Rani’s Gift (Measurement)

Given: We use a textbook as a non-standard unit of measurement.

Concept: We can measure length by placing the textbook end-to-end along the object and counting how many times it fits.

Note: Answers will vary for each student depending on the size of their textbook and the actual dimensions of the objects in their classroom. A sample answer is given below.

| Objects | Estimated length | Actual length |
|---|---|---|
| Desk | 3 textbooks | 3 textbooks |
| Blackboard | 8 textbooks | 9 textbooks |
| Window | 4 textbooks | 4 textbooks |

Final Answer: Students should place the textbook along each object, count carefully, and record both their estimate and the actual measurement.

Given: Kavita needs to reach school quickly.

Concept: The shortest path takes the least time to travel.

Working: Among the paths shown in the picture, we compare their lengths. The path that is most direct (covers the least distance) is the shortest path.

Final Answer: Kavita should take the shortest (most direct) path to reach school fast. Students should mark the shortest route in the picture. (Since the figure is not visible, students should look at the picture and mark the path that appears to be the most direct/straight route from home to school.)

Given: Multiple paths are shown from point A to point B.

Concept: A longer path covers more distance; a shorter path covers less distance. We can verify by using a thread — place the thread along each path, then measure the thread to compare.

Working:
- Place a thread along each path from A to B.
- Compare the lengths of thread for each path.
- The path that uses the longest piece of thread is the longest path.
- The path that uses the shortest piece of thread is the shortest path.

Final Answer: (Since the figures are not visible, students should use a thread to trace each path, compare the lengths, and identify the longest path. For the shortest path, draw the most direct route from A to B.)

Given: A picture showing animals measured in blocks.

Concept: We count the number of blocks stacked up to the height of the animal.

Final Answer: The giraffe is 10 blocks tall. (Students should count the blocks alongside the giraffe in the picture. The answer may vary based on the actual figure; count carefully.)

Given: One of the animals measures 7 blocks in height.

Concept: We identify which animal's height equals 7 blocks by counting.

Final Answer: The elephant is 7 blocks tall. (Students should check the picture and identify the animal that measures exactly 7 blocks.)

Given: A picture of a monkey measured against blocks.

Concept: Count the number of blocks equal to the monkey's height.

Final Answer: The monkey is 4 blocks tall. (Students should count the blocks alongside the monkey in the picture.)

Given: A picture of an elephant measured against blocks.

Concept: Count the number of blocks equal to the elephant's height.

Final Answer: The elephant is 7 blocks tall. (Students should count the blocks alongside the elephant in the picture.)

Given: We trace our hand on paper and count the number of lines (grid lines) it covers.

Concept: This is a non-standard measurement activity where grid lines act as units.

Working:
1. Place your hand flat on the paper.
2. Trace the outline of your hand with a pencil.
3. Count the number of lines (horizontal or vertical grid lines) that fall within the traced hand.

Final Answer: The answer will vary for each student. For example, a student's hand may be about 6–8 lines long. Students should trace their hand and count carefully.

Given: We use non-standard units (eraser, blocks, or pencil) to measure length.

Concept: Non-standard measurement means using everyday objects as units instead of a ruler.

Working: Place the chosen tool (e.g., a pencil) end-to-end along the object and count how many times it fits.

Sample Answers (will vary for each student):

| Object | Tool Used | Measurement |
|---|---|---|
| Wall of house | Pencil | 20 pencils |
| Length of bed | Eraser | 15 erasers |
| Length of door | Blocks | 18 blocks |

Final Answer: Students should measure each object using their chosen tool and record the number of units.

Given: Comparing weights of vegetables from the picture of a balance/see-saw.

Final Answer: Muskmelon is heavier than carrot. ✓ (This is already given as an example.)

Given: A picture showing vegetables on a balance for comparison.

Concept: The vegetable that goes down on the balance is heavier; the one that goes up is lighter.

Final Answer: Capsicum is lighter than muskmelon (or pumpkin/watermelon — any vegetable heavier than capsicum as shown in the picture).

Given: Comparing weights of vegetables from the picture.

Final Answer: Pumpkin is heavier than muskmelon. (Students should look at the picture and write any correct pair where one vegetable is heavier than the other.)

Given: Comparing weights of vegetables from the picture.

Final Answer: Carrot is lighter than capsicum. (Students should look at the picture and write any correct pair where one vegetable is lighter than the other.)

Given: Comparing all vegetables shown in the picture.

Concept: The heaviest vegetable is the one that outweighs all others.

Final Answer: Pumpkin (or Watermelon) is the heaviest of all.

Given: Comparing all vegetables shown in the picture.

Concept: The lightest vegetable is the one that weighs less than all others.

Final Answer: Carrot is the lightest of all.

Given: A group of objects shown in the picture.

Concept: We compare the weights of objects visually or by general knowledge. The lightest object is the one that weighs the least.

Final Answer: Students should look at the objects in group A and circle the one that is lightest. (Since the figure is not visible, students should use their knowledge — for example, a feather is lighter than a stone.)

