Scale drawing - Part 2

Activity - Scale Drawing - Part 2

Estimated Time

45 minutes

Materials/ Resources needed

Graph sheets, scale, pencil,

Prerequisites/Instructions, if any

1. The students should have knowledge about scale drawing.
2. They should know about scale factor.
3. They should understand that a scaling factor should be maintained as constant throughout the sketches.
4. Students should be able to read and understand a scaling factor.
5. They should be able to find a scaling factor and create a scale drawing.
6. The activity on using standard measuring instruments should be done prior to this activity.
7. The students should have been introduced to area, calculations and unit conversions.

Process

1. In the above blue print each individual unit is 4 feet.
2. Explain the meaning of 1 unit.
3. Each ceramic tile costs Rs 80 per square foot.
4. How much would it cost to tile the bathroom ?
5. How much would it cost to tile Kitchen, Living room and bedroom?

Developmental Questions

1. Along with knowing the length and width of the scale model, what additional information do you need to know ?
2. What is the scale factor here.

Evaluation

1. What is 1 unit in the given blue print.
2. What does '1 unit = 4 feet mean' ?
3. What are the actual dimensions of each room ?

Question Corner

1. What all factors do you need to know to estimate the painting costs for each of the rooms.
2. Write down the sequential steps for the calculations.

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