Activity W 6.6 Estimation Nation – Numbers All Around Us!
Students may be asked to do some simple estimates.
It is a fun exercise, and they may find it amusing to know the various numbers around them.
Remember, exact numbers are not required for the following questions.
Students may share their methods of estimation with the class.
Steps you would take to walk—
Steps Estimation
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From desk to classroom door → ~20 steps
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Across school ground → ~150 steps
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Classroom to school gate → ~300 steps
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School to home (walking) → ~3,000–5,000 steps (depends on distance)
From the place you are sitting to the classroom door.
Across the school ground from start to the end.
From your classroom door to the school gate.
From your school to your home.
Some other places may be also thought of.
Number of times you blink your eyes or the number of breaths you take—
In a minute
In an hour
In a day
Blinks and Breaths Estimation
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Blinks per minute → ~15–20
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Blinks per hour → ~900–1,200
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Blinks per day → ~15,000–20,000
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Breaths per minute → ~12–16
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Breaths per hour → ~720–960
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Breaths per day → ~17,000–24,000
Name some objects around you that are—
A few thousand in number
More than ten thousand in number
Object Estimation
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A few thousand: grains of rice in a lunchbox, sand particles in a small cup, strands of hair on your head
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More than 10,000: bricks in a school building, ants in an anthill, pages in a library
Try to guess within 30 seconds. Check your guess with your friends.
Number of words in your Maths textbook—
a. More than 5000
b. Less than 5000
Words in your math textbook: More than 5,000 ✅
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Students traveling by bus: More than 200 (depends on school size) ✅
Number of students in your school who travel to school by bus—
a. More than 200
b. Less than 200
Travel Time Estimations (Walking)
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To a nearby favorite place → 15–30 minutes
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To a neighboring state’s capital → ~10–20 days (walking 30 km/day)
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From Kanyakumari to Kashmir → ~2,500 km = ~80–90 days walking
Earlier, people used to walk long distances as they had no other means of transport.
Suppose you walk at your normal pace.
Approximately, how long would it take you to go from:
a. Your current location to one of your favourite places nearby.
b. Your current location to any neighbouring state’s capital city.
c. The southernmost point in India to the northernmost point in India.
Make some estimation questions and challenge your classmates.
Estimation Questions You Can Create
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How many pencils in your classroom?
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How many tiles on the floor?
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How many liters of water used in your school each day?
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