Utsav (Patterns) Class 1 Notes Maths

What is a Sequence?

• A sequence is a list of things that come in a particular order.
• For example, the letters in the alphabet are in a sequence from A to Z.

Let's look at another example. 

• Have you ever counted numbers before?
• Counting is a sequence of numbers that go in order. 
• It starts with the number one and goes up to higher numbers like two, three, four, and so on.

Extend the Sequence

Are you ready to learn about a fun concept called "sequence"? It's all about putting things in the right order, just like when we line up for lunch or get dressed in the morning!

Example 1:  Let's take a look at this pattern I have on the board. Do you see the arrows? The first box has an arrow pointing up, like this ↑. In the second box, the arrow is pointing towards the right, like this →. And then in the third box, it's again pointing upwards.

Do you notice anything? That's right - the direction of the arrow keeps changing! Up, then right, then again up. But can you guess what comes next? Let's think about it together.

We see that the arrow in the third box is pointing upwards. So if we follow the pattern, the next arrow should point towards the right again!

Ans: The next will be arrows pointing towards our right.

Let's play another little game to understand it better. 

Example 2: I will tell you a sequence of fruits - a mango, then an apple, and then another mango. Can you guess what comes next?

Ans: That's right, we will follow the same sequence and place another fruit after the second mango. But what fruit should we choose? Well, let's look at the sequence again - it goes mango, apple, mango. So after the second mango, we need to put an apple, just like before!

Now, let's keep going. After the apple, what should we put next? You got it - another mango! So the sequence goes like this - mango, apple, mango, apple, mango, and we can keep going and going.

Patters in Shape

In the first box, we see a rectangle. In the second box, we see a triangle. And in the third box, we see a circle. 

What do you think will come next? 
Let's look at the pattern so far. It goes rectangle, triangle, circle. Do you see it? It's like a little dance of shapes, moving from one to the next!
Now, let's look at the fourth box. What shape is there? A rectangle!
So what shape do you think will come next? That's right, a triangle!

And what about the sixth box? There's a circle there.
So what comes next? You got it - a rectangle!Give

Study the pattern and fill in the missing numbers

Now let's keep counting with the caterpillar. We add 2 to 6, and we get 8. And then, we add 2 to 8, and we get 10! But wait, we have another missing number! So we add 2 to 10, and we get 12! And the next number on the caterpillar is 14!

But wait, there's more missing numbers! How many are there? Three! So we add 2 to 14, and we get 16. And then, we add 2 to 16, and we get 18! And finally, we add 2 to 18, and we get 20!

When objects or shapes are placed in an order, they form a pattern. A pattern follows a rule that allows us determine to what comes next in the sequence.

What is a Pattern?

• A pattern is a repeated sequence or design that happens over and over again.
• Patterns can be found in many things around us, such as in shapes, colors, and sounds.

Let us take an example:

• Have you ever noticed the pattern in a traffic light? 
• The traffic light goes from red to green to yellow, and then back to red again. 
• This is a pattern that repeats over and over again.

Traffic Lights

Complete the Pattern