NCERT Solutions for Class 1 Maths Chapter 07 Lina's Family

Lina’s family invited all the family members for a get together.

Question A. How many members are there in Lina’s family?
Answer: There are 10 members in Lina’s family.
In simple words: When we count all the people in Lina's family photo, we find ten family members.

Exam Tip: Count the family members one by one from left to right to make sure you do not miss anyone.

Question B. Tick the tallest member in the family.
Answer: Lina's father is the tallest member of the family.
In simple words: Lina's father stands the highest, so he is the tallest person in the family.

Exam Tip: Look at the heads of the family members; the person whose head is highest up is the tallest.

Question C. Draw a cap on the shortest family member.
Answer: The shortest member is the tiny baby standing in the front, who gets a little cap.
In simple words: The little baby is the shortest, so we draw a cute cap on the baby's head.

Exam Tip: The shortest person is the one who stands closest to the ground.

Question D. Who is taller than Lina’s mother but shorter than Lina’s father?
Answer: Lina's uncle (Chacha) is taller than her mother but shorter than her father.
In simple words: Lina's uncle is right in the middle - he is taller than her mother but shorter than her father.

Exam Tip: To compare three heights, look at the middle height first to find the person who is between the tallest and the shortest.

Question E. Who is the tallest and shortest member of your family?
Answer: In my family, my father is the tallest member, and my baby sister is the shortest member.
In simple words: My dad is the tallest person in our house, and my little sister is the shortest.

Exam Tip: You can stand back-to-back with your family members to see who is taller and who is shorter.

Question F. Who is the tallest child in your class?
Answer: Amit is the tallest child in my class.
In simple words: Amit is the tallest student in our classroom.

Exam Tip: Stand in a straight line during morning assembly to easily see who is the tallest child.

Question G. How many children in your classroom are taller than you?
Answer: There are 15 children in my classroom who are taller than me.
In simple words: Fifteen classmates in my room are taller than I am.

Exam Tip: Stand straight against a flat wall to compare heights with your classmates accurately.

Question. Lina lives in a hut-shaped house in a hilly area. Can you locate her house in the picture? Circle the correct options:
A. Her house is nearest to/farthest from the shop and nearest to/farthest from the school.
B. The school is nearest to/farthest from the shop and nearest to/farthest from red roof houses.
C. The child is nearest to/farthest from the school bus and nearest to/farthest from the school.
Answer:
A. Her house is nearest to the shop and farthest from the school.
B. The school is farthest from the shop and farthest from the red roof houses.
C. The child is nearest to the school bus and farthest from the school.
In simple words: We look at the hill drawing to see which things are close (nearest) and which things are far away (farthest).

Exam Tip: "Nearest" means the shortest path or gap, and "farthest" means the longest path or gap between two objects.

Question. Let us Do
A. Tick the one which is longest. (i. Three pencils, ii. Three girls with braided hair)
B. Tick the one which is shortest. (i. Three chillies, ii. Three shirts)
C. Tick the one which is thickest. (i. Three stacks of books, ii. Three pencil cases)
D. Tick the one which is thinnest. (i. Three trees, ii. Three burning candles)
Answer:
* A. Longest: i. The blue-striped pencil (third pencil). ii. The first girl on the left with the longest hair braids.
* B. Shortest: i. The small green chilli on the far left. ii. The small pink shirt on the far right.
* C. Thickest: i. The red stack of books lying at the bottom. ii. The large green pencil case at the top.
* D. Thinnest: i. The tree on the far right with the thinnest trunk. ii. The narrow candle standing in the middle.
In simple words: We look at the objects to compare their lengths and widths, then select the longest, shortest, thickest, or thinnest.

Exam Tip: Thickness refers to how fat or wide an object is, while length refers to how long it stretches from end to end.

Question. Think and Do
* Draw a stick or bamboo longer than this—
* Draw a rope shorter than this—
Answer:
* Stick/bamboo: Draw a straight yellow stick that is longer than the reference stick.
* Rope: Draw a wavy brown rope that is shorter than the reference rope.
In simple words: We draw a longer stick by stretching it out further, and a shorter rope by making it smaller.