Given: A group of objects shown in the picture.

Concept: Compare the weights of all objects in the group and identify the lightest.

Final Answer: Students should look at the objects in group B and circle the lightest one. (Since the figure is not visible, students should compare the objects shown and circle the one that appears/is known to be the lightest.)

Given: A balance scale with vegetables/fruits on each side.

Concept: The heavier side of the balance goes down. The lighter side goes up.

Working: Look at the balance in the picture. The side that is lower (goes down) has the heavier item — mark it H. The side that is higher (goes up) has the lighter item — mark it L. Tick the item that makes the balance go down.

Final Answer: Tick the heavier item (the one on the lower side of the balance) and mark it H. Mark the lighter item L. (Students should refer to the picture for the specific vegetables/fruits.)

Given: A balance scale with vegetables/fruits on each side.

Concept: The heavier side goes down; the lighter side goes up.

Final Answer: Tick the item on the lower/heavier side and mark it H; mark the other item L. (Students should refer to the picture.)

Given: A balance scale with vegetables/fruits on each side.

Concept: The heavier side goes down; the lighter side goes up.

Final Answer: Tick the item on the lower/heavier side and mark it H; mark the other item L. (Students should refer to the picture.)

Given: A balance scale with vegetables/fruits on each side.

Concept: The heavier side goes down; the lighter side goes up.

Final Answer: Tick the item on the lower/heavier side and mark it H; mark the other item L. (Students should refer to the picture.)

Given: Two paper bags of the same size — one filled with sand, one filled with dry leaves.

Concept: Even if two objects are the same size, they can have different weights. Weight depends on the material, not just the size.

Working: Hold one bag in each hand and feel the difference.

Final Answer: The bag filled with sand is heavier than the bag filled with dry leaves. This shows that size and weight are different — a bigger object is not always heavier.

Given: A see-saw picture showing watermelon on one side and mangoes on the other side.

Concept: A balance/see-saw is level when both sides have equal weight.

Working: Count the number of mangoes shown on the see-saw that make it balance with the watermelon.

Final Answer: Students should count the mangoes in the picture. (Based on typical versions of this activity, 6 mangoes balance the watermelon. Students should verify from their picture.)

Given:
- Weight of 1 watermelon = Weight of 6 mangoes (from part A)
- Weight of 1 coconut = Weight of 2 mangoes

Concept: We use the relationship between coconut and mango weights to find how many coconuts equal the watermelon.

Working:
$$\text{Weight of watermelon} = 6 \text{ mangoes}$$
$$\text{Weight of 1 coconut} = 2 \text{ mangoes}$$
$$\text{Number of coconuts} = \frac{6}{2} = 3$$

Final Answer: 3 coconuts will balance the watermelon.

Given: This is a personal observation and data collection activity.

Concept: We compare our weight with others to understand more, less, and equal.

Sample Answer (will vary for each student):

A. Almost the same as me: My friend Riya (we are both in Class 2)
B. More than me: My father, my mother, my elder brother
C. Less than me: My younger sister, my baby cousin

Places to check weight: Hospital, pharmacy (medical shop), gym, doctor's clinic.

Final Answer: Students should fill in names of their own family members/friends based on their observation. They should also find out their own weight by visiting a weighing scale at a hospital, pharmacy, or home.

Given:
- For 1 glass of nimbu pani:
- Water: 1 glass
- Sugar: 1 spoon
- Lemon juice: 2 spoons
- Salt: 1 pinch
- Raghu needs to make 3 glasses.

Concept: To make 3 glasses, multiply each ingredient by 3.

Working:
$$\text{Water} = 1 \times 3 = 3 \text{ glasses}$$
$$\text{Sugar} = 1 \times 3 = 3 \text{ spoons}$$
$$\text{Lemon juice} = 2 \times 3 = 6 \text{ spoons}$$
$$\text{Salt} = 1 \times 3 = 3 \text{ pinches}$$

Final Answer:
- Water: 3 glasses
- Lemon juice: 6 spoons
- Sugar: 3 spoons
- Salt: 3 pinches

Given: Raghu's bottle holds 4 glasses of water.

Concept: Different bottles can hold different amounts (capacity) of water.

Working: Fill your bottle with water using a glass, counting how many glasses it takes.

Sample Answer (will vary for each student):
A. My bottle can be filled with 4 glasses of water.
B. My friend's bottle can be filled with 5 glasses of water.
C. My friend's bottle fills with more amount of water than mine.

Final Answer: Students should actually fill their bottles using a glass and count. The answers will differ for each student.

Given: Each student has measured how many glasses fill their own bottle.

Concept: We compare the capacity of different bottles.

Working: Compare the number of glasses needed to fill each friend's bottle with the number needed to fill your own bottle.

Sample Answer (will vary):
A. Equal water as mine: Priya (her bottle also holds 4 glasses)
B. Less water than mine: Amit (his bottle holds only 3 glasses)
C. More water than mine: Sunita (her bottle holds 6 glasses)

Final Answer: Students should write the names of their actual friends based on the measurements they collected.