This is one stamp.
This is a strip of 10 stamp.
This is a sheet of 100 stamp. On adding one more stamp to these 100 stamps it will become 101 stamps. This is how Raghu counts stamps more than one hundred. And we say this is one hundred one
\[100+1\xrightarrow{{}}101\,\,\begin{matrix} H & T & O \\ 1 & 0 & 1 \\ \end{matrix}\]
2 more stamps in 100 stamps will form 102 and we say as one hundred two.
PLACE VALUE OF A NUMBER
The value of a digit due to its position in a number is called its place value.
Three digit numbers have three place values-ones, tens, hundreds.
We write it as 206 and read it as two hundred six.
Let us take an example:
3 - This number has one digit
26 - This number has two digit
165 - This number has three digit
Digits 3. 6, 5 in numbers 3, 26,165 are all in the ones place respectively.
2 in number 26 and 6 in number 165 are in the tens place. The place value of 2 in 26 is 20.
1 is in hundreds place in 165. The place value of 1 in 165 is more... 
2. Match box, that we use for lighting fire has a shape of a cuboid.
3. Cold drink cans have shape of a cylinder.
4. Ice-cream cones are having shape of a cone.
5. Football has a shape of a sphere.
The shapes we have discussed above are 3-Dimensional shapes. These are also known as solid shapes. Flat shapes like circle, triangle, square and rectangle are also called 2 - Dimensional shapes. Now, observe how we can make 2-D (2-Dimensional) shapes from 3-D (3-Dimensional) shapes by simply using pencil. Whichever shapes you want to draw, put it on the paper and draw its lower bottom. The shapes thus formed are 2-D (2-Dimensional) shapes.
Let us understand with the help of examples given below.
1. 
2. 
3. 
4. 
Rectangle
A Rectangle has four sides. Two opposite?s sides are equal and all the four angles are also equal.
Square
A Square has four sides. All the sides are equal Four angles are also equal.
Triangle
It has sides and three and angles. Sides and angles can be different or equal.
Circle
It has no sides and it is more... 
(b) Wood: Wood is obtained from trees. Wood is used to prepare furniture at our home. Wood is very hard and cannot break easily.
(c) Metal: Metal is very hard and cannot break easily. Metal is used to prepare many things such as trucks, buses, bicycles, artificial jewellery etc. (d) Glass: Glass can break easily. Glass are used to make sunglasses, wall-clocks, mirror etc.
(e) Plastic: Plastic are unbreakable, they cannot break easily. Plastic are used to make lunch box, water bottles, toys, bucket etc.
Some of these materials can be recycled and used again and again. These materials are known as recyclable material. For example: Wood, plastic, more... 
Real life examples:
We obtain cotton from cotton plant and wool from sheep.
Rain coat gumboots, and umbrella are made up of waterproof material.
SYNTHETIC FIBERS
Synthetic fibres are obtained from the raw materials such as chemicals.
NYLON
Nylon is a synthetic fibre. It is used to make clothes like saree. It is also used to more... 
Teacher: We learn to read and write from our teacher in school. We learn good habits and good manners from them.
Dentist: Dentist is a doctor who takes care of our teeth and cavities.
Policeman: Mostly a police station in every area. They help to keep law and order and protect our life and property.
Fisherman: Fishing is the common occupation of people who live by the sea coast, ocean and river. Fish is an important source of food and oil.
Shopkepper: A large number of people use to sell goods to the customers and are called shopkeepers.
Fireman: A fireman is a trained person who can put off fire in case our home. We can dial 101 to call fireman.
FAMOUS PORSONALIIES
1. APJ Abdul Kalam is an Indian scientist and who was the 11th President of India.
2. Narendra Modi is the 15th and current Prime Minister of India.
Air is all around us but we cannot see it. Have you noticed your hair is blowing? This is because of air.
Moving air is called wind. When the wind blows gently, it is called breeze. It helps in drying clothes. When the wind blows very fast, it is called storm. A storm can damage your house.
A Storm can domage your house
WATER
We all need water. Water is required for drinking, bathing, cooking, washing etc. Plants and animals need water. But do you know, where water comes from?
