This chapter implements mathematics in real-life situations by shapes, fundamental mathematical operations (addition, subtraction, multiplication, division), estimation, movement, comparisons, loans, etc., and gives a chance to revise mathematical concepts interestingly learnt in earlier classes.
Objectives,
Connecting real-life activities to mathematics
Understanding the geometry of natural things
Exercising mathematical operations to common life problems
Haiku
"A three-line poem is known as Haiku."
This kind of poem on nature is famous in Japan. Here are a few examples,
Poem-1
Deep under the sea
See the lovely coloured fish
Swimming peacefully
Meaning:
Lovely fish are swimming in the deep sea without any noise
Poem-2
The lake, calm, smooth, still
A fish jumps up and returns
Ripples shake the lake
Meaning:
In a peaceful lake, a fish jumps up and goes back into the water making ripples in the water.
How to draw a fish on paper
Shapes used by children to draw a fish picture,
rectangles, triangles, and circles, etc.
Examples,
Fish vs Whale
- Whales are different from fish.
- Whales are mammals like cows and humans.
- Whales have lungs to breathe but fish have gills to breathe.
- Whales breathe their noses and breathe with air.
- but fish have no noses but they breathe water through their mouth and pass through their gills
- Whales give birth to babies, but fish lay eggs.
- The whale shark fish is big and looks dangerous but they are generous and harmless and do not attack humans.
- Whales may be 18 m long, approximately the sum of the heights of 12 children
- A whale may weigh about 16000kg
Wonderful !!!
Have you ever seen a whale?
Have you ever watched Fisher Folk-dance ?
.
Some fish are small and some fish are bigger
*Smallest fish maybe 1cm long
*How long have you seen a fish ? ...........................
*What is your height ? ...........................
In Hindi, fish is known as Meen (मीन, मछली)
*Meenakshi is a girl's name. Meenakshi means a girl having fish-shaped eyes
*Have you seen ever a girl with eyes like fish?
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