Constructive Triangles - Rectangular Box: Difference between revisions
From Montessori Album
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===Where to Buy=== | ===Where to Buy=== | ||
[[Category:Where to Buy]] | [[Category:Where to Buy]] | ||
Prices and links checked: | Prices and links checked: 23 January 2022 | ||
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|[https://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's] | |[https://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's] | ||
|$ | |$165.48 | ||
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|[https://bruinsmontessori.com/products/sensorial/constructive-triangles-in-5-boxes.html Bruins] | |[https://bruinsmontessori.com/products/sensorial/constructive-triangles-in-5-boxes.html Bruins] | ||
|$ | |$300.00 | ||
|- | |- | ||
|[https://usa.montessorimaterials.com/products/constructive-triangles-5-boxes E & O] | |[https://usa.montessorimaterials.com/products/constructive-triangles-5-boxes E & O] | ||
|$ | |$150.30 | ||
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|[https://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood] | |[https://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood] | ||
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|[https://www.kidadvance.com/constructive-triangles-with-5-boxes.html Kid Advance] | |[https://www.kidadvance.com/constructive-triangles-with-5-boxes.html Kid Advance] | ||
|$ | |$94.99 | ||
|- | |- | ||
|[https://www.leaderjoyusa.com/Montessori/Montessori%20toys,%20sensorial/constructive-triangles-with-5-boxes.html Leader Joy] | |[https://www.leaderjoyusa.com/Montessori/Montessori%20toys,%20sensorial/constructive-triangles-with-5-boxes.html Leader Joy] | ||
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|[https://www.nienhuis.com/us/en/constructive-triangles-nienhuis-montessori-usa/product/4543/ Neinhuis] | |[https://www.nienhuis.com/us/en/constructive-triangles-nienhuis-montessori-usa/product/4543/ Neinhuis] | ||
|$ | |$299.00 | ||
|- | |- | ||
|[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] | |[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] | ||
|$ | |$129.95 | ||
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|[https://www.alisonsmontessori.com/Blue_Constructive_Triangles_Premium_Quality_p/ps07.htm Alison's] | |[https://www.alisonsmontessori.com/Blue_Constructive_Triangles_Premium_Quality_p/ps07.htm Alison's] | ||
|$ | |$45.00 | ||
|- | |- | ||
|[https://bruinsmontessori.com/products/sensorial/constructive-blue-triangles.html Bruins] | |[https://bruinsmontessori.com/products/sensorial/constructive-blue-triangles.html Bruins] | ||
|$ | |$47.00 | ||
|- | |- | ||
|[https://usa.montessorimaterials.com/products/constructive-blue-triangles E & O] | |[https://usa.montessorimaterials.com/products/constructive-blue-triangles E & O] | ||
|$21.60 | |$21.60 | ||
|- | |- | ||
|[https://www.kidadvance.com/constructive-blue-triangles.html Kid Advance] | |[https://www.kidadvance.com/constructive-blue-triangles.html Kid Advance] | ||
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|$31.00 | |$31.00 | ||
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|[https://www.montessori-n-such.com/ | |[https://www.montessori-n-such.com/collections/all/products/constructive-blue-triangles-set-item-s5366 Montessori | ||
|$ | |$26.00 | ||
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|[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-blue-triangles.html Montessori Outlet] | |[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-blue-triangles.html Montessori Outlet] | ||
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|[https://www.nienhuis.com/us/en/12-identical-blue-triangles-nienhuis-montessori-usa/product/4433/ Nienhuis] | |[https://www.nienhuis.com/us/en/12-identical-blue-triangles-nienhuis-montessori-usa/product/4433/ Nienhuis] | ||
|$ | |$62.00 | ||
|- | |- | ||
|[https://www.thinkamajigs.com/blue-triangles/ Thinkamajigs] | |[https://www.thinkamajigs.com/blue-triangles/ Thinkamajigs] | ||
|$ | |$22.95 | ||
|} | |} | ||
</div> | </div> | ||
Revision as of 14:56, 23 January 2022
| Constructive Triangles - Rectangular Box | |
|---|---|
| Sensorial - Visual Discrimination of Form | |
 | |
| Level | Primary |
| Age | 4 + |
| Prerequisites | Geometric Cabinet |
| Materials | Rectangular Box of Constructive Triangles |
Use of this material makes the child aware that all polygons can be made with triangles. This activity prepares the child for geometry.
Presentation
- Invite the child to the lesson. Name the work and show them where it is on the shelf.
- Unroll a large mat (or put two smaller mats side by side).
- Take the box of triangles to the mat.
- Lay the triangles so that the ones that go together are in columns.
- Slide down the bottom triangle for the first shape.
- Trace over the black line on it with your index and middle fingers.
- Trace the black line on the corresponding triangle.
- Slide down the second triangle so the black lines meet.
- Do the same with the other shapes.
Points of Interest
Control of Error
The black lines serve as a control of error when constructing the shapes.
Variations and Extensions
Material
Make Your Own
Printable version available to buy here:
Constructive Triangles - $4.50
Where to Buy
Prices and links checked: 23 January 2022
| Set of 5 Constructive Triangle Boxes | |
|---|---|
| Store | Price |
| Adena | $88.95 |
| Alison's plastic |
$27.00 |
| Alison's | $165.48 |
| Bruins | $300.00 |
| E & O | $150.30 |
| Hello Wood | $328.00 |
| Kid Advance | $94.99 |
| Leader Joy | $99.95 |
| Materials Co. of Boston | $230.00 |
| Montessori Outlet | $98.95 |
| Neinhuis | $299.00 |
| Thinkamajigs | $129.95 |
| Blue Triangles Box | |
|---|---|
| Store | Price |
| Adena | $18.69 |
| Alison's | $45.00 |
| Bruins | $47.00 |
| E & O | $21.60 |
| Kid Advance | $18.99 |
| Leader Joy | $20.95 |
| Materials Co. of Boston | $31.00 |
| [https://www.montessori-n-such.com/collections/all/products/constructive-blue-triangles-set-item-s5366 Montessori | $26.00 |
| Montessori Outlet | $18.95 |
| Nienhuis | $62.00 |
| Thinkamajigs | $22.95 |
Further Reading
- Basic Montessori: Learning Activities for Under-fives by David Gettman, pages 88-90
