# Difference between revisions of "Rectangular Box 2"

From wikisori

(New page: === Age === <br> === Materials === <br> === Preparation === <br> === Presentation === <br> === Control Of Error === <br> === Points Of Interest === <br> === Purpose...) |
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Line 1: | Line 1: | ||

=== Age === | === Age === | ||

− | <br> | + | 3-5 years<br> |

=== Materials === | === Materials === | ||

− | <br> | + | *Eight blue triangles with no black lines. |

+ | *Two isosceles right triangles. | ||

+ | *Two scalene right triangles. | ||

+ | *Two equilateral triangles. | ||

+ | *One scalene right triangle and one obtuse triangle.<br> | ||

=== Preparation === | === Preparation === | ||

− | <br> | + | This is an individual exercise, which may be done on a neutral colored rug. (Note: Work cycle to be observed). <br><br> |

=== Presentation === | === Presentation === | ||

− | + | #Invite the child to work with the 'rectangular box'. | |

+ | #Show the child where the rectangular box is located on the shelf. | ||

+ | #When the child has made the selection of the material, begin with the third step after naming the material for the child. | ||

+ | #Indicate the procedure for carrying the material: one hand on each side of the rectangular box with the thumbs on the top and fingers on the bottom. | ||

+ | #Place the box in the upeer left side of the rug. | ||

+ | #Remove the lid and place it to the right of the box. | ||

+ | #Say, "I will make shapes from the triangles." | ||

+ | #Remove the two isosceles right triangles one at a time, and place them in a straight line below the lid. | ||

+ | #Slide them against each other, forming a square. | ||

+ | #Again, slide them together to form a rhomboid. | ||

+ | #Slide them together, to form a different rhomboid. | ||

+ | #Select the two scalene right triangles one at a time. | ||

+ | #Slide them against eachother, forming a rectangle. | ||

+ | #Again, slide them together to form a rhomboid. | ||

+ | #Slide them together to form a different rhomboid. | ||

+ | #Select the two equilateral triangles one at a time. | ||

+ | #Slide them against eachother, to form a rhombus. | ||

+ | #Select the one scalene right triangle and the one scalene obtuse triangle one at a time. | ||

+ | #Slide them together, to form a trapezoid. | ||

+ | #Replace the material into the box beginning with the trapezoid on thr right. | ||

+ | #Return the material to the shelf in the manner described in #3. | ||

=== Control Of Error === | === Control Of Error === | ||

− | <br> | + | Visual disharmony.<br> |

=== Points Of Interest === | === Points Of Interest === | ||

− | <br> | + | Superimposing the blue triangles on the various other triangles. Mixing and pairing the triangles.<br> |

=== Purpose === | === Purpose === | ||

− | + | *To show the quadrilateral figures formed by various triangles. | |

+ | *Refinement of perception. | ||

+ | *Development of concentration, order, coordination, and independence. | ||

+ | *Responds to the sensitive need of order in the child. | ||

+ | *Preparation for geometry. | ||

+ | *Development of appreciation of line and form. | ||

+ | *Development of creativity. | ||

=== Variation === | === Variation === | ||

− | + | #Remove all triangles from the box and freely explore the possible relationships between triangles. | |

+ | #Combination of rectangular box 1 with the blue triangles from rectangular box 2 for matching equal quadrilateral figures created. Superimpose the figures. | ||

+ | #When the child has exhausted the possible geometric figures, 'flip' one of the triangles with a figure and create a new geometric figure. | ||

+ | #Trace the triangles on construction paper and cut out. Paste the variations on paper and make a booklet. | ||

+ | #Trace the triangles on construction paper and cut out. Paste the variations on poster board for charts. | ||

=== Links === | === Links === | ||

− | <br> | + | <br> |

=== Handouts/Attachments === | === Handouts/Attachments === | ||

− | <br> | + | <br> |

− | [[Category:Sensorial]] | + | [[Category:Sensorial]] [[Category:Sensorial_3-6]] |

## Latest revision as of 23:46, 12 October 2009

## Contents

### Age

3-5 years

### Materials

- Eight blue triangles with no black lines.
- Two isosceles right triangles.
- Two scalene right triangles.
- Two equilateral triangles.
- One scalene right triangle and one obtuse triangle.

### Preparation

This is an individual exercise, which may be done on a neutral colored rug. (Note: Work cycle to be observed).

### Presentation

- Invite the child to work with the 'rectangular box'.
- Show the child where the rectangular box is located on the shelf.
- When the child has made the selection of the material, begin with the third step after naming the material for the child.
- Indicate the procedure for carrying the material: one hand on each side of the rectangular box with the thumbs on the top and fingers on the bottom.
- Place the box in the upeer left side of the rug.
- Remove the lid and place it to the right of the box.
- Say, "I will make shapes from the triangles."
- Remove the two isosceles right triangles one at a time, and place them in a straight line below the lid.
- Slide them against each other, forming a square.
- Again, slide them together to form a rhomboid.
- Slide them together, to form a different rhomboid.
- Select the two scalene right triangles one at a time.
- Slide them against eachother, forming a rectangle.
- Again, slide them together to form a rhomboid.
- Slide them together to form a different rhomboid.
- Select the two equilateral triangles one at a time.
- Slide them against eachother, to form a rhombus.
- Select the one scalene right triangle and the one scalene obtuse triangle one at a time.
- Slide them together, to form a trapezoid.
- Replace the material into the box beginning with the trapezoid on thr right.
- Return the material to the shelf in the manner described in #3.

### Control Of Error

Visual disharmony.

### Points Of Interest

Superimposing the blue triangles on the various other triangles. Mixing and pairing the triangles.

### Purpose

- To show the quadrilateral figures formed by various triangles.
- Refinement of perception.
- Development of concentration, order, coordination, and independence.
- Responds to the sensitive need of order in the child.
- Preparation for geometry.
- Development of appreciation of line and form.
- Development of creativity.

### Variation

- Remove all triangles from the box and freely explore the possible relationships between triangles.
- Combination of rectangular box 1 with the blue triangles from rectangular box 2 for matching equal quadrilateral figures created. Superimpose the figures.
- When the child has exhausted the possible geometric figures, 'flip' one of the triangles with a figure and create a new geometric figure.
- Trace the triangles on construction paper and cut out. Paste the variations on paper and make a booklet.
- Trace the triangles on construction paper and cut out. Paste the variations on poster board for charts.

### Links

### Handouts/Attachments