4th Math NCERT Chapter 7
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– The concept of measuring volumes in milliliters and liters
Summary: Learn how to measure liquids using milliliters and liters, and practice converting between different volumes.
– Understanding the capacity of containers
Summary: Identify the capacity of different containers such as bottles, jugs, and mugs, and practice estimating and measuring volumes.
– Measuring medicine and injections
Summary: Explore the measurement of medicine in milliliters, understand dosage for injections, and practice calculating medicine intake.
– Practical applications of measuring volumes
Summary: Apply volume measurements in real-life situations like calculating water usage, estimating wasted water, and solving practical problems related to volumes.
How many small bottles of water did Adithyan pour to fill the 1-litre bottle?
How many times did Adithyan need to pour water from his small bottle to fill the 1-litre bottle?
How much water can Ramu's small bottle hold?
How much water does Leela's bottle hold?
How much medicine does one injection give to the body?
Based on the chapter provided in the document "4th Math NCERT Chapter 7.pdf," here are three DIY activities or projects that students can enjoy:
Create Your Own Measuring Bottle:
- Materials Needed:Different sizes of bottles (small and large), water, measuring cup or scale.
- Instructions:
Gather different sizes of empty bottles like coconut oil bottles or any other small containers.
Estimate and label the capacities of these bottles (e.g., 200 mL, 400 mL, 600 mL, 800 mL, and 1 litre).
Fill the small bottles with water and keep track of how many times each one needs to be poured into a 1-litre bottle to fill it up.
Discuss your findings with your friends and teacher and share how you made your measuring bottle.
Daily Water Usage Guessing Game:
- Materials Needed:Pen, paper, a table to note down your guesses.
- Instructions:
Guess how much water your family uses in a day for various activities like cooking, drinking, washing clothes, and cleaning pots and pans.
Fill in a table with your estimates for each activity's water usage in buckets and litres.
Discuss your guesses with your family and compare them with the actual water usage patterns in your household.
Leaking Tap Water Collection Experiment:
- Materials Needed:A 1-litre jar or bottle, a leaking tap.
- Instructions:
Identify a leaking tap at your school or home.
Place the 1-litre jar under the leaking tap and note the time.
Let the jar collect water from the leak for an hour.
Measure and note how much water was collected in the jar.
Calculate how much water would be wasted in a day, a week, a month, and a year if the tap continues to leak.
These activities are not only fun but also educational, helping you understand measurements, estimations, and the importance of water conservation. Enjoy and learn while doing these projects!
Here are three real-world scenarios related to the topics covered in Chapter 7 of the 4th-grade Math NCERT textbook:
1. Saving Water at Home: Think about the water you use at home each day. Imagine your family of 5 in Goodallur village. Estimate how many liters of water your family uses in a day for activities like cooking, drinking, washing clothes, and cleaning. Also, check if there are any leaking taps in your school or home. Place a jar under a leaking tap to see how much water is wasted in an hour. By being mindful of water usage, you can help conserve this precious resource just like the characters in the chapter.
2. Measuring Tea Ingredients: Imagine running a tea shop like Yusuf. Consider how much milk you would need if you made 100 glasses of tea, with each glass requiring 20 mL of milk. This will help you understand practical applications of measurements in daily life, similar to how Yusuf needs to measure milk accurately to serve his customers.
3. Sharing Food Equally: Picture Bunny and Banno celebrating their wedding anniversary with their animal friends. Think about how much kheer (a sweet dish made with milk, sugar, and rice) each animal can have. Calculate the amount of kheer each character requests, like the squirrel needing only 500 milliliters. This activity will help you understand how to distribute and share quantities fairly, just like the animal friends sharing kheer at the celebration.
These scenarios can make learning about measurements and quantities more fun and relatable for students, allowing them to apply math concepts to real-life situations .
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