Exam Tip: When drawing a longer object, make sure its starting and ending points extend past the original object's length.

Question. Dadi is checking the length of Chitra’s sweater by a handspan. Chitra also wants to find out the length of the stick, table, pencil and notebook using her handspan. Write down the handspans.
Answer:
Chitra's measurements using her handspan are:
* The notebook is 2 handspans long.
* The pencil is 1 handspan long.
* The stick is 3 handspans long.
* The table is 8 handspans long.
In simple words: We can measure the length of things at home using our handspan (the stretch of our open hand).

Exam Tip: A handspan is measured from the tip of the thumb to the tip of the little finger on a fully open hand.

Question. Think and Answer
A. My table is ________ handspans long.
B. My bag is ________ handspans long.
C. My classroom blackboard is ________ handspans long.
D. My Maths book is ________ handspans long.
E. My arm is ________ handspans long.
F. My friend's arm is ________ handspans long.
Can Chitra use a handspan to find the length of all these things? Find out and circle which things around you are shorter than a handspan? Can we use fingers also to find the length of these things?
Answer:
A. My table is 8 handspans long.
B. My bag is 5 handspans long.
C. My classroom blackboard is 12 handspans long.
D. My Maths book is 3 handspans long.
E. My arm is 2 handspans long.
F. My friend's arm is 2 handspans long.
* Smaller objects: The small eraser is shorter than a handspan (marked with a circle). Yes, we can use our fingers to measure very small things.
In simple words: We can use our hands to measure bigger things and our fingers to measure tiny things like erasers.

Exam Tip: For objects smaller than your hand (like an eraser), using finger-widths is much more accurate than using a handspan.

Question. What would you choose, handspan or fingers to find the length of these objects and why? Circle your options in the table. Try to guess before finding the length of these objects.

Answer: We select handspan for longer objects and fingers for smaller objects. The guessed and observed values are shown in the table above.
In simple words: We choose handspans for larger things (like our leg or a bottle) and fingers for smaller things (like a key or a nose).

Exam Tip: Always make a guess first! It helps you build a strong visual sense of size and measurements.

Question. Measure by footspan.

Answer: The guessed and calculated footspan measurements for different rooms and distances are shown in the table above.
In simple words: We can measure longer distances (like across a room) by counting our footsteps (footspans) from heel to toe.

Exam Tip: To measure with footspans, walk in a straight line placing the heel of one foot directly in front of the toe of the other.

Question. Let us Do - A. Tick the heavier object. (i. Bucket vs mug, ii. Watermelon vs orange) B. Tick the lighter object. (i. Salt packet vs bag of rice, ii. School bag vs water bottle)
Answer:
* A. Heavier object:
- i. The large blue bucket is heavier than the small mug.
- ii. The large green watermelon is heavier than the small orange.
* B. Lighter object:
- i. The small packet of salt is lighter than the big bag of rice.
- ii. The small water bottle is lighter than the heavy school bag.
In simple words: Heavy things are hard to lift (like a bucket or watermelon), and light things are easy to lift (like a bottle or salt packet).

Exam Tip: Larger objects made of dense materials are usually heavier than smaller objects.

Question. Let us Do - C. Colour the heavier object. D. Colour the lighter object.
Answer:
* C. Heavier objects to be colored:
- i. The basket with the sleeping cat inside.
- ii. The bucket full of blue water (colored red).
- iii. The bottle filled with blue water.
- iv. The soft purple cushion (much heavier than a feather).
* D. Lighter objects to be colored:
- i. The small green lemon/lime (lighter than a coconut).
- ii. The pink patterned cup (lighter than a tub).
- iii. The small red ball (lighter than a large basketball).
- iv. The empty basket (lighter than a basket full of vegetables).
In simple words: We choose and color the items that weigh more for heavier, and those that weigh less for lighter.

Exam Tip: Adding water or items (like vegetables or a cat) inside a container always makes it heavier.

