Page 27 - CT_AI_Class-3

or "How many plants are there in your garden?" you simply count the objects and
In which group does the number 40 not belong?
have your answer. However, when questions are asked to a group and the group
a) 5, 10, 15, 20, …. b) 8, 16, 24, 32, ….
gives different answers, it becomes quite difficult to count each data. This is where
c) 6, 12, 18, 24, …. d) 4, 8, 12, 16, …. a survey comes in. A survey is when you ask many people the same question to get

their answers.
Here are some more additional examples of sorting data: For example, let’s say you ask your class, "What is your favourite sport?" Some

 By name: When sorting a list of people, you can group them alphabetically, from answers could be:
A to Z.
 Football
 By height: If you have a group of people or objects, you can sort them by their  Cricket

height, from shortest to tallest, tallest to shortest.
 Basketball
 By category: You can sort digital images by category, like vacation photos,

project images or family pictures. Each of these answers is data. To find out which sport is the most popular, you can
count how many times each answer is given. But it might be hard to keep track of
 By subjects: Books or files can be sorted based on subject.
all the answers, so we use tally marks to make counting easier.
 By date: You can sort events, documents or photos by the date they were created
or occurred, from the earliest to the latest or vice versa. Using Tally Marks to Count

21 st Tally marks are a system of counting used to keep track of fact bits
Century #Critical Thinking
interdisciplinary activity Skills numbers in an organised way. A vertical line (|) represents Tally marks, one of
one count and every fifth count is marked by a diagonal the earliest methods
Write down a list of at least 10 city names in your notebook. Then, sort them according to a

suitable characteristic, such as alphabetical order. Explain why you chose that particular way line across the first four vertical lines, creating a bundle of counting, have
to sort the cities. Next, collect pictures of different plants and animals. Sort them into groups, (I I I I), making counting faster and easier. been used since the
such as by where they live or by their size. Explain why you decided to sort them in that way. For example, in a class of 72 students, a survey was Stone Age.
conducted to ask their favourite sport between cricket,

21 st football, chess, tennis and basketball. Using tally marks,
Century #Technology Literacy
ai in action Skills the data looked like this:

The PBS Kids - Sid the Science Kid: Sorting Box game is an interactive and
educational online game designed for younger children to help them understand the concept of Favourite Sport Tally Marks Count
sorting. It is ideal for building foundational cognitive skills, such as categorisation and classification, Cricket I I I I I I I I I I I I I I I I I I 22
through fun and engaging gameplay.
Visit the given link or scan the QR code to play the game: Football I I I I I I I I I I I I 14

https://pbskids.org/games/play/sorting-box/487 Basketball I I I I I I I I 10
Tennis I I I I I I I I I I I I I I I 18

ASKING AND COUNTING Chess I I I I I I I 8

To collect data, questions need to be asked. Sometimes collecting data is simple. As you can see from the tally, cricket is the most popular sport, followed by tennis,

For example, if you are asked, "How many pencils are there in your box?" football, basketball and then chess.

Data Around Us 25