1st Class

                                                             Clothes We Wear   We wear clothes according to the weather. Clothes protect us from heat, cloud, winds and rain. The clothes are made of different materials.

• Cotton Clothes are made of cotton.
• We get cotton from the cotton plant.
• Woolen clothes are made of wool.
• We get wool from sheep.
• Raincoats are made of waterproof materials.
• In ancient days people used to wear leaves and skin of animal as clothes.
• Clothes worn by Male and Female are different.

  Male Wear                                    T-Shirt                            Trouser                    Formal Shirt                 Kurta more...

                                                                                              Air and Water   Air Air living things need air to breathe. Air is a mixture of gases. We nither see it nor can touch it. But we can feel it's presence. Fish breathe through its gills. Air fills space and has weight. Air makes the life possible on earth. Not only have human beings, even plants and animals also need air to survive.   Wind Moving air is called wind. It can moves things.                      Windmill                                           Sailboat   Air helps in burning more...

                                                                            Weather   Weather Some days are hot, while some day are cold. On some days it rains, while on some days it is dry and windy. This is how weather keeps changing from day to day. Look at the following pictures.   Hot and Sunny Days Some days of the year are very hot. The sun shines brightly. We wear light cotton clothes to keep our bodies cool during this time of the year.   Cold Days Some days of the year are very cold. It snows at some places when it is very cold, wear warm woollen clothes to keep our bodies warm during this time of the year.   Windy Days On some days, the wind blows very fast. A strong wind can blow more...

                                                               The Sun, Moon and Stars   The Sun If you see the sky during the day, you will see some clouds and the sun. The sun looks like a yellow, hot ball of fire. It is very big. It shines brightly during the day. It gives us heat and light. All plants and animals need the warmth of the sun to live. The sun rises every morning in the east. It brings us the day. The sun set every evening in the west It bring us the night   The Moon If you see the sky at night, you will see the moon and lots of starts. The moon looks like a big white ball. Sometimes, you can see the moon even during the day. If you observe the sky every day, you will more...

                                                                My Family and Relatives   We all live in a house with our father, mother, brother and sister. Our parents, brother and sister make our family.    A small family in which mother and father live with their children is known as a nuclear family. Again, in some families not only parents and children, but also their uncle, aunt, their children along with grand parents live together. Such family is called a joint family. All the members of a family generally have common surname. Brother of our father is Known as paternal uncle. Brother of our mother is known as maternal uncle. Our uncle's children are our cousins. Our family is our first teacher. A chart is given herewith to give you an idea of a family tree:   more...

                                                                            Back and Forth Counting   Back Counting Look at the following figures:                           Back Counting   Reverse Counting Reverse counting is back counting or counting backward. The reverse counting goes as given below: Look at the following figures:                  Reverse Counting                      Reverse Counting     Forth Counting Look at the following figures:                Forth Counting     What Comes before In forth counting, smaller number always comes before greater number.  

• Example:

                       Forth Counting   Here, 3 comes just before 4 & 4 comes just before 5 In forth counting Numbers coming before more...

                                                                                       Ones, Tens and Hundreds   Concept of Ones and Tens Ones, tens and hundreds are the places of digits in a number.   Identifying such Number In any number, first number from right is called ones; Second number from right is called tens; And third digit from the right is called hundreds. Identifying ones in a number.   In 35 first digit from right is 5. Thus the digit at one's place is 5. It is also said that 35 has 5 ones.  

• Example:

18 has 8 ones because in 18, first digit from right is 8.   Identifying more...

                                                                                                         Addition   Concept of Addition Addition means collection of different units together and counting them as single

• Example:

  There are three balls in box A  A Three balls      There are one ball in another box B   B     One ball   Now, How many balls are there in both the boxes together? For this, we put the balls from both the boxes in a single box as shown below:   more...

                                                                                                    Subtraction   Subtraction Subtraction means taking out something from some bigger unit and finding the outcome as left over.   Subtraction of Two Numbers It is the process of taking away smaller number from the greater one.

• Example:

           5 - 3 = 2        Subtraction of Figures 5 hours - 2 hours=3 hours Trick:                Subtraction of Images It means taking out picture or pictures from the group of pictures and finding the remaining as the result of the subtraction.   more...

                                                                                        Time and Calendar   Concept of Time A day is divided into hours. An hour is divided into minutes and a minute is divided into seconds. See the following examples: For example, Leesa reaches school on 8 O'clock every day. Here 8 O'clock is the time   Hours, Minutes and Seconds Hours, minutes and seconds are units for the measurement of time. For example, we can say 2 hours; 2 minutes; 2 seconds.   Now just remember: 24 hours  = 1 day 1 hour = 60 minutes 1 minute = 60 seconds Hence 1 day = 24 hours   Knowing Time Knowing time means knowing period or duration of a certain event. For example, A man goes to a certain distance in 60 minutes. We can therefore say that he takes 1 hour to cover the certain distance.   Time Indicating Watches Let's see the more...