Converting Base 10 to Binary
This lesson teaches how to convert base 10 numerals into binary numbers using two methods: subtraction and successive division. Students will learn to identify the powers of 2 and apply them in the conversion process.
- 15:39 “Thank you for watching. I am Esther Oluci-Ibebrike, till we meet next time.”
- 01:32 “You have to be familiar with the powers of 2. To be able to convert numbers from base 10 to numbers in base 2, you have to be familiar with the powers of 2. So, 2 to the power of 0 equals 1 to the power of 1 equals 2 to...”
- 04:07 “So, what do we do? We write 1 here, 4, 5, then we have 1 left. So, I remember right now, the next power is 2, but we know that 2s is 1. So, we can have anything here, because it's not possible, we get 2 from 1. And 1 is...”
Cost of Production
This lesson covers the concept of cost in economics, focusing on the cost of production. It explains different types of costs, such as fixed and variable costs, and discusses the factors of production that contribute to overall costs.
- 25:58 “okay, over changing quantity, anything marginal, the first line is always dash, you can see, here, for the first unit is dash, so you start from the second one, very easy, even without capital it or you can do this, just...”
- 22:42 “a, b, c, d, a, and f towards, to high, so we need towards, we need to get the missing figure, how do they get this missing figure, a, b, c towards, to i, how do you calculate it, so without wasting time, let's go to the...”
- 31:22 “From 5, it's increasing to 6. So as what's output? You trace it. Trace it. What do you have there? Five. So you will tell them AC starts increasing at output five. AC starts increasing at output five. I will put together...”
Revenue Types
This lesson defines revenue and explains its three main types: total revenue, average revenue, and marginal revenue. It covers how to calculate each type and their relationships to production and sales.
- 11:28 “which is what, change in CR over change in quantity, so what do I do, I would say, this minus this, that's 24, minus 28, it's over, what's the quantity, it's minus 7, it's minus 7, okay, so what do I do, transform minus...”
- 07:57 “Use words, MR, do you have MR there, yes, so what's formula for MR, so your MR equals the word, change in CR, over words, change in words, quantity, Zanke, so, so briefly, what do we do from here, what's our MR, since yo...”
- 05:10 “So, let's get the words, the solution to these words, so this interesting question won't have to the other. Look at the board, here you have what, P is on the wall, it's first on the CR, remember the formula I give to us...”
Introduction to Trigonometry
This lesson covers the basic concepts of trigonometry, including the measurement of angles and the definition of trigonometric functions. It explains the types of angles, the use of protractors for measuring angles, and the concept of quadrants in relation to angles. The lesson also introduces plane
- 15:42 “So we have this convert, 37 degrees to 7 minutes, 38 seconds, into a radian measure. For it to do that, we need to find the relationship between each of them, which we have stated there. And let's see how we can do a rel...”
- 17:18 “So what we'll divide by 180. We will say that 180, this counts to this, 0 counts to 0. So we have x is equal to 1 over 9. So x equal to 1 over 9, pi, or we can say pi divided by 9 radians. So that is how to convert this....”
- 13:21 “But in addition to that, we need to understand that there are other conversion, we can also come across where we talk about degree and minute. Remember that we can subdivide 60 equal parts into second. Remember, there ar...”
Multiplication in Binary Numbers
This lesson covers the multiplication of 2-digit and 3-digit binary numbers. It explains the basic rules of binary multiplication and how to apply them in calculations. Students will learn to perform binary multiplication without borrowing.
- 15:40 “transferred to this place so that gives us plus one yeah plus one one plus one that's two we turn back here that gives us zero that what do I have then I have the last one transferred yeah that's plus one so plus one plu...”
- 00:00 “Hello, my name is Oyase Sonday. I'll be taking you madmatis jsS3 class. We're looking at an interesting topic for today that says multiplication of numbers in base 2 numerals, multiplication of numbers in base 2 numerals...”
- 16:32 “four one one multiply by one zero one evaluate one zero zero one one multiply by one one one thanks for watching my name is Oyase Sonde till next time”
Rational and Non-Rational Numbers
This lesson covers the identification of rational and non-rational numbers. It explains the characteristics of different number sets, including natural numbers, whole numbers, and integers. The lesson also discusses the significance of the number PI in relation to circles.
- 19:01 “Now, with these two examples, we will give you an idea to what pi equation or pi really means. Now, you have some questions, which I expect you to do. You have said calculate 16 divided by 9 in 3 decimal places. 16 divid...”
- 15:03 “So I put it. So simply, move it. I have my pie is what my circumference is given. The circumference is given in 62.832 over what's my radios? My radios is 10. That is 10. Now, I have 2 radios makes 1 diameter. That's tim...”
- 13:27 “62.832 centimeter. The circumference, the circumference of this cycle is given to be what? 62.832 centimeter. And an area is given to be 314.16 centimeter squared. The radios is given to be 10 centimeters. So the questio...”
Counting in Binary
This lesson teaches how to count using the binary system, which uses only the digits zero and one. Students will learn to represent numbers in base two and understand the place values associated with binary digits. Activities include grouping counters to illustrate binary numbers.
- 07:12 “Use the method in example one to represent the numbers from one to twenty in base two in a paper abacus. So for each number, you're going to do this. Group them into eight, four, two, and one. We have done number nine fo...”
- 05:40 “So what next are we asked to do? So we asked to represent this on a paper abacus. So on a paper abacus, let's draw abacus. A paper abacus. Let's draw a paper abacus. Um, we have eight, eight, we have fours, then we have...”
- 07:59 “Let me convert it to base two for better understanding. So let's go. We have ten in base ten. So let's represent the powers of two on our paper abacus. So we have we have the eights, fours, twos, then units, which is onc...”
Translating Word Problems into Equations
The lesson teaches how to translate word sentences into mathematical equations. It covers the use of variables to represent numbers and how to express word problems as algebraic expressions. Students will learn to solve simple equations and check their answers.
- 09:31 “And then she sold 45 cups of rice, 45 cups of rice. So 45 times two, 45 now would be 45 times four. Because a cup of rice is four Nera, so four multiplied by 45. So our income is two times 50 plus four times 45, which is...”
- 11:09 “So we say Q. And rice adds double the price of maize. That is two times Q. If she sold 50 cups of maize and 45 cups of rice, what was her income? So 50 cups of Q, that is 50 of Q, 50 Q plus-- this is 2Q plus 2Q times 45....”
- 17:01 “You can just say 4 X, so you can say X plus X plus X plus X. This is a cost of 4 such as of milk. And 8 such as of noodles, 8 noodles would be since noodles is X plus 20. So you have 8 times of X plus 20. So 4 such as of...”