Difference between revisions of "Broad Stair"

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[http://www.cabdevmontessori.com/product.php?productid=16813&cat=251&page=1 Cabdev] $165.00 (includes spare 1cm prism)<br>
[http://www.cabdevmontessori.com/product.php?productid=16813&cat=251&page=1 Cabdev] $165.00 (includes spare 1cm prism)<br>
[http://www.calibermontessori.com/catalog/item/3528879/3204250.htm Caliber] $54.99<br>
[http://www.calibermontessori.com/catalog/item/3528879/3204250.htm Caliber] $54.99<br>
[http://www.montessoribuy.com/cartdetails.asp?id=HTS0001 Creative Learning] $55.95<br>
[http://www.montessorimaterials.com/content/broad-brown-stair E & O] $178.00<br>
[http://www.grandpas.ca/product_info.php/cPath/4/products_id/119?osCsid=d8aea64fa63ec941f869c423a58aa6e0 Grandpas] $65.00<br>
[http://shop.hellowood.com/Brown-Stair-S1.htm Hello Wood] $154.00<br>
[http://www.julianagroup.com/sensorial.lasso?page=detail&Category=&SubCategory=Sensorial&NewItem=&Overstock=&Description=&skip=8 Juliana Group] $151.20<br>
[http://www.kidadvance.com/Store/ProductDetails.asp?pid=9&catid=1 Kid Advance] $55.99<br>
[http://www.montessoriconcepts.com/products.php?cat=Sensory&num=3 Montessori Concepts] $48.00<br>
[http://www.montessoriland.com/site/1270021/product/ID_%201005 Montessori Land] $74.00<br>
[http://www.montessorioutlet.com/cgi-bin/item/510300091/5103/Montessori-Outlet-Brown-Stair-%28Brown-Lacquer%29 Montessori Outlet] $69.95 (brown lacquer)<br>
[http://www.montessorioutlet.com/cgi-bin/item/510300092/5103/Montessori-Outlet-Brown-Stair-%28Clear-Lacquer%29 Montessori Outlet] $69.95 (clear lacquer)<br>
[http://www.nienhuis.com/the-brown-stair-brown-lacquer.html Nienhuis] $155.50 (brown lacquer)<br>
[http://www.nienhuis.com/the-brown-stair-clear-lacquer.html Nienhuis] $159.00 (clear lacquer)<br>

Revision as of 06:16, 25 September 2011

Broad Stair
Sensorial - Visual Discrimination of Size
Broad Stair.jpg
Age2.5 - 3.5
Prerequisitessmall muscle coordination
Pink Tower
Materialsset of Broad Stair prisms

Use of this material teaches the child visual discrimination of thickness. This activity also prepares the child for algebra.


  1. Starting with the thinnest prism, carry the prisms one-by-one to a mat. Lay them out randomly, but all aligned vertically.
    Broad Stair 1.JPG
  2. Find the thickest and the thinnest of the prisms and set them at the bottom of the mat. Point to each and say to the child, "This is thick. This is thin." Then mix the two prisms back in with the others.
    Broad Stair 2.JPG
  3. Take the thickest prism and set it in the upper left-hand corner of the mat. Then find the next thickest and set it to the right of the first.
    Broad Stair 3.JPG
  4. Continue until all of the prisms have been put in order creating a stair.
    Broad Stair 4.JPG
  5. To put the work away, carry the prisms back to the shelf one at a time starting with the thickest one.


Segment on Broad Stair begins at 15:20. {{#ev:googlevideo|-1276553600766257368|300}}

Points of Interest

Control of Error

Variations and Extensions


Where to Buy

Adena $51.89
Adena $48.10
Affordable Montessori $79.00
Affordable Montessori $129.00
Albanesi $204.00
Alison's $140.00
Alison's $52.00 (natural wood)
Alison's $68.00
Bruins $140.00
Cabdev $165.00 (includes spare 1cm prism)
Caliber $54.99
Creative Learning $55.95
E & O $178.00
Grandpas $65.00
Hello Wood $154.00
Juliana Group $151.20
Kid Advance $55.99
Montessori Concepts $48.00
Montessori Land $74.00
Montessori Outlet $69.95 (brown lacquer)
Montessori Outlet $69.95 (clear lacquer)
Nienhuis $155.50 (brown lacquer)
Nienhuis $159.00 (clear lacquer)