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Construction of mathematical weights

1. Reception - Fig. 11

2. Reason - Fig. 2



3. Release Button - Figure 3

4. A set of numbers from 1 to 10 (two pieces each) - Fig. 4


5. The double-arm lever with scale divisions of 1 to 10 - Figure 5

6. Set S-shaped hooks for hanging numbers - Figure 6

Suspension numbers to the arm or to each other is made by means of hooks, which are separated from the Г- shaped by their ease of rotation around the connection or cut with scissors.вается стойка, на ось коBased on the weights rack mounted on the axis of which is worn double-arm lever with scale divisions and the release button. 

Tasks for solid geometry

Треугольная пирамида

task 1

The figures show the sweep of the pyramid ABCD dividing point it is necessary to identify these letters so as to obtain a triangular pyramid.
Without the help of models of these tasks are useful for everyone. They develop imagination and logical thinking. Such problems can be solved without the help of knowledge. If the solution does not work, then scan the model suggests a solution. The aforementioned main modifications pyramid, but opportunities are endless transformations. The simplicity of the device and versatility action opens an interesting and complex world of geometry, so the pyramid need to have on the table the student in the classroom

геометрии.

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Четырехугольная пирамида

task 2

 

The figure shows the sweep of the pyramid ABCDE, where E is the point of the quad.
Separating point it is necessary to designate these letters so as to obtain foursquare pyramid.

 



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Шестиугольная пирамида

task 3
The figure shows a hexagonal pyramid, which consists of 18 items.
How can one get moving one element of a 6-coal pyramid 7-coal?
Prototype problem exists for the 4-coal, coal-8, etc. pyramids.

 

 

  

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