 Hello, this is Chicho. Welcome to 420 Math. Let me give you a little tour of the site that way you can find what you need as quickly as possible, okay? Now the way I've set up the site is basically as an online video textbook and the two most important sections of any textbook that you're going to come across. The two most useful parts of any textbook you're going to come across is the table of contents and the index. The table of contents is important because it tells you how the authors were sharing the information. There's a coherent flow of thought when you go through a table of contents. Usually the more introductory ideas presented at the beginning of the chapter with more complicated ideas being built on that, right? Or new ideas being added on to it, right? The index is important because it allows you to find what you need as quickly as possible in the book. So you look something up, you know, alphabetically and, you know, it tells you what page you need to go to or multiple pages maybe of reference and then from there you go to that page and you, you know, you can see where the information is being introduced in the book, right? So you can either start following the information from there on or if the information is too complicated or you don't understand or you're missing pieces, you go further back in the book, right? That's exactly how set up this book or this site. Now the table of contents and the index you can find in the left-hand column is a pull-down menu system where the yellow buttons, the folders open up to either give you more folders or pages and the index is down here where you, you know, you can click on it and it expands into, you know, alphabetical index, right? So if there's anything specific you're looking for, you can look it up, come here, find out where it is and it'll show you the page that you're going to, okay? Now the table of contents you can access to through the pull-down menu system here. So you can go directly to the language of mathematics which is geared towards teaching you the syntax of the language or you can go to math in real life which is geared towards, you know, using the information we learned in the language of mathematics in real life, okay? Or you can go directly to the table of contents to button up here and, you know, it'll explain to you that there's two basically main tables of contents. So let's do a little test run and go through, you know, a little example of how we go about finding a specific topic, right? So let's say we're looking for a video on how to multiply and divide exponents. So what we do is go to the site and go directly to the index because we don't know where that lesson, if that lesson exists or if it exists where it belongs in the book, in the table of contents, right? So we'd go to the index and we'd go to E for exponents, open up E and we see that there's a folder here called exponents and radicals and you would click on that and there's a whole bunch of videos here on exponents and radicals. I ended up doing this in series two, so there's a fair bit of information there. So for multiplying and dividing, there's a page here, multiplying, dividing exponents and radicals, you would click on multiply and dividing and that takes you to the page that contains one of the lessons for multiplying and dividing and they might be multiple pages for a specific topic. Now the title of that page contains more information that you can use to find out where you belong on the site and where this information is contained and if there is more information on this topic. The title usually contains more information, more text because there's more room and in the brackets you see that it says it's the language of mathematics so you know that this video belongs to the language of mathematics series and the series that it belongs to is series number two, the Roman numerals here tell you which series you're in or which chapter you're in if you want to think about it that way, right? So in the pull down menu we can go about and find out exactly where this is. You can go language of mathematics, right? Series two, so you click on series two, open that up and you can see there's an exponents and radical section here so you can click on exponents and radicals and see the multiplying and dividing videos, right? And see where it belongs in the train of thought that's being presented, right? So if this doesn't make sense to you, what you do is you move up the menu to more simpler concepts or the introductory concepts and then work your way towards this. If this makes sense to you then you can continue the train of thought further down the chapter and just go through more complicated information being added up, right? Or new concepts being added up. There's one other thing here in the video and the titles which is important which is the video number. Now the video number is important because sometimes when I'm in certain videos I reference different videos, you know, something that we've said we've covered before or it works with this and that is the video that's popping up, the number that's popping up in the videos and the way you can find out, you know, where that belongs in a series is you can, most videos are gonna have, you know, a little hyper, hyper, you know, link here for the table of contents or you can go to the table of contents and we're in the language of mathematics and go to video number 46, find out where it belongs. So you can go to table of contents and this will take you directly to, you know, the table of contents for the language of mathematics and we're looking for video number 46 so what you can do is just scroll down and find out where it is and that's where video 46 is and again that's in series two and those are all the links to all the videos that they are, right? So this is sort of a mirror of the pull-down menu that we have in the left hand column of the site, okay? And that's how you find things. There's a lot of, a lot of other links, you know, everything being linked together so you can navigate yourself through things fairly easy, move around, you know, from one thought to another and, you know, optimize the time that you're spending on here so just so you enjoy the experience more, okay? And that's basically how the information is laid out here and I'm gonna be at this for a while and there's gonna be a lot more information coming along and, you know, we're gonna build enough content here to, you know, provide an introductory series on calculus and one for probability and statistics because those are the two most important things you progress into when you go into mathematics, into higher level mathematics anyway, okay? That's what we're working towards and that's about it. I hope you enjoy your stay here and, you know, if you have any questions or concerns, you know, send me a message and I'll try to, you know, help you out as best as I can, okay? Bye for now. I'll see you guys in the next video.