Question. Let us Talk - A. Who is heavier between you and your friend? How will you find out? Discuss in the class. B. Find out your weight. Can you tell how and where your weight is usually checked?
Answer:
* A. I am slightly heavier than my best friend. My weight is 30 kg, while my friend's weight is 28 kg. We can find out by stepping on a digital weighing scale.
* B. My weight is 30 kg. We can check our weight at a clinic, school, or home using a medical weighing scale.
- Steps to check weight:
1. Choose a proper and accurate weighing scale.
2. Set the scale to zero.
3. Stand straight and still on the scale.
4. Read and record the weight displayed.
5. Compare your results with your friends.
In simple words: We use a weighing scale to see how heavy we are. My weight is thirty kilograms.

Exam Tip: Stand completely still on the center of the weighing scale to get a steady and correct reading.

Question. Let us Do - A. Fill the bucket with water. B. Answer the following questions.
i. How many cups of water will fill your water bottle?
ii. Now fill your friend’s water bottle with the same cup. How many cups of water will fill your friend’s bottle?
iii. Which bottle holds more water?
iv. Try it with another bottle. Which bottle holds less water?
Answer:
* A. Filling the bucket:
- i. It takes 12 jugs of water to fill the bucket.
- ii. It takes 32 glasses of water to fill the same bucket.
- iii. It takes 26 bowls of water to fill the bucket.
* B. Bottle capacity:
- i. My water bottle holds 8 cups of water.
- ii. My friend's water bottle holds 9 cups of water.
- iii. My friend's bottle holds more water because 9 is larger than 8.
- iv. This is a practical activity to try with different bottles.
In simple words: A larger container (like a jug) fills a bucket faster than a smaller container (like a glass).

Exam Tip: A bottle or container that can hold a larger number of cups has a higher capacity.

Question. C. Circle the one which holds more water.
Answer:
The objects that hold more water in each pair are:
* Row 1: The large pink bucket (holds more than the blue mug).
* Row 2: The tall glass (holds more than the small red cup).
* Row 3: The larger clay pot (holds more than the smaller one).
* Row 4: The blue water bottle (holds more than the tiny cup).
* Row 5: The large teapot (holds more than the small glass flask).
In simple words: Bigger containers can hold more water than small containers.

Exam Tip: Capacity is the amount of liquid a container can hold. Larger containers have more capacity.

Question. Tick the amount of water you need for the given activities. (i. For brushing the teeth, ii. For bathing, iii. For preparing 2 glasses of lemon water, iv. For watering a plant)
Answer:
The correct choices for conserving water during daily activities are:
* i. Brushing teeth: We need only a mug full of water (using a bucket wastes too much).
* ii. Bathing: We should use a bucket full of water (using a whole tank wastes water).
* iii. Preparing lemon water: We need only a jug of water to make 2 glasses.
* iv. Watering a single plant: We need only a mug of water to water one plant.
In simple words: We should use only the water we need to avoid wasting it. A mug is enough for brushing, and a bucket is enough for bathing.

Exam Tip: Saving water is important for our planet. Always turn off the tap while brushing or soaping.

Question. Let us Do - A. Discuss why is it important to take water in a bucket for bathing instead of shower or running tap water. B. Tear and paste colourful paper strips to make one portion of the strip short and another longer. The strips should be of different sizes. C. List things which are easier to carry and which are difficult to carry. D. Get bottles, bowls and glasses of different sizes. Now see how many glasses or bowls of water can fill the bottle. Which of these can hold more water?
Answer:
* A. Conserving Water: Using a bucket for bathing helps us use only a limited amount of water, which stops us from wasting water. Showers and running taps let too much water go down the drain.
* B. Paper Strip Craft: Tear colorful paper into different lengths and paste them into two groups: shorter strips on the left and longer strips on the right.
* C. Carrying Items:
- Easier to carry (light): Pen, cup, pencil, candle, eraser box, orange, small water bottle.
- Difficult to carry (heavy): Heavy water tank, large bucket of water, heavy cricket bat, school desk, big watermelon.
* D. Capacity Experiment:
- It takes 3 glasses of water to fill the bottle.
- It takes 4 bowls of water to fill the same bottle.
- The bottle holds more water than a single glass or bowl.
In simple words: We save water by using a bucket instead of a shower. Some things are easy to carry because they are light, and some are hard because they are heavy.

Exam Tip: Always make groups of light and heavy items to understand which things are easy or difficult to carry.