Constructive Triangles - Rectangular Box: Difference between revisions

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| Level        = [[Primary]]
| Level        = [[Primary]]
| Age          = 4 +
| Age          = 4 +
| Preqs        = [[Geometric Cabinet]] <br> [[Constructive Triangles - Triangular Box]]
| Preqs        = [[Geometric Cabinet]]
| Materials    =  
| Materials    = Rectangular Box of Constructive Triangles
}}
}}
Use of this material makes the child aware that all polygons can be made with triangles.
Use of this material makes the child aware that all polygons can be made with triangles.
Line 34: Line 34:
== Material ==
== Material ==
===Make Your Own===
===Make Your Own===
[[Category:Make_your_own]]
Printable version available to buy here:
[http://www.jmjpublishing.com/hope4memembers.html Printable Constructive Triangles] available from Livable Learning.
<gallery mode="nolines">
File:Constructive_Triangles.png|[https://www.teacherspayteachers.com/Product/Montessori-Constructive-Triangles-5638224 Constructive Triangles] - $4.50|link=https://www.teacherspayteachers.com/Product/Montessori-Constructive-Triangles-5638224
</gallery>


===Where to Buy===
===Where to Buy===
'''All 5 Constructive Triangle Boxes'''<br>
[[Category:Where to Buy]]
[http://www.adenamontessori.us/details.php?did=909 Adena] $69.96<br>
Prices and links checked: 05 August 2020
[http://www.adenamontessori.us/details.php?did=1410 Adena] $41.39 (only 3 constructive triangle boxes)<br>
<div class="buyGrid">
[http://www.montessoriresources.com/Constructive-TrianglesSet-of-5-Boxes-P601C5.aspx Albanesi] $505.00<br>
<div class="buyElement">
[http://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's] $150.00<br>
{| class="buytable sortable"
[https://bestmontessoritoys.com/montessori-sensorial/228-montessori-5-boxed-construction-triangle.html Best Montessori Toys] $50.48<br>
|-
[http://www.bruinsmontessori.com/itemdetails.php?item_id=8 Bruins] $274.00<br>
!colspan="2"|Set of 5 Constructive Triangle Boxes
[http://www.cabdevmontessori.com/product.php?productid=16803&cat=251&page=4 Cabdev] $285.00<br>
|-
[http://www.calibermontessori.com/catalog/item/3528879/3204621.htm Caliber] $77.99<br>
! Store !! Price
[http://www.montessoribuy.com/cartdetails.asp?id=HTS0257 Creative Learning] $79.95<br>
|-
[http://www.montessorimaterials.com/content/constructive-triangles-5-boxes E & O] $290.00<br>
|[https://www.adenamontessori.com/ius/details.php?did=909 Adena]
[http://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood] $289.00<br>
|$88.95
[http://www.julianagroup.com/sensorial.lasso?page=detail&Category=&SubCategory=Sensorial&NewItem=&Overstock=&Description=&skip=29 Juliana Group] $470.40<br>
|-
[http://www.kidadvance.com/Store/ProductDetails.asp?pid=276&catid=1 Kid Advance] $69.99<br>
|[https://www.alisonsmontessori.com/Constructive_Triangles_Set_of_all_5_Boxes_p/s16.plastic.htm Alison's]<br><span class="comment">plastic</span>
[http://www.montessoriland.com/site/1270021/product/ID_%201008 Montessori Land] $99.00<br>
|$27.00
[http://montessori-n-such.com/detail.aspx?ID=1181 Montessori N' Such] $185.00<br>
|-
[http://www.montessorioutlet.com/cgi-bin/item/510300300/5103/Montessori-Outlet-Constructive-Triangles-In-Five-Boxes Montessori Outlet] $72.95<br>
|[https://www.alisonsmontessori.com/Constructive_Triangles_p/s16.htm Alison's]
[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] $119.95<br>
|$157.60
[https://merocomontessori.com/montessori-math-materials/15-constructive-triangles-in-five-boxes.html Meroco Montessori] $23 (Constructive Triangles In Five Boxes) <br>
|-
|[https://bruinsmontessori.com/products/sensorial/constructive-triangles-in-5-boxes.html Bruins]
|$290.00
|-
|[https://usa.montessorimaterials.com/products/constructive-triangles-5-boxes E & O]
|$130.50
|-
|[https://shop.hellowood.com/Constructive-Triangles-S9.htm?categoryId=-1 Hello Wood]
|$328.00
|-
|[https://www.kidadvance.com/constructive-triangles-with-5-boxes.html Kid Advance]
|$89.99
|-
|[https://www.leaderjoyusa.com/Montessori/Montessori%20toys,%20sensorial/constructive-triangles-with-5-boxes.html Leader Joy]
|$99.95
|-
|[https://www.thematerialscompany.com/collections/sensorial/products/constructive-triangles-set-of-5-boxes Materials Co. of Boston]
|$230.00
|-
|[https://www.montessori-n-such.com/p-1181-constructive-triangles-set-item-s5365.aspx Montessori N' Such]
|$80.00
|-
|[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-triangles-in-five-boxes.html Montessori Outlet]
|$98.95
|-
|[https://www.nienhuis.com/us/en/constructive-triangles-nienhuis-montessori-usa/product/4543/ Neinhuis]
|$299.00
|-
|[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs]
|$119.95
|}
</div>
<div class="buyElement">
{| class="buytable sortable"
|-
!colspan="2"|Blue Triangles Box
|-
! Store !! Price
|-
|[https://adenamontessori.com/ius/details.php?did=17 Adena]
|$18.69
|-
|[https://www.alisonsmontessori.com/Blue_Constructive_Triangles_Premium_Quality_p/ps07.htm Alison's]
|$38.25
|-
|[https://bruinsmontessori.com/products/sensorial/constructive-blue-triangles.html Bruins]
|$45.00
|-
|[https://usa.montessorimaterials.com/products/constructive-blue-triangles E & O]
|$21.60
|-
|[https://shop.hellowood.com/Scalene-Triangle-Box-S11.htm Hello Wood]
|$53.00
|-
|[https://www.kidadvance.com/constructive-blue-triangles.html Kid Advance]
|$18.99
|-
|[https://www.leaderjoyusa.com/Montessori/Montessori%20toys,%20sensorial/constructive-blue-triangles.html Leader Joy]
|$20.95
|-
|[https://www.thematerialscompany.com/collections/sensorial/products/rectangular-box-with-12-triangles Materials Co. of Boston]
|$31.00
|-
|[https://www.montessori-n-such.com/p-1182-constructive-blue-triangles-set-item-s5366.aspx Montessori N' Such]
|$15.01
|-
|[https://montessorioutlet.com/authentic-montessori/sensorial/constructive-blue-triangles.html Montessori Outlet]
|$18.95
|-
|[https://www.nienhuis.com/us/en/12-identical-blue-triangles-nienhuis-montessori-usa/product/4433/ Nienhuis]
|$59.60
|-
|[https://www.thinkamajigs.com/blue-triangles/ Thinkamajigs]
|$17.95
|}
</div>
</div>
 
