Knobbed Cylinders
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Knobbed Cylinders | |
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Sensorial - Visual Discrimination of Size | |
Level | Pre-Primary Primary |
Age | 2.5 - 3.5 |
Prerequisites | eye-hand coordination concentrarion small muscle coordination knobbed puzzles Practical Life activities |
Materials | knobbed 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
- 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)
- Seeing the cylinders that are too tall stick up
- Seeing those that are too wide no fit
- Those that are too thin will not fit snugly
- Those that are too short will not be level
- 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)