After studying the picture have a discussion in the class and answer the following questions.

• Why is the painter holding the pencil in his hand in a particular way?

• How can the scene of this large landscape be depicted on paper?

• How is it possible to view all the countries of the world on one map?

• What is common to both these pictures?

• The painter is holding the pencil in such a way so that he can take an appropriate measurement of the objects in the painting.

• This scene can be depicted on paper by reducing the proportions of the elements of the scene on a fixed scale.

• a. In the preparation of maps, the picture is first surveyed.

b. At that time, after special observation, a scale is fixed.

c. Using this scale, an outline map of the earth is prepared.

Hence, we can view all the countries of the world on one map.

• A fixed scale or measurement is common in both the pictures.