Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 4 Measurements InText Questions

Activity (Text Book Page No. 51 & 52)

 

Question. Measure the following things and complete the table given below.
Answer: Students need to measure the items shown in the images (a leaf, a credit card, a pencil, a pen, a chalk piece, and a pencil sharpener). They should first estimate the length and then measure it accurately. This activity helps in understanding how to use measuring tools. They can use rulers or measuring tapes to find the exact length.
In simple words: Look at the pictures, guess how long each item is, and then measure them using a ruler to find the real length.

🎯 Exam Tip: Always practice estimating lengths before measuring. This improves your visual sense of distance and helps you become more familiar with measurement units.

 

Group Activity (Text Book Page No. 52)

 

Question. Ask the children to measure the length of the following things.
(a) Black board
(b) Cupboard
(c) Table
(d) Wall clock
(e) Classroom
Answer: This is a hands-on activity for students to perform by themselves. They need to use a measuring tool, like a meter tape, to find the length of each item. This helps them learn practical measurement skills. For example, they might measure the blackboard's width or the table's height.
In simple words: The children need to measure the items listed using a ruler or tape measure.

🎯 Exam Tip: When measuring larger objects, ensure you use an appropriate measuring tool like a long measuring tape, and work with a partner to get accurate readings.

 

Activity (Text Book Page No. 54)

 

Question 1. Complete the following metre to centimetre conversion table.

Answer: There are 100 centimetres in 1 metre. To convert metres to centimetres, we multiply the number of metres by 100. This relationship is very important for everyday measurements.In simple words: To change metres into centimetres, you just multiply the number of metres by 100.

🎯 Exam Tip: Remember the basic conversion: 1 metre = 100 centimetres. This is a fundamental concept for all length conversions.

 

Question 2. Using the metre scale, find the length of the classroom door and convert the measurement from metre into centimetre.
Answer: This activity needs to be done by the students themselves. They should first measure the classroom door in metres using a metre scale, and then convert that measurement into centimetres. For instance, if the door is 2 metres tall, it would be 200 centimetres. This practical application helps solidify understanding of length units.
In simple words: Students should measure the classroom door in metres, then change that number to centimetres (remember 1 metre is 100 centimetres).

🎯 Exam Tip: When converting metres to centimetres, multiply the metre value by 100. When converting centimetres to metres, divide the centimetre value by 100.

 

Activity (Text Book Page No. 58)

 

Question. Measure the height of any ten of your classmates and write in centimetre.
Answer: This is a practical activity for students to complete on their own. They need to use a measuring tape or scale to find the height of ten classmates and record each height in centimetres. This helps them practice measurement and data collection. Knowing average heights can be useful for things like choosing clothes or sports equipment.
In simple words: Students should measure ten friends' heights and write down how many centimetres tall each person is.

🎯 Exam Tip: Always make sure the measuring tape is straight and stretched properly from the floor to the top of the head for accurate height measurements.

 

Group Activity (Text Book Page No. 52)

 

Question. Observe the map and answer the following:
1. Which is the longest route from Cuddalore to Chennai?
2. Which is the shortest route from Cuddalore to Chennai?
3. Find the longest and the shortest distance.
4. Find the shortest distance between
(i) Madurai to Chennai
(ii) Trichy to Coimbatore
(iii) Chennai to Coimbatore.
Answer: This activity requires students to carefully examine the provided map and calculate distances between different cities. They need to identify various routes and their total lengths to determine the longest and shortest paths. This helps in developing map-reading skills and understanding distance calculations. For example, they will need to add up segments like "Cuddalore to Viluppuram" and "Viluppuram to Chennai" to find a route's total length.
In simple words: Students must look at the map and figure out the longest and shortest paths between cities by adding up the numbers on the roads.

🎯 Exam Tip: When working with maps, always trace all possible routes between two points and add up the distances for each route before comparing to find the longest or shortest one.

 

Estimation (Text Book Page No. 60)

 

Question 1. Look at the map and complete the following. The longest distance between Meera's house and the fruit shop is ______.
Answer: (c) 39 km
In simple words: Looking at the map, the longest path from Meera's house to the fruit shop is 39 kilometres.

🎯 Exam Tip: Always consider all possible paths on a map and sum up the distances for each path before deciding which is the longest or shortest.

 

Question 2. The shortest distance between Meera's house and Meera's uncle house ______.
Answer: (c) 30 km
In simple words: The shortest way to go from Meera's house to her uncle's house, according to the map, is 30 kilometres.

🎯 Exam Tip: When finding the shortest distance, look for the most direct path without unnecessary detours, adding up all segments. Always consider if the path goes through a common point that makes it shorter.

 

Question 3. The longest distance between Meera's uncle house and market ______.
Answer: (c) 46 km
In simple words: The longest distance between Meera's uncle's house and the market is 46 kilometres, based on the map.

🎯 Exam Tip: For "longest distance" questions, make sure to consider paths that include multiple turns or go through additional locations, as these often add up to a greater total distance.

 

Question 4. The shortest distance between school and fruit shop ______.
Answer: (c) 35 km
In simple words: The map shows that the quickest way to get from the school to the fruit shop is 35 kilometres.

🎯 Exam Tip: To confirm the shortest distance, always compare all reasonable paths. Sometimes a slightly longer-looking path on the map might have a shorter numerical distance.

 

Question 5. Which place is the longest from Meera's house ______.
Answer: (c) fruit shop
In simple words: Out of all the places on the map, the fruit shop is the farthest from Meera's house.

🎯 Exam Tip: When identifying the "longest from," calculate the distance to each destination from the starting point and then compare the totals.

 

Question 6. Which place is the shortest from Meera's house ______.
Answer: (c) Market
In simple words: The market is the closest place to Meera's house on the map.

🎯 Exam Tip: To find the "shortest from," calculate the distance to each destination from the starting point and compare all the results to find the smallest number.

 

Question 7. Distance between Meera's house and the school ______.
Answer: (c) 20 km
In simple words: The distance between Meera's house and the school is 20 kilometres.

🎯 Exam Tip: For direct distance questions, simply read the value provided on the path between the two locations on the map.