Brown Stair

Brown Stair is a Montessori material consisting of wooden rectangular prisms in varying sizes and colors arranged in a stair-like formation. It is used to help children develop visual discrimination skills, as well as understand and compare different sizes and dimensions. The Brown Stair is considered a sensorial material and is often used in conjunction with other Montessori materials to support children's learning and exploration of size, dimension, and spatial relationships.

براؤن اسٹیئر مونٹیسوری کا سامان ہے جس میں مختلف سائز اور رنگوں کے لکیری چکور پرزوں کا درجہ بندی شدہ فارمیشن ہوتی ہے۔ یہ بچوں کو بصری امتیاز کاری کے مہارتوں کو بڑھانے میں مدد کرتا ہے، اس کے علاوہ مختلف سائز اور وسعتوں کو سمجھنے اور موازنہ کرنے کی صلاحیت کو بھی فراہم کرتا ہے۔ براؤن اسٹیئر سینسوری مواد کے طور پر جانا جاتا ہے اور عموماً دیگر مونٹیسوری سامان کے ساتھ استعمال کیا جاتا ہے تاکہ بچوں کی سائز، وسعت، اور فضائی تعلقات کی تعلیم اور تجسس کو سہارا دیا جا سکے

Following article is for Training purpose only:

Materials
- 10 brown prisms of the same length (20cm) but differing in height. They vary from 10cm x 10cm x 20cm to 1cm x 1cm x 20cm.
- A floor mat of contrasting color.

Presentation

Introduction
Invite the child by telling him you have something to show him.  Tell the child that for this lesson, we will need a mat. Have the child fetch and unroll a mat. Bring him over to the correct shelves and point to the Brown Stairs. Tell the child: “These are the Brown Stairs”. 

Building
- Show the child how to hold the thinnest prism by gripping  over the top of the center part of the prism using your right thumb and fingers.
- Slowly slide the prism off of the shelves until it is fully out.
- Carry the prism vertical and at waist level.
- Have the child carry all of the prisms over one at a time and place them randomly on the right side of the mat. (Show the child to place his hand underneath some of the thicker prisms.)
- Once all of the prisms have been brought over to the mat, have the child stand to your left.
- As you remain standing, carefully pick up the thickest prism (using both hands), and place it near the back left corner of the mat.
- Turn to the child and tell him that you are now looking for a specific one.
- Go over to the right half of the mat and carefully choose the next thickest prism. (Use both hands)
- In a steady and precise movement, place the prism directly under the thickest prism and align them so that they are well aligned.
- Once it has been placed, check to see if it is well aligned by sliding your hand along the left side of the two prisms.  
- Continue placing all of the prisms in correct order and placing them so they come closer and closer to you as each is placed.

Dismantling
Dismantle the Brown Stairs by removing the thinnest to the thickest prism and placing them on the right half of the mat.

Invite the child to build the Brown Stairs. To help him get started, ask him which one he is going to start with. If the child seems to understand, you can let him work alone. Once he is done, have him replace the prisms in correct order on the shelves.

Exercises

Exercise 1
The child builds the stairs individually as was shown in the demonstration.

Exercise 2
Once the child has seemed to master the building of the stairs, the directress will show him an additional step. The directress will carefully place the thinnest prism on the ledge of the second thickest prism and up against the thickest prism. Show the child that by doing so, the second thickest prism is now at the same height as the thickest. Repeat this on every edge of every prism by working your way down.

Games
Grading from an extreme
Grading from a midpoint
Stereognostic
Matching to the environment           

Language           
Thick and Thin
The positives, comparatives, and the superlatives

Purpose

Direct Visual discrimination of dimensions (thickness).

Indirect
- Refinement of voluntary movement.
- Muscular education of grip.
- Preparation for mathematics.

Control of Error
The control of error lies within the child being able to discriminate the dimensions.

Age            
3 to 3 1/2 years