2nd Class

LEARNING OBJECTIVES This lesson will help you to lean

• recording of data using tally marks.
• collecting data and representing in terms of pictograph.
• drawing inferences from the data at the appropriate level.
• organising and displaying data in different way.
• understanding and using the information quickly.

  QUICK CONCEPT REVIEW The information in a list can be in the form of names and numbers. Such information is called data. There are three steps of data handling -   STEPS OF DATA HANDLING

Collection of data

Data collection process includes:

• Asking the right questions to the right people.
• Collecting information from people.
• Organising information in a table (using tally marks).

Example: I want to know the favourite sport of class II. How can I do that? To know the favourite sport of class II we need more...

QUICK CONCEPT REVIEW Swati went to a gift shop. She liked a teddy bear how she can get the teddy bear from the gift shop. Swati has to give money to the shopkeeper to Get the teddy bear.   Currency We need money to buy things. Money can be in form or a note or a coin. In India, currency is used in the form of rupees and Symbol of rupee is Rs. and paise is 'p'. 1 rupee = 100 Paise Or 1 Rs. = 100 p.   Historical preview

• The word rupee is derived from the Sanskrit word rupyakam, meaning a silver cooin.
• Udaya is creator of the rupee symbol. The symbol (Rs.) is a combination of the Latin letter “R” and Devanagri letter “Rs.”
• After Independence, the first coin was introduced in 1950.

                                                                                                             Notes                 Coins                                                                        more...

  LEARINING OBJECTIVES This lesson will help you to:

• define fractions, numerator and denominator
• identify fractions using objects and shapes
• differentiate between equal and unequal parts

Historical Preview

• The word fraction actually comes from the Latin “fraction” which means to break.
• It was the Arabs who added the line (drawn horizontally) which we now use to separate numerator and denominator.
• Egyptians were one of the first groups to study fractions.

Real Life Examples

• A year is divided in fraction of month is further divide into fraction of weeks. Half year is equal to 6-months.
• In schools, the time is divided into equal fractions of periods for each subject.

QUICK CONCEPT REVIEW Halves and Quarters Half Rahul and Akshay were hungry. They bought a muffin cake. They shared muffin cake by dividing it into two equal parts. more...

LEARNING OBJECTIVES This lesson will help you to:—

• identify patterns in shapes, numbers and letters, observe and extend given patterns.
• create block patterns by stamping thumb prints, leaf prints, vegetable prints, etc.
• create patterns from shapes, numbers and letters.
• describe given patterns.

QUICK CONCEPT REVIEW A pattern shows the same thing again and again. It is an arrangement of objects; numbers or letters with some fixed rule. Look at the patterns made with circles and tiles. In the first pattern you can see one shaded and one unshaded circle getting repeated. In the second pattern a square is divided diagonally and shaded half.   KINDS OF PATTERNS

• Patterns are of different kinds – repeating patterns and increasing or decreasing patterns.

1. Repeating Pattern In repeating pattern same things appear again and again. (a) more...

  LEARNING OBJECTIVES This lesson - will help you to:

• understand the concept of time.
• learn how to read time.
• study about calendar and how to find a particular day and date in calendar.

  Amazing Facts

• All the blinking of eyes in one day equates to having your eyes closed for 30 minutes.
• Different part of the world are located in different time zones which means that while you are having breakfast in the morning, someone in another part of the world is having dinner.
• The year in which the month of February has 29 days is called a leap year and has 366 days which comes after every 4 years.
• The clock is one of the oldest human invention.

  QUICK CONCEPT REVIEW A clock has numbers 1 to 12 on its face and 2 hands. The face of a clock is called dial. more...

LEARNING OBJECTIVES This lesson will help you to:—

• measure length using non-standard units
• learn about standard units
• make difference between shorter and longer lengths.
• compare objects by their weights
• learn about simple balance.
• compare containers by observing their capacity.
• order containers as per their capacity.

  Amazing Facts

• A kilometers is less than a mile.
• A small car weights about 1 tonn as 1 tonn = 1000 kilograms

  QUICK CONCEPT REVIEW MESURENENT OF LENGTH Have you ever thought, how we can compare lengths of the two things? We can compare the lengths of two things by looking at them. Out of the two chocolates shown, more...

LEARNING OBJECTIVES This lesson will help you to:—

• know about division
• learn the method of division.
• write a division problem.
• solve a division problem.

  QUICK CONCEPT REVIEW DIVISION Division means equal sharing or making groups of equal things. Let us understand with the help of an example. Maria has 4 rabbits. She has 8 carrots that she wants to distribute equally among them. How many carrots will each rabbit get? This can be solved by using Division First Maria will give one carrot to each rabbit Step 1 Then she finds that she still has some carrots. Now she gives one more...

LEARNING OBJECTIVES This lesson will help you to:—

• learn about groups.
• know about repeated addition.
• know about multiplication as repeated addition.
• learn multiplication of one-digit and two-digit
• numbers

  QUICK CONCEPT REVIEW MULTIPLICATION What is a Group? Let us understand with the help of examples. There are 5 pencils in this box. We can say this is group of 5 pencils. Now consider two boxes of pencils. These are 2 groups of 5 pencils each. Equal groups Look at these three groups of birds. There is an equal more...

LEARNING OBJECTIVES This lesson will help you to:—

• understand the concept of addition and subtraction.
• add and subtract 2-digit numbers.
• add and subtract with or without regrouping.

  QUICK CONCEPT REVIEW ADDITIONS Suppose you have 3 apples and your friend gives you 4 more apples. How many apples will you have? Here, you need to learn addition. 3 + 4 = 7 So, you will have 7 apples with you. Let us learn some methods to do addition. Also, you should know that '+' sign is used as a symbol of addition.   PROPERTIES OF ADDITION

• Adding 0 to a number gives number itself.

For more...

LEARNING OBJECTIVES This lesson will help you to:

• identify greatest and smallest numbers.
• make comparison of numbers.
• arrange numbers in ascending/descending order.
• learn about odd and even numbers.
• learn about position of objects.

  Real Life Examples The large numbers are used to keep records of:

• Population of a country.
• Employees in companies.
• Patients in hospitals.

  QUICK CONCEPT REVIEW:

• The number which is largest in a given series of numbers is known as the largest or greatest numbers.

For example: 12, 32, 49, 60 In this example, 60 is the greatest number.

• The number which is smallest in a given more...