Comparisons

Unit 4

Measurements

Comparisons

Keywords: Long-Short, Thick –Thin Tall-Short, Heavy – Light More - Less

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Observe the picture.

Teacher's Note: Teacher explains the picture for introducing the above keywords.

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Long – Short

Practice

Colour the Longer one with Green and the Shorter one with Red

Think like a Mathematician.

Which stick will the mother use to get back the kite? Why?

Answer: The mother will use Long stick to get back the kite. Kite is in higher place on tree, so loner stick only can touch.

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Thick – Thin

Practice

Tick (✓) the thicker book.

Tick (✓) the thinner tyre.

Try this

Colour the thicker candle with Red and the thinner candle with Green

Which candle will burn for a long time? Why?

Answer: Thicker candle will burn for a long time.

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Tall – Short

Practice

Colour the taller building with Green and the shorter building with Red

Which building will consume more colour? Why?

Answer: Taller building  will consume more colour. The painting area of higher.

Think like a Mathematician

Which ladder will he use to pick the red coloured book? Why?

Answer: Taller ladder will be used to pick the red coloured book. Shorter ladder is not as much height to pick red book.

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Heavy- Light

Practice

Colour the heavier one with brown and the lighter one with violet

Can you suggest a pair of fruits for this concept?

Answer: Jackfruit is heavier. Mango is lighter 

Think like a Mathematician

If the mother sits in the place of the boy, what will happen? Why?

Answer: The girl moves up to top. Mother is heavier than girl, so girl lift up.

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More-Less

Practice

Tick (✓) the bottle that contains less water.

Tick (✓) the container that can hold more water.

Think like a Mathematician

Is it a right vessel to pour the full packet of milk? Why?

Answer: No, Thumbler cannot hold full milk.

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Ordering

Practice

Tick (✓) the shortest.

Tick (✓) the tallest.

Teacher's Note: Teacher can help students to develop the idea of ordering objects based on length, mass and height.