NCERT Solutions for Class 4 Maths Chapter 14

The experienced teachers and subject matters at CoolGyan have developed NCERT Solutions for Class 3 Maths Chapter 14 -- Smart Charts. The entire solutions have been developed as per the latest CBSE syllabus. Every solution is easily available on CoolGyan's official website and you can download the pdf format by clicking on the link. You can choose any subject and revise your topics at your pace. If you have any doubt then you can reach out to our teachers from our website. 

NCERT Solutions for Class 4 Maths Chapter 14 – Smart Charts teaches us how to handle data. The concept of handling data is a very important area in Maths. We are always organizing things. We organize our books, wardrobe, timetable, etc. So things are always placed in an organized way. By the end of primary school, students must be able to collect and record data and present it in the form of bar charts, pie charts, and tables. Children must be able to master the topic and draw inferences. 

NCERT Solutions for Class 4 Maths Chapter 14 Smart Charts

Observation

The first thing and the most key aspect of handling data are observing things around us. This means that we need to keep our eyes and ears open when we look at objects in our surroundings. Observation is very essential in order to collect information about anything. If we don’t observe properly then we can miss out on some important aspects and our recording of the information will be incomplete. For example, if we have to keep a record of programs that come on TV and who in the family likes to watch which program then we have to observe our family members for a certain number of days. 


How Do We Classify Things?

Classifying things means collecting information and then grouping them as per the analysis. Basically, we are arranging the information based on its attributes. In simple words, we are collecting information and organizing them. For example, a librarian organizes the books as per their demand or we organize our books as per the timetable. 


Data Handling

Data Handling is the process of collection, organization, and analysis of data and finally its representation with the help of graphs and pie charts.


Uses of Data Handling

We use data handling almost all things in our daily life.

  1. Doctors keep records of their patients.

  2. Recording of water levels in the river.

  3. Librarians keep a record of books borrowed or returned.

  4. Teachers keep a record of student’s performance in the class.

  5. Parents keep a record of household expenses.

In this lesson, we learn three ways of keeping records.

  1. Creating tables

  2. Bar Charts

  3. Pie Charts

1. Creating Tables

Creating tables is also called a frequency distribution table. It helps us make a better understanding of the data given. However, tables are not useful when we have to keep a record of large data. 

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In the above picture, we are keeping a record of how many children are taking different methods of travelling. If we have to keep a record of a larger amount of information then we can use a tally frequency distribution table like the picture below. 

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2. Bar Graph

A bar graph is a graphical representation that is used to represent simple data by using uniform rectangle bars. The width of the rectangle bars always remains the same, only the length or the height of the bars changes. The length of the bar depicts a value. We use bar graphs when we want to compare a few things or if we want to show how many times something is changed over a certain time. 

(Image to be added soon)

In the above bar graph, we are keeping a record of how many fruits are there in a basket in the form of a bar graph. We draw an L-shaped line. We name them the x-axis and y-axis. On the x-axis, we write the name of the fruits and on the y-axis, we mark the values of the fruits, and then according to the values on the y-axis we draw the bars.


3. Pie Chart

A pie chart is a pictorial circular chart that is divided into slices to represent data. We divide the chart into slices just as we make slices in a pizza. Let us look at the pie chart below. We are representing the data on how many children take different methods of travelling in the form of a pie chart. 

                                                   (Image to be added soon)


Conclusion

From this lesson, students have learned a very important area in Maths. In our daily life, we use the concept of data handling in almost everything. We organize our books, wardrobes, timetables, toys, etc. It is important to observe things that we see around us, collect information, and then draw inferences. This topic builds the fundamental concept of collecting records, which is going to be helpful in higher classes. 

FAQs (Frequently Asked Questions)

1. What is data handling? What are the different kinds of handling data?

Data Handling is the process of collection, organization, and analysis of data and finally its representation with the help of graphs and pie charts.

There are various ways of collecting data. 

  1. Creating frequency distribution tables

  2. Bar graph

  3. Pie Chart

2. Why should you learn from CoolGyan?

CoolGyan is an online platform for learning where you can learn anytime and anywhere. CoolGyan has a panel of experienced teachers who understand the ability of the students and tailor-made their teaching accordingly. Students can enjoy flexible timing and they can decide how much to invest time in learning. Personal attention is given to each child. The courses that are available are made as per the curriculum. You have a detailed explanation of all the subjects with the solutions to the exercises. 

3. What are the benefits of CoolGyan’s NCERT Solutions for Class 4 Chapter 14 Smart Charts?

The benefits are:

  1. You have easy access to the study material on the platform.

  2. Subject Experts have created the study material. They are 100% verified.

  3. It covers the entire syllabus as per the guidelines of the Board.

  4. The chapter covers all the concepts of the exercise. 

4. How do CoolGyan’s NCERT solutions help in self-study?

All study materials for CoolGyan’s NCERT solutions are tailor-made and they are explained in a very simple language. Experienced teachers and subject experts have crafted the materials as per the ability of the students so that they can grasp the concepts on their own. There are relevant diagrams for the topics and the concepts are given in steps so that children can understand easily. At the end of each topic, there are faqs given based on the concepts that give you an idea of questions that can come in the exams.

5. What is data handling and what are its uses according to Chapter 14 of Class 4 Maths?

Data handling is the act of gathering, organising, and analysing data before presenting it in the form of graphs and pie charts. We utilise data processing in nearly every aspect of our lives. Patients' records are kept by doctors. The river's water levels are being recorded. Librarians maintain track of books that have been borrowed and returned. Teachers keep track of their student’s progress in class. Parents keep track of their family's finances.

6. What is a bar graph according to Chapter 14 of Class 4 Maths?

According to Chapter 14 of Class 4 Maths, a bar graph is a graphical representation that uses uniform rectangular bars to represent basic data. The width of the rectangular bars does not vary; only the length or height of the bars does. A value is represented by the length of the bar. When we want to compare a few things or demonstrate how many times something has changed over a period of time, we use bar graphs.

7. What is a frequency distribution table according to Chapter 14 of Class 4 Maths?


Creating tables are sometimes known as frequency distribution tables. It assists us in gaining a better grasp of the information provided. Tables, on the other hand, are ineffective for keeping track of enormous amounts of data. To put it another way, we gather information, organise it, and then analyse it. A librarian, for example, organises books according to demand, whereas we organise our books according to the timetable.

8. How does observation help in data handling according to Chapter 14 of Class 4 Maths?

Observing what is going on around us is the first and most important component of data management. This implies that when we look at items in our environment, we must keep our eyes and ears alert. In order to acquire knowledge about anything, observation is critical. If we don't pay attention, we could overlook certain crucial details, and our information recording will be incomplete. For example, if we need to keep track of what programmes are shown on television and who in the family prefers to watch which shows, we must monitor our family members for a set number of days.

9. Is Chapter 14 of Class 4 Maths easy?

Chapter 14 of Class 4 Maths is very relatable and with practice, it can become easy as well. Students have gained knowledge in a critical area of mathematics as a result of this session. We employ the notion of data handling in nearly every aspect of our lives. We arrange our books, clothes, schedules, and toys, among other things. This topic introduces the basic notion of gathering records, which will be useful in later lectures. Use the solutions provided on CoolGyan website and CoolGyan Mobile app to guide you, free of cost.