==Further Reading==
*[[Basic Montessori: Learning Activities for Under-fives]] by David Gettman, pages 88-90

Revision as of 21:26, 26 August 2020

Constructive Triangles - Rectangular Box
Sensorial - Visual Discrimination of Form
Rectangular Box 2.JPG
LevelPrimary
Age4 +
PrerequisitesGeometric Cabinet
MaterialsRectangular 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

  1. Invite the child to the lesson. Name the work and show them where it is on the shelf.
  2. Unroll a large mat (or put two smaller mats side by side).
  3. Take the box of triangles to the mat.
  4. Lay the triangles so that the ones that go together are in columns.
    Rectangular Box 1.JPG
  5. Slide down the bottom triangle for the first shape.
  6. Trace over the black line on it with your index and middle fingers.
  7. Trace the black line on the corresponding triangle.
  8. Slide down the second triangle so the black lines meet.
  9. Do the same with the other shapes.
    Rectangular Box 2.JPG

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:

Where to Buy

Prices and links checked: 05 August 2020

Set of 5 Constructive Triangle Boxes
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 N' Such $80.00
Montessori Outlet $98.95
Neinhuis $299.00
Thinkamajigs $119.95
Blue Triangles Box
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 $59.60
Thinkamajigs $17.95

Further Reading