Chapter 11: Data Handling
2nd StandardMathematics
Data Handling - Chapter Summary
# Data Handling
## Overview
In the chapter **“Data Handling,”** students learn how to collect, organise, and interpret simple data using tables and pictographs. The chapter uses real-life contexts such as favourite colours, fruits, transport, and games to help children understand data handling. It also includes puzzles and number tricks to build logical thinking.
---
## Key Topics Covered
### 1. Favourite Colours
- **Activity**: Children observe a chart showing favourite colours of classmates.
- **Task**: Fill in a table with colour-wise count and answer questions like:
- Most liked colour
- Least liked colour
- Comparison between different colours
- **Learning Outcome**: Understanding bar/table data and making comparisons.
---
### 2. Fruit Party (Favourite Fruits)
- **Activity**: A table represents the number of students liking each fruit.
- **Tasks**: Answer questions such as:
- Count total children
- Most and least liked fruits
- Compare preferences (e.g. apple vs guava)
- **Learning Outcome**: Interpreting tabular data and using terms like “more than,” “less than,” and “equal to.”
---
### 3. Modes of Transport to School
- **Chart**: Pictograph using smiley faces to represent number of students using different transport (bus, bike, bicycle, etc.).
- **Tasks**:
- Identify which transport mode is used the most/least.
- Compare between transport types.
- **Learning Outcome**: Understanding pictographs and comparative data reading.
---
### 4. Games We Play
- **Activity**: Children record how many like which games (e.g., Kabaddi, Gilli-danda, Cricket).
- **Tasks**:
- Find most/least liked games
- Draw pictograph using faces for numbers
- **Learning Outcome**: Translating data to visual representation.
---
### 5. Vegetables We Like
- **Activity**: Survey among students about their favourite vegetables.
- **Tasks**:
- Fill table
- Compare vegetables based on popularity
- **Learning Outcome**: Practice of basic survey and data analysis.
---
### 6. Families and Grandparents
- **Project**: Students survey local families:
- How many live with both/one/no grandparents
- **Additional Activity**: Count family members in each home
- **Learning Outcome**: Real-life data gathering and table completion.
---
### 7. Logic and Number Puzzles
- Activities include:
- Completing patterns and pictures
- Finding numbers and shapes
- Logic puzzles like:
- A math trick involving doubling and subtracting
- Counting ways for a cat or ant to return home
- Forming two-digit numbers from single digits
- Calculating total from selected numbers
- **Learning Outcome**: Critical thinking, logical reasoning, and number manipulation.
---
## New Terms and Simple Definitions
| Term | Simple Definition |
|------------------|-----------------------------------------------------------------------------------|
| Data | Information collected (like what colour or fruit children like) |
| Table | A way to show data in rows and columns |
| Pictograph | Picture chart where each symbol stands for a number |
| More than | Greater in number |
| Less than | Smaller in number |
| Equal to | Same in number |
| Compare | To look at differences or similarities |
| Pattern | A repeated design or sequence |
| Mode of transport| The way children come to school (bus, bike, etc.) |
| Survey | Asking people questions to collect information |
---
## Practice Sums
### Easy (3)
1. **If 5 children like mangoes and 3 like bananas, which fruit is more liked?**
**Answer**: Mangoes – 5 is more than 3.
2. **Draw a pictograph where one smiley = 1 child. If 4 children walk to school, draw 4 smileys.**
**Answer**: 🙂 🙂 🙂 🙂
3. **10 children like cricket, 7 like football. How many more like cricket?**
**Answer**: 10 - 7 = 3 more children like cricket.
---
### Medium (2)
4. **In a fruit party, 6 children like guava, 6 like orange. Which fruit is more liked?**
**Answer**: Both are liked equally.
5. **Make a table of transport: 3 walk, 2 cycle, 5 use bus. Which is most used?**
**Answer**: Bus – 5 students.
---
### Difficult (3)
6. **If 3 children like red, 2 like blue, 4 like green and 1 likes yellow, which is least liked?**
**Answer**: Yellow – only 1 child likes it.
7. **Draw a table with 5 children liking cricket, 4 kabaddi, 3 pithu. Use this to write a pictograph (1 face = 1 child).**
**Answer**: Cricket 🙂🙂🙂🙂🙂; Kabaddi 🙂🙂🙂🙂; Pithu 🙂🙂🙂
8. **If 2 families live with both grandparents, 3 with one grandparent and 5 with none, how many families were surveyed?**
**Answer**: 2 + 3 + 5 = 10 families.
---
### Very Difficult (2)
9. **In a puzzle: Think of a number → double it → add 8 → subtract half → subtract starting number. If result is 4, what is the number?**
**Answer**: Let the number be x
2x + 8 - x - x = 4
8 = 4
So this is always 4 for any number! It’s a trick question.
