.
Material: Wood and painted components
Dimensions: 18 × 18 × 2.5 cm
Educational Purpose:
Demonstrates the binomial square formula
Reinforces algebra through geometry
Builds foundational understanding for higher-level math
Perfect for use in elementary or middle school math classrooms.