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SkilloToys
Montessori Sensorial Binomial Squares Box
Montessori Sensorial Binomial Squares Box
Regular price
Rs. 496.00
Regular price
Rs. 522.00
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Rs. 496.00
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Product information
Small wooden box that starts as a colour puzzle and quietly becomes a first algebra lesson. Four flat pieces (a big red square, a small blue square, two black rectangles) fit together to make a larger square, exactly matching the printed pattern on the lid. Assembled, they represent the identity (a+b)^2 = a^2 + 2ab + b^2, years before algebra appears in school books. For ages 3 to 10.
At a glance
- 4 wooden pieces that represent the four areas of (a+b)^2.
- Colour-guided assembly: the lid pattern is the puzzle key.
- Ages 3 puzzle, ages 8 algebra: the same material teaches different depths.
- Eco-friendly paints in red, blue and black.
- Compact wooden box (10 x 10 x 4 cm) fits any Montessori shelf.
- Precedes the Trinomial Square: (a+b+c)^2 extension, also at SkilloToys.
- Made in India; free PAN-India shipping from SkilloToys.
How it compares to skipping the visual algebra step
| Binomial Square | Direct symbol-only algebra | |
|---|---|---|
| Meaning of (a+b)^2 | Physically visible as four areas | A formula to memorise |
| Confidence | Child owns the identity long before school | Anxiety when it first appears |
| Longevity | Ages 3 to 10, deepens with the child | Introduced late, easily forgotten |
| Play value | Genuine puzzle at every age | None |
| Screen time | Zero | N/A |
Why curated by SkilloToys
We picked this because the Binomial Square is one of the most elegant Montessori materials: a colour puzzle for a preschooler, a first algebra proof for an eight-year-old, made from the same four pieces. Kidken produces it in India in eco-friendly paints, at a price that fits every math shelf.
- Colour and pattern matching
- Geometry vocabulary
- Visual foundation of the binomial identity
- Concentration
- Confidence with algebra
1
Open the box. Notice the printed pattern on the lid: one big red square, one small blue square, two black rectangles.
2
Take pieces out. Empty carefully; the child sees the four shapes.
3
Refit by colour. Match each piece back to its patch on the lid; the printed guide self-corrects.
4
Name the areas. For older children: a^2 (big red), b^2 (small blue), 2ab (two black rectangles).
5
Read the algebra. The whole assembled square is (a+b)^2; the four areas add up to a^2 + 2ab + b^2.
Age 3-4: colour matching, the child assembles the pieces by matching red-to-red and blue-to-blue against the lid pattern.
Age 5-6: geometry, talk about the four pieces: a big square, a small square, two matching rectangles.
Age 7+: algebra, introduce the formula (a+b)^2 = a^2 + b^2 + 2ab; the pieces already show it visually.
Follow with Trinomial Square: the same idea extended to three terms, also at SkilloToys.
Keep it visual: even young children can identify the areas long before the algebra names them.
High-quality wooden pieces
Eco-friendly paints
Self-guiding lid
Age note
Made in India
Brand
Kidken
Model No.
S017
SKU
ST1055
Age Group
3-10 Years
Product Type
Montessori Sensorial / Math Material
Material
High-quality wood with eco-friendly paints
Colour Code
Red, blue and black on lid and pieces
Contents
Wooden box with printed lid + 4 pieces representing (a+b)^2
Dimensions
10 x 10 x 4 cm
Country of Origin
India
What age is the Binomial Square for?
What is in the box?
How does colour matching lead to algebra?
What comes after the Binomial Square?
How do I care for the box?
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Rs. 496
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