NCERT Solutions for Class 1 Mathematics Joyful-Mathematics (English) Chapter 7

NCERT solutions for Class 1 Maths Chapter Lina's Family – complete answers & explanations

Lina’s Family is an engaging chapter from Class 1 Maths Joyful-Mathematics that introduces children to measurement concepts through everyday family and home activities. It helps students understand length, height, weight, and capacity in simple, relatable ways. This blog provides complete NCERT solutions strictly based on the worksheet, ensuring accuracy and alignment with the original content.

What this NCERT chapter covers?

1. Understanding family members and comparing heights.
2. Locating houses and schools in relation to each other.
3. Learning about the Statue of Unity as an amazing fact.
4. Measuring objects using handspan, fingers, and footspan.
5. Comparing weights and capacities of everyday items.
6. Activities on saving water and practical project work.

How to use these NCERT solutions?

1. First, attempt each question on your own using the worksheet.
2. Use the provided answers to check your work carefully.
3. Parents and teachers can guide children by discussing the activities.
4. Follow the exact order of questions as given in the worksheet for clarity.

Important tips & tricks for students

1. Avoid guessing—measure carefully using handspan, fingers, or footspan.
2. NCERT expects answers exactly as per the worksheet instructions.
3. To score full marks, write answers neatly and in the same format.
4. For activities and speaking tasks, participate actively and write “Answers may vary” where required.

NCERT solutions – complete answer key

Let us talk  
A. Grandparents, parents, Lina, Shanbor (brother), uncles, aunts, cousins → Many members (extended family).  
B. Lina’s Father (as per picture).  
C. Younger female cousin (shortest child in the picture).  
D. Lina’s Uncle is taller than Lina’s mother but shorter than Lina’s father.
E. Activity – students answer about their own family.  
F. Activity – students answer about their class.
G. Activity – students answer individually

House location activity  
A. Her house is nearest to the shop and farthest from the school.  
B. The school is nearest to the shop and farthest from the red roof houses.  
C. The child is nearest to the school bus and farthest from the school.  

Amazing facts  
Statue of Unity – tallest statue in the world, located in Gujarat, India.  

Let us do  
A. Tick the one which is longest.
B. Tick the one which is shortest.
C. Tick the one which is thickest.
D. Tick the one which is thinnest
 

Think and do  
Explanation: Draw a stick or bamboo longer than the given one.  
Draw a rope shorter than the given one.  

Think and answer  
Explanation:  
Students measure using handspan.  
Circle objects shorter than a handspan (e.g., pencil, spoon, key).  
Use fingers for smaller objects.  
A. My table is 6 handspans long.  
B. My bag is 3 handspans long.  
C. My classroom blackboard is 15 handspans long.  
D. My Maths book is 4 handspans long.  
E. My arm is 5 handspans long.  
F. My friend’s arm is 6 handspans long.  

Let us do  
| Name of the things | Circle, what will you use? | My guess | My findings |
|---------------------|----------------------------|----------|-------------|
| Bottle              | handspan or fingers        | Handspan | Handspan    |
| Spoon               | handspan or fingers        | Fingers  | Fingers     |
| Pencil              | handspan or fingers        | Fingers  | Fingers     |
| My friend’s nose    | handspan or fingers        | Fingers  | Fingers     |
| Leg                 | handspan or fingers        | Handspan | Handspan    |
| Key                 | handspan or fingers        | Fingers  | Fingers     |

Explanation: A footspan means measuring distance using the length of your foot. Place one foot in front of the other, heel to toe, and count how many steps (footspans) it takes to cover the distance. Larger spaces like classrooms or rooms will need more footspans, while smaller distances like between a bed and washroom will need fewer.  

Let us do  
A. Tick the heavier object.  
B. Tick the lighter object.  
C. Compare the pictures and color the heavier object.  
D. Compare the pictures and color the lighter object.  

Let us talk  
A. Activity – compare by weighing. 
B. Usually checked using weighing machine at home, clinic, or school.  

Let us do  
A. Explanation: This activity helps children understand capacity measurement. A bucket can hold more water than a jug, glass, or bowl. To find out how many jugs, glasses, or bowls are needed, students actually pour water and count. The smaller the container, the more times it will take to fill the bucket.  

B. Explanation: This activity teaches children about capacity comparison. Using the same cup, we count how many times it takes to fill different bottles. A bigger bottle will need more cups of water, while a smaller bottle will need fewer. By comparing, students learn which bottle holds more or less water.  

Sample answers:  
i. 5 cups of water will fill my water bottle.  
ii. 8 cups of water will fill my friend’s water bottle.  
iii. My friend’s bottle holds more water.  
iv. Another smaller bottle holds less water.  

C. Circle the one which holds more water.

D i. For brushing the teeth – A bucket full of water / A mug full of water  
ii. For bathing – A bucket full of water / A tank  
iii. For preparing 2 glasses of lemon water – A jug of water / A bucket of water  
iv. For watering a plant – A mug of water / A bucket of water  

Project work  
A. Explanation: It is important to use a bucket instead of shower or running tap to save water.  
B. Activity: Paste colourful paper strips – one short, one long.  
C.  
| Easier to carry | Difficult to carry |
|-----------------|--------------------|
| Pen             | Table              |
| Notebook        | Chair              |
| Spoon           | Bed                |

D.Explanation:
By filling a bottle using bowls or glasses, children learn to compare capacity and understand which container can hold more water.
Sample Answer:
When we pour water using a glass and a bowl to fill the bottle, we may need more glasses but fewer bowls. This shows the bowl can hold more water than the glass.

Activity  

Explanation: This activity helps children become aware of how much water they drink daily and why saving water is important.  
- Children should count the number of glasses of water they drink in a day.  
- They should think about what happens when water is left in a glass – instead of throwing it away, it can be given to plants or reused.  
- The discussion also highlights simple ways to save water, such as closing taps when not in use, using a bucket instead of a shower, and reusing water wherever possible.  

Why NCERT solutions help students?  
These solutions prepare students for exams by giving them clear, NCERT-aligned answers. They build concept clarity, ensure confidence in solving questions, and help avoid mistakes. By following the worksheet order, students can practice effectively and score better.  

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