Design of PMRI-based Mathematical Problems (English Version)

Number (ES PISANG IJO SAUCE)

esp

In order to make 6 portions of ‘es pisang ijo sauce’, the following ingredients are required:
– 1 litre of coconut milk
– 60 gram of tepung beras
– 100 gram of sugar
– 1/2 tea spoon of salt
– 1 piece of palm leave

Andi wants to make the sauce, and he has 10 litre of coconut milk, 100 gram of tepung beras, 1 kg of sugar, a lot of salt, 10 pieces of palm leave. How many portion of ‘es pisang ijo sauce’ he could make?

Statistics (SKY SCRAPER BUILDINGS)
An interior designer tried to predict the height of each floor in several sky-scraper buildings in Makassar in order to make well-marketed designs. He gathered data on 5 buildings, as follows:
Capture
Explain why ‘mean’ is less appropriate to use in this case!

Geometry (BARUGA TELKOMSEL PAMASUKA MAKASSAR)
tlkmsl

For a more beautiful sight, the designer of ‘Baruga Telkomsel’ decided to cover the building with glasses (as it is shown in the picture beside).

If the height of the building is 17m, the length and the width of its base is 30 m each, and horizontal difference of its base-top is 8m (look at the picture below), then the area of the glasses needed to cover the entire out-side wall of the building is ….

mnara mdel
Model of Baruga Telkomsel
(The sizes are modified to simply counting)

PS. Assume that the entire wall was made of glass.

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