# Difference between revisions of "Constructive Triangles - Rectangular Box"

### From Montessori Album

(→Where to Buy) |
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[http://www.montessorioutlet.com/cgi-bin/item/510300300/5103/Montessori-Outlet-Constructive-Triangles-In-Five-Boxes Montessori Outlet] $72.95<br> | [http://www.montessorioutlet.com/cgi-bin/item/510300300/5103/Montessori-Outlet-Constructive-Triangles-In-Five-Boxes Montessori Outlet] $72.95<br> | ||

[https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] $119.95<br> | [https://www.thinkamajigs.com/constructive-triangles/ Thinkamajigs] $119.95<br> | ||

− | [https://merocomontessori.com/montessori-math-materials/15-constructive-triangles-in-five-boxes.html | + | [https://merocomontessori.com/montessori-math-materials/15-constructive-triangles-in-five-boxes.html Meroco Montessori] $23 (Constructive Triangles In Five Boxes) <br> |

## Revision as of 19:19, 18 July 2018

Constructive Triangles - Rectangular Box | |
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Sensorial - Visual Discrimination of Form | |

Level | Primary |

Age | 4 + |

Prerequisites | Geometric Cabinet Constructive Triangles - Triangular Box |

Use of this material makes the child aware that all polygons can be made with triangles. This activity prepares the child for geometry.

## Contents

## 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

## Variations and Extensions

## Material

### Make Your Own

Printable Constructive Triangles available from Livable Learning.

### Where to Buy

**All 5 Constructive Triangle Boxes**

Adena $69.96

Adena $41.39 (only 3 constructive triangle boxes)

Albanesi $505.00

Alison's $150.00

Best Montessori Toys $50.48

Bruins $274.00

Cabdev $285.00

Caliber $77.99

Creative Learning $79.95

E & O $290.00

Hello Wood $289.00

Juliana Group $470.40

Kid Advance $69.99

Montessori Land $99.00

Montessori N' Such $185.00

Montessori Outlet $72.95

Thinkamajigs $119.95

Meroco Montessori $23 (Constructive Triangles In Five Boxes)