We get water from rain. Rainwater is present in oceans, river, ponds, lake, ground water etc.
Water has no fixed shape. It can take the shape of vessel in which it is kept.
Real life Example:
Wind makes the wheel of wind- mill to otate which produces electricity.
FORMS OF WATER
Have you noticed when water is heated in a kettle, steam comes out of it. Steam is the water vapour. Water is found in three forms. Solid (ice), liquid (water) and gas (water vapour) the process of changing the water into water vapour is known as evaporation.
When water vapour gets cooled it becomes liquid (water). This process is called condensation.
When water is cooled, it becomes ice. This process is known as freezing.
WATER CYCLE
In this cycle, water from oceans, lakes and rivers more... 
2. BODY BUILDING FOOD
Body building food helps in building our body. For example Meat, milk, fish, cheese etc.
3. PROTECTS FOOD
Protective food are the food which protects us from diseases. For example: fruits and vegetables. All type of food should be eaten in proper amount. Food which contains all the nutrients in equal amount is known as balanced diet.
FOOD FROM PLANTS
We get fruits and vegetables from plants. We eat afferent parts of plants as food. For example: we eat the pool of radish, carrot, turnip, etc. We eat the stem of many plants as vegetables such as onion, potato, ginger. We eat the leaves of many plants like spinach, mint, and coriander. We eat flower of cauliflower, brocolli etc.
FOOD RFOM ANIMALS
Animals such as cow, buffaloes, camel and goats give us milk. Milk is used to produce cheese, curd, sweets etc. Animals also give us meat and egg. We get honey from honeybee.
Do you know?
Mango is know as the ‘King of fruits’. More than 1000 varieties of mangoes are grown in India.
SHELTER (HOUSE)
A house is a place where we live together. It is a place where we eat, sleep and relax. It is a shelter which protects more... 
Historical Preview
Kite flying is a very popular game in India. Many people fly kites on 15th August every year to celebrate independence.
INDOOR ACTIVITIES
The activities which are done inside our home are called indoor activities. Being stuck inside doesn't have to mean being bored. You can play finger game, memory game, science experiment etc.
Indoor activities are undertaken on the comfort of one's home. Hobbies are a part of indoor activities. Hobbies provide a great way to escape the pressure and the stress of the day. For example: Painting, Stamp collection. Book reading.
Indoor activities includes indoor games such as
Chess, ludo, snakes and ladder etc.
Chess: It is a 2-player board game more... 
DELHI
Tourists from all over the world come every year to visit daces like Qutub Minor, India Gate, Jantar Mantar, Red Fort, and International Museums. There are many places of worship in belhi such as Akshardham temple, Lotus Temple, Biria Mandir and many more.
Akshardham
OTHER METRO CITIES IN INDIA
MUMBAI
Mumbai is one of the four metro cities in India.
Mumbai is warm and humid in summer. It is not very cold in winter.
People who live in Mumbai speak ‘Marathi’.
Ganesh chaturthi is the most popular festival celebrated here.
The most famous tourist spots in Mumbai are
Gateway of India', Marine Drive and the most popular Essel World.
Famous cricketer and filmstars live in Mumbai. Mumbai is also famous for beaches such as Juhu Chaupati, Marine Drive and Versova.
Gateway of India
KOLKATA
Kolkata is known as the "city of joy". Kolkata is situated along the bank of river 'Hugli'. The main festival of Kolkata is 'Durga Puja. The climate of Kolkata is neither too hot nor too cold. People of Kolkata speak 'bengali’. The famous places of Kolkata are Victoria Memorial, Biria Planeterium, Rabindra, Sarovar, Science City.
Rice and fish is the main food of Kolkata. 'Rasogulla's the famous bengali sweet.
Victoria Memorial
CHENNAI
Chennai is known as the "city of temples". Chennai is warm throughout the year. 'Pongal’ is the main festival celebrated here. Chennai is an important tourist centre.
The main attraction of the city is the 'Marina
Beach’, War Memorial, Gandhi Mandapam,
Vivekanand Museum etc.
Bharatnatyam is a famous dance of Chennai.
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