Constructive Triangles - Rectangular Box: Difference between revisions
From Montessori Album
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|[https://www.thematerialscompany.com/collections/sensorial/products/constructive-triangles-set-of-5-boxes Materials Co. of Boston] | |[https://www.thematerialscompany.com/collections/sensorial/products/constructive-triangles-set-of-5-boxes Materials Co. of Boston] | ||
|$230.00 | |$230.00 | ||
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|[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-triangles-in-five-boxes.html Montessori Outlet] | |[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-triangles-in-five-boxes.html Montessori Outlet] | ||
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|[https://www.nienhuis.com/us/en/constructive-triangles-nienhuis-montessori-usa/product/4543/ Neinhuis] | |[https://www.nienhuis.com/us/en/constructive-triangles-nienhuis-montessori-usa/product/4543/ Neinhuis] | ||
|$ | |$191.36 | ||
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|[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] | |[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] | ||
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|[https://www.nienhuis.com/us/en/12-identical-blue-triangles-nienhuis-montessori-usa/product/4433/ Nienhuis] | |[https://www.nienhuis.com/us/en/12-identical-blue-triangles-nienhuis-montessori-usa/product/4433/ Nienhuis] | ||
|$ | |$43.51 | ||
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|[https://www.thinkamajigs.com/blue-triangles/ Thinkamajigs] | |[https://www.thinkamajigs.com/blue-triangles/ Thinkamajigs] |
Revision as of 16:24, 7 October 2020
Constructive Triangles - Rectangular Box | |
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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: 07 October 2020
Set of 5 Constructive Triangle Boxes | |
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Store | Price |
Adena | $88.95 |
Alison's plastic |
$27.00 |
Alison's | $157.60 |
Bruins | $290.00 |
E & O | $130.50 |
Hello Wood | $328.00 |
Kid Advance | $89.99 |
Leader Joy | $99.95 |
Materials Co. of Boston | $230.00 |
Montessori Outlet | $98.95 |
Neinhuis | $191.36 |
Thinkamajigs | $119.95 |
Blue Triangles Box | |
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Store | Price |
Adena | $18.69 |
Alison's | $38.25 |
Bruins | $45.00 |
E & O | $21.60 |
Hello Wood | $53.00 |
Kid Advance | $18.99 |
Leader Joy | $20.95 |
Materials Co. of Boston | $31.00 |
Montessori N' Such | $15.01 |
Montessori Outlet | $18.95 |
Nienhuis | $43.51 |
Thinkamajigs | $17.95 |
Further Reading
- Basic Montessori: Learning Activities for Under-fives by David Gettman, pages 88-90