Ralleia Experimental Primary Schools
Problem Solving​
Teachers: Androniki Grangou - Petraki Evangelia
Classes: mixed group of students (10-12 years old)
1st PROMBLEM
The shape of the schoolyard is a rectanglular. It's length is 6 meters and it's width is 4 meters. We are going to plant small trees all round the yard. The distance between the trees will be 2 meters.
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How many trees are we going to plant?
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If every tree costs 1,25 euro how much money are we going to pay?
EDUCATIONAL TARGETS
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Understanding the length and width of a rectangular.
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Understanding that the opposites sides of the rectangular are equal and all the angles of the rectangular are right.
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Understanding what perimeter is and how to figure it.
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Distinguishing the concept perimeter and area.
2nd PROMBLEM
Inside the schoolyard there is a garden of a rectangle shape. The length of the garden is 8 meters and the width is 6 metres. We are going to plant 4 flowers in each side of a square shape.
How many flowers are we going to plant?
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EDUCATIONAL TARGETS
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Understanding the concept of perimeter and how to figure it.
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Understanding that all sides of the square are equal.