Constructive Triangles - Rectangular Box: Difference between revisions
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[https://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's] $157.60<br> | [https://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's] $157.60<br> | ||
[https://bruinsmontessori.com/products/sensorial/constructive-triangles-in-5-boxes.html Bruins] $290.00<br> | [https://bruinsmontessori.com/products/sensorial/constructive-triangles-in-5-boxes.html Bruins] $290.00<br> | ||
[https:// | [https://usa.montessorimaterials.com/products/constructive-triangles-5-boxes E & O] $145.00<br> | ||
[https://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood] $328.00<br> | [https://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood] $328.00<br> | ||
[https://www.kidadvance.com/constructive-triangles-with-5-boxes.html Kid Advance] $89.99<br> | [https://www.kidadvance.com/constructive-triangles-with-5-boxes.html Kid Advance] $89.99<br> | ||
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[https://www.alisonsmontessori.com/Blue_Constructive_Triangles_Premium_Quality_p/ps07.htm Alison's] $38.25<br> | [https://www.alisonsmontessori.com/Blue_Constructive_Triangles_Premium_Quality_p/ps07.htm Alison's] $38.25<br> | ||
[https://bruinsmontessori.com/products/sensorial/constructive-blue-triangles.html Bruin's] $45.00<br> | [https://bruinsmontessori.com/products/sensorial/constructive-blue-triangles.html Bruin's] $45.00<br> | ||
[https:// | [https://usa.montessorimaterials.com/products/constructive-blue-triangles E & O] $24.00<br> | ||
[https://shop.hellowood.com/Scalene-Triangle-Box-S11.htm Hello Wood] $53.00<br> | [https://shop.hellowood.com/Scalene-Triangle-Box-S11.htm Hello Wood] $53.00<br> | ||
[https://www.kidadvance.com/constructive-blue-triangles.html Kid Advance] $18.99<br> | [https://www.kidadvance.com/constructive-blue-triangles.html Kid Advance] $18.99<br> |
Revision as of 08:53, 22 July 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 last checked: 1 June 2020
Prices and links last checked: 1 June 2020
Set of 5 Constructive Triangle Boxes
(Includes: Rectangular Box, Triangular Box, Blue Rectangular Box, Large Hexagonal Box, Small Hexagonal Box)
Adena $88.95
Alison's $157.60
Bruins $290.00
E & O $145.00
Hello Wood $328.00
Kid Advance $89.99
Leader Joy $99.95
Materials Company of Boston $230.00
Montessori N' Such $80.00
Montessori Outlet $98.95
Neinhuis $299.00
Thinkamajigs $101.96
Blue Triangles Box
Adena $18.69
Alison's $38.25
Bruin's $45.00
E & O $24.00
Hello Wood $53.00
Kid Advance $18.99
Leader Joy $20.95
Materials Company of Boston $31.00
Montessori N' Such $15.01
Montessori Outlet $18.95
Nienhuis $59.60
Thinkamajigs $15.26
Further Reading
- Basic Montessori: Learning Activities for Under-fives by David Gettman, pages 88-90