9_space Time Relationship

BASIC SCIENCE PROCESS SKILL USING TIME-SPACE RELATIONSHIP

LECTURE NOTES KPLI & KDPM

WHAT DOES IT MEAN? • All objects occupy a place in space • This skill involves the ability to discern and describe directions, spatial arrangements, motion and speed, symmetry, and rate of change. • (Is a process to describe a location, direction, shape and size of an object and its changes in a period of time.) • (Describing changes in parameter with time. Examples of parameters are location, direction, shape, size, volume, weight and mass) Sep 8, 2009

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Space Time Relationships • Indicator: – To describe a location and time – To describe the changes of direction, shape and size of an object in a period of time – To describe the relationships between the distance that has been covered in a period of time. – To arrange events chronologically – To determine the magnitude of changes that occurred based on the rate of changing – To determine the location of an object in space and to describe its location – To describe the shape of an object when it is seen from a location or a point of different frame of reference.

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SAMPLE ACTIVITIES • • •

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Recognise and name 2D (squares, rectangles, circles) and 3 D shapes (cubes, prisms, ellipsoids) Describe their own position in terms of some reference point or the positions of other people or things. One aspect of the property we call symmetry is the repitetion in size and shape of one part of an object on the opposite side of a line or plane. Display circle, squres, and spheres and ask children to try and draw a line or plane through each object to show whether the parts on opposite sides are identical. Provide children with a small metal mirror (instead of glass as a safety precaution) and half an apple or a pear made by a lengthwise cut through the fruit. Ask children to discover if the right and left sides of the half are symmetrical. They can put the mirror lengthwise down the middle of the fruit section to see if they can observe the image of a complete fruit. Tell time on a clock Describe time sequences such as day and night and the seasons.

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ACTIVITY 1 : AXES OF SYMMETRY How many lines of symmetry?

4 LINES OF SYMMETRY Sep 8, 2009

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2 LINES OF SYMMETRY

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3 LINES OF SYMMETRY

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INFINITE LINES OF SYMMETRY Sep 8, 2009

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HOW MANY PLANES OF SYMMETRY?

2 PLANES OF SYMMETRY Sep 8, 2009

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4 PLANES OF SYMMETRY Sep 8, 2009

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