 Hi, Mahesh here from Khan Academy India Science Team and I just want to tell you why you should use Khan Academy, whether you are a student, a teacher or just a curious learner. So if you go to khanacademy.org and you click on the courses, you see we offer a lot of courses. In fact, Khan Academy offers 30 plus subjects. But if you're in India, we primarily offer maths and science, but let's look inside of them. What do we see? So let's go inside some math grade eight course. Let's go inside some unit. You will eventually see we have videos and we have exercises. Let's talk about each one of them. Our videos help you visualize and provide an intuition for what's really going on. And they are super, super focused, especially for lower grades, you can see they are extremely bite-sized, five minute video, three minute video, one minute video, you can learn things very quickly. And it's in a very friendly tone because that's when we learn the best. We learn the best from our friends. Okay. Now let's look at the exercises. Now look, I am a video creator. I love to make videos, but I truly think it's the practice feature that sets Khan Academy apart from everything else. First of all, our exercises target very specific skills so you can practice one thing at a time. If you go inside a particular exercise, you have a number of questions inside of them so you can get a lot of practice. And if you get stuck, then you have hints that can actually help you. It will guide you and nudge you towards the solution. And if that doesn't work, it will then eventually give you the link to the particular video that you need to watch. And then you can come back and redo the exercise. But here's the thing. When you come back and redo the exercise, you get a different set of questions so you can truly practice rigorously. And after you have practiced every single skill separately, you can take a quiz which combines and jumbles them and gives you so that you can truly master the concept. And the same thing happens towards the end of it. You have a unit test which jumbles all the questions that you've seen and throws it at you. So the amount of practice you can get is incredible. And couple that with the videos. It's a very powerful learning and teaching tool. So you have videos and exercises. So if you're a teacher, how do you start? Well, we usually recommend that you start with practice. Think of this as a practice first platform. Assign practice questions to your students. And once they have done that, you as a teacher get the data of what they did, where did they go wrong? You get a whole classroom view where you get to see how the class here is a whole. You also get to see individually what they did so that you can personalize and you can tell, Hey, you, I think you have a gap over here. So you can provide practice for that particular student and you can provide a different set of practice for the other person or other student. And you can also provide practice for the entire class. And I haven't even gotten to the whole mastery mechanics and the mastery points that you have, which takes this whole idea of mastering the concept to the next level. And we are completely free. We are in not for profit. Does this answer the question of why should you use Khan Academy?