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- 1Learners will identify objects from the classroom environment that are heavy and light by handling and comparing them
- 2Pass around a stone and a leaf to all learners in a circle, asking them to feel the weight in their hands and tell their neighbour which one feels heavier. Repeat with a bottle of water and an empty bottle
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- SORTING OBJECTS BY WEIGHT USING A NON-STANDARDIZED SCALE
- 1Place a simple balance scale (or two buckets hung from a stick) in the centre of the classroom. Show learners a bottle top and a rock. Put the rock in one bucket and ask: Does the rock feel heavy or light? Now put the bottle top in the other bucket. Ask: Can you see which side goes down? The rock is heavier. Write HEAVY and LIGHT on the chalkboard with a simple picture of a rock and a bottle top next to each word. Have learners come forward in turns to place two more objects (a leaf and a pen) on the scales and tell the class if each one is heavy or light
- 2Divide learners into small groups of 4–5 and give each group a collection of objects: paper, balloons, bottle tops, empty bottles, rocks, and leaves. Using the chalkboard pictures as reference, ask each group to sort their objects into two piles on the floor—one for HEAVY objects and one for LIGHT objects. Circulate and ask: Why did you put that leaf in the light pile? Why is the rock in the heavy pile?
- 3Struggling learners: provide only 4 objects to sort (rock, leaf, pen, bottle top) and work with them to compare two objects at a time using the scale.
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- 1Textbook (Numeracy)
- 2Exercise book
- 3Chalkboard
- 4Non-standardized balance scale or two buckets and a stick
- 5Environmental objects: rocks, leaves, pens, paper, balloons, paper aeroplanes, bottle tops, empty bottles, bottles with water
- 6Numeral cards 1–20
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- 1Bring all learners back to the carpet with their sorted piles. Ask each group to count the number of objects in their HEAVY pile using bottle tops or counters, and place a numeral card matching that count next to the pile. Repeat for the LIGHT pile. Ask: Which group has more heavy objects?
- 2Learners stand and form two lines: one line for learners who sorted correctly into heavy and light, one line for those who need more practice. Give the second line two objects to compare and ask: Is this heavier or lighter than this? Confirm their answer with a thumbs up
Exercise
- 1Show learners a collection of 10 mixed objects (rocks, leaves, pens, balloons, bottle tops). Ask them to point to or touch three objects that are heavy and three objects that are light. Then count the heavy objects using their fingers and hold up the matching numeral card in their exercise books.
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