Knobbed Cylinders

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Knobbed Cylinders
Sensorial - Visual Discrimination of Size
Knobbed Cylinders.JPG
LevelPre-Primary
Primary
Age2.5 - 3.5
Prerequisiteseye-hand coordination
concentrarion
small muscle coordination
knobbed puzzles
Practical Life activities
Materialsknobbed cylinder block 1
knobbed cylinder block 2
knobbed cylinder block 3
knobbed cylinder block 4

Use of this material teaches the child visual discrimination of dimension. This activity also helps the child develop his or her pincer grip which is necessary for writing.

Presentation

  1. Take the first cylinder block to a table or mat.

Video

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Points of Interest

Control of Error

    Inherent in the Materials (mechanical)
  1. Seeing the cylinders that are too tall stick up
  2. Seeing those that are too wide no fit
  3. Those that are too thin will not fit snugly
  4. Those that are too short will not be level
  5. At the least, the child will be left with one that does not fit in the end.

Variations and Extensions

Language


All Blocks: knob, cylinder


Block 1
- Establishment of Quality: large, small
- Comparatives: larger, smaller
- Superlatives: largest, smallest


Block 2
- No language


Block 3
- Establishment of Quality: thick, thin
- Comparatives: thicker, thinner
- Superlatives: thickest, thinnest


Block 4
- Establishment of Quality: tall, short
- Comparatives: taller, shorter
- Superlatives: tallest, shortest

Material

Where to Buy

Set of 4
Absorbent Montessori $99.00
Absorbent Montessori $149.00
Adena $106.11
Affordable Montessori $105.00
Affordable Montessori $149.00
Albanesi $322.00
Alison's $140.00
Alison's $240.00
Bruin's $295.00
Cabdev $343.00
Caliber $104.99
E & O $320.00
ETC Press $285.00
Hello Wood $311.00
Juliana $271.60

Individual Blocks
Alison's $22.50 (block 4)
Grandpas $29.00 (block 3)
Grandpas $29.00 (block 4)
Hello Wood $79.00 (block 1)
Hello Wood $79.00 (block 2)
Hello Wood $79.00 (block 3)
Hello Wood $79.00 (block 4)
Juliana $71.40 (block 1)
Juliana $71.40 (block 2)
Juliana $71.40 (block 3)
Juliana $71.40 (block 4)

Infant-Toddler Version
Alison's $65.00 (4 cylinders per block)
Alison's $25.00 (5 cylinders per block)
Alison's $78.00 (5 cylinders per block)


Replacement Cylinders
Alison's $10.00 (1 smallest of each)