10. **You cut a 6-metre rope 1 metre at a time. How many cuts are needed?**
**Answer**: 5 cuts (each cut makes one new piece, so 5 cuts make 6 pieces).
---
## Overview
In the chapter **“Data Handling,”** students learn how to collect, organise, and interpret simple data using tables and pictographs. The chapter uses real-life contexts such as favourite colours, fruits, transport, and games to help children understand data handling. It also includes puzzles and number tricks to build logical thinking.
---
## Key Topics Covered
### 1. Favourite Colours
- **Activity**: Children observe a chart showing favourite colours of classmates.
- **Task**: Fill in a table with colour-wise count and answer questions like:
- Most liked colour
- Least liked colour
- Comparison between different colours
- **Learning Outcome**: Understanding bar/table data and making comparisons.
---
### 2. Fruit Party (Favourite Fruits)
- **Activity**: A table represents the number of students liking each fruit.
- **Tasks**: Answer questions such as:
- Count total children
- Most and least liked fruits
- Compare preferences (e.g. apple vs guava)
- **Learning Outcome**: Interpreting tabular data and using terms like “more than,” “less than,” and “equal to.”
---
### 3. Modes of Transport to School
- **Chart**: Pictograph using smiley faces to represent number of students using different transport (bus, bike, bicycle, etc.).
- **Tasks**:
- Identify which transport mode is used the most/least.
- Compare between transport types.
- **Learning Outcome**: Understanding pictographs and comparative data reading.
---
### 4. Games We Play
- **Activity**: Children record how many like which games (e.g., Kabaddi, Gilli-danda, Cricket).
- **Tasks**:
- Find most/least liked games
- Draw pictograph using faces for numbers
- **Learning Outcome**: Translating data to visual representation.
---
### 5. Vegetables We Like
- **Activity**: Survey among students about their favourite vegetables.
- **Tasks**:
- Fill table
- Compare vegetables based on popularity
- **Learning Outcome**: Practice of basic survey and data analysis.
---
### 6. Families and Grandparents
- **Project**: Students survey local families:
- How many live with both/one/no grandparents
- **Additional Activity**: Count family members in each home
- **Learning Outcome**: Real-life data gathering and table completion.
---
### 7. Logic and Number Puzzles
- Activities include:
- Completing patterns and pictures
- Finding numbers and shapes
- Logic puzzles like:
- A math trick involving doubling and subtracting
- Counting ways for a cat or ant to return home
- Forming two-digit numbers from single digits
- Calculating total from selected numbers
- **Learning Outcome**: Critical thinking, logical reasoning, and number manipulation.
---
## New Terms and Simple Definitions
| Term | Simple Definition |
|------------------|-----------------------------------------------------------------------------------|
| Data | Information collected (like what colour or fruit children like) |
| Table | A way to show data in rows and columns |
| Pictograph | Picture chart where each symbol stands for a number |
| More than | Greater in number |
| Less than | Smaller in number |
| Equal to | Same in number |
| Compare | To look at differences or similarities |
| Pattern | A repeated design or sequence |
| Mode of transport| The way children come to school (bus, bike, etc.) |
| Survey | Asking people questions to collect information |
---
## Practice Sums
### Easy (3)
1. **If 5 children like mangoes and 3 like bananas, which fruit is more liked?**
**Answer**: Mangoes – 5 is more than 3.
2. **Draw a pictograph where one smiley = 1 child. If 4 children walk to school, draw 4 smileys.**
**Answer**: 🙂 🙂 🙂 🙂
3. **10 children like cricket, 7 like football. How many more like cricket?**
**Answer**: 10 - 7 = 3 more children like cricket.
---
### Medium (2)
4. **In a fruit party, 6 children like guava, 6 like orange. Which fruit is more liked?**
**Answer**: Both are liked equally.
5. **Make a table of transport: 3 walk, 2 cycle, 5 use bus. Which is most used?**
**Answer**: Bus – 5 students.
---
### Difficult (3)
6. **If 3 children like red, 2 like blue, 4 like green and 1 likes yellow, which is least liked?**
**Answer**: Yellow – only 1 child likes it.
7. **Draw a table with 5 children liking cricket, 4 kabaddi, 3 pithu. Use this to write a pictograph (1 face = 1 child).**
**Answer**: Cricket 🙂🙂🙂🙂🙂; Kabaddi 🙂🙂🙂🙂; Pithu 🙂🙂🙂
8. **If 2 families live with both grandparents, 3 with one grandparent and 5 with none, how many families were surveyed?**
**Answer**: 2 + 3 + 5 = 10 families.
---
### Very Difficult (2)
9. **In a puzzle: Think of a number → double it → add 8 → subtract half → subtract starting number. If result is 4, what is the number?**
**Answer**: Let the number be x
2x + 8 - x - x = 4
8 = 4
So this is always 4 for any number! It’s a trick question.
10. **You cut a 6-metre rope 1 metre at a time. How many cuts are needed?**
**Answer**: 5 cuts (each cut makes one new piece, so 5 cuts make 6 pieces).
---
Data Handling
Overview
In the chapter “Data Handling,” students learn how to collect, organise, and interpret simple data using tables and pictographs. The chapter uses real-life contexts such as favourite colours, fruits, transport, and games to help children understand data handling. It also includes puzzles and number tricks to build logical thinking.
Key Topics Covered
1. Favourite Colours
- Activity: Children observe a chart showing favourite colours of classmates.
- Task: Fill in a table with colour-wise count and answer questions like:
- Most liked colour
- Least liked colour
- Comparison between different colours
- Learning Outcome: Understanding bar/table data and making comparisons.
2. Fruit Party (Favourite Fruits)
- Activity: A table represents the number of students liking each fruit.
- Tasks: Answer questions such as:
- Count total children
- Most and least liked fruits
- Compare preferences (e.g. apple vs guava)
- Learning Outcome: Interpreting tabular data and using terms like “more than,” “less than,” and “equal to.”
3. Modes of Transport to School
- Chart: Pictograph using smiley faces to represent number of students using different transport (bus, bike, bicycle, etc.).
- Tasks:
- Identify which transport mode is used the most/least.
- Compare between transport types.
- Learning Outcome: Understanding pictographs and comparative data reading.
4. Games We Play
- Activity: Children record how many like which games (e.g., Kabaddi, Gilli-danda, Cricket).
- Tasks:
- Find most/least liked games
- Draw pictograph using faces for numbers
- Learning Outcome: Translating data to visual representation.
5. Vegetables We Like
- Activity: Survey among students about their favourite vegetables.
- Tasks:
- Fill table
- Compare vegetables based on popularity
- Learning Outcome: Practice of basic survey and data analysis.
6. Families and Grandparents
- Project: Students survey local families:
- How many live with both/one/no grandparents
- Additional Activity: Count family members in each home
- Learning Outcome: Real-life data gathering and table completion.
7. Logic and Number Puzzles
- Activities include:
- Completing patterns and pictures
- Finding numbers and shapes
- Logic puzzles like:
- A math trick involving doubling and subtracting
- Counting ways for a cat or ant to return home
- Forming two-digit numbers from single digits
- Calculating total from selected numbers
- Learning Outcome: Critical thinking, logical reasoning, and number manipulation.
New Terms and Simple Definitions
| Term | Simple Definition |
|---|---|
| Data | Information collected (like what colour or fruit children like) |
| Table | A way to show data in rows and columns |
| Pictograph | Picture chart where each symbol stands for a number |
| More than | Greater in number |
| Less than | Smaller in number |
| Equal to | Same in number |
| Compare | To look at differences or similarities |
| Pattern | A repeated design or sequence |
| Mode of transport | The way children come to school (bus, bike, etc.) |
| Survey | Asking people questions to collect information |
Practice Sums
Easy (3)
-
If 5 children like mangoes and 3 like bananas, which fruit is more liked?
Answer: Mangoes – 5 is more than 3. -
Draw a pictograph where one smiley = 1 child. If 4 children walk to school, draw 4 smileys.
Answer: 🙂 🙂 🙂 🙂 -
10 children like cricket, 7 like football. How many more like cricket?
Answer: 10 - 7 = 3 more children like cricket.
Medium (2)
-
In a fruit party, 6 children like guava, 6 like orange. Which fruit is more liked?
Answer: Both are liked equally. -
Make a table of transport: 3 walk, 2 cycle, 5 use bus. Which is most used?
Answer: Bus – 5 students.
Difficult (3)
-
If 3 children like red, 2 like blue, 4 like green and 1 likes yellow, which is least liked?
Answer: Yellow – only 1 child likes it. -
Draw a table with 5 children liking cricket, 4 kabaddi, 3 pithu. Use this to write a pictograph (1 face = 1 child).
Answer: Cricket 🙂🙂🙂🙂🙂; Kabaddi 🙂🙂🙂🙂; Pithu 🙂🙂🙂 -
If 2 families live with both grandparents, 3 with one grandparent and 5 with none, how many families were surveyed?
Answer: 2 + 3 + 5 = 10 families.
Very Difficult (2)
-
In a puzzle: Think of a number → double it → add 8 → subtract half → subtract starting number. If result is 4, what is the number?
Answer: Let the number be x
2x + 8 - x - x = 4
8 = 4
So this is always 4 for any number! It’s a trick question. -
You cut a 6-metre rope 1 metre at a time. How many cuts are needed?
Answer: 5 cuts (each cut makes one new piece, so 5 cuts make 6 pieces).