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.
- 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”
- 09:48 “so I left a space so I have a addition I have okay one I have I have zero plus one one zero plus zero zero one plus zero one then I have one but still let's flip up the space okay now we still have this left how do you t...”
- 07:57 “multiply. Now going to this process it's it's easier so let's take it up. So what do we have? Remember before digit one times one one times one sorry one times one one one times zero zero one times zero zero one times on...”
Simplification of Algebraic Expressions
This lesson covers the definition of algebraic expressions and their components, including terms and coefficients. It explains how to identify like terms, perform arithmetic operations on similar terms, and simplify expressions by inserting or removing brackets.
- 20:00 “multiplied by b. So we have 3 times 2a is 6a, 3 times 2. This expression is the same as 3 times 2 times a. Remember 2a is the same as 2a. So in our algebraic expression, you can multiply all these together. 3 times 2 tim...”
- 18:22 “Question 4m is the same as 4 times m. You replace m with a plus b, then remove the brackets and simplify the expression. Here we use repeated addition. So what we've been doing here is called the use of repeated addition...”
- 06:22 “The same principles apply in algebra. But remember that in algebra, we use a letter of variable to represent a number. For example, a plus a plus a plus a is the same thing as four multiplied by a. In algebra, we normall...”
Factorization of Algebraic Expressions
This lesson covers the factorization of simple algebraic expressions and quadratic expressions. It includes methods for identifying factors and solving related word problems.
- 15:44 “Now, what do I do next? Open the bracket. Remember, multiplication comes. A times a gives me a square plus a times b gives me a and b. And plus times plus, I have it as addition. b times b gives me b square because they...”
- 07:05 “Like 2 multiplied by 3 multiplied by a square, that means a is 2. By a multiplied by a multiplied by a b. Now, we go for the second one, that's 15. I have 15. What are the possible factors of 15? I know the ba is the squ...”
- 06:15 “Now, 12 a square b, what are the common factors for 12? The common factors for 12 are what? They are 2 and 2 multiplied by 2. They're multiplied by 3 multiplied by 3. The question is, why am I multiplying it by 3? Becaus...”
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.
- 03:58 “That is X plus five. Because I haven't mentioned how much I earn. So how much I earn can be represented with X. So if how much my brother earns is X, or X in the era, and I say I earn five NARA more than my brother, that...”
- 17:48 “Using the distributive law, you use this to multiply this and then use the same to multiply this as well. So you have 8 times X plus 8 times 20. So you have 8 X plus 160. So this is the cost of 8 such as of noodles of no...”
- 03:09 “can easily be put simple. The entire word here can just be put simple, simply like this, with algebraic expressions. Use footsteps in solving world problems with our algebraic expressions. For example, you have three con...”
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.
- 16:04 “you calculate your worth, your total cost, please take note, your total cost here is going to be worth, it's going to be fixed cost, plus worth, plus variable cost, okay, remember the first one I get to you is worth, is...”
- 24:19 “multiply by words, the quantity, the quantity is the same thing as the output, so it trades it to your A, okay, trades it to your A, what do you have, three, so six times three, give us what, 18, and that's how you have...”
- 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...”
Exponential Equations
This lesson covers the definition and properties of exponential equations. It explains how to solve exponential equations of linear form by ensuring the bases are the same. Examples are provided to illustrate the process of finding the unknown variable in these equations.
- 05:30 “with this we have minus x minus one equals two. And this would be minus x, we collect the like times, we have minus x equals two plus one. Our minus one will be called plus where we transfer this to the other side. So we...”
- 04:44 “minus one. That is four is per minus one. All raised to power was x plus one equals four raised to power two. And by the time we use what we call the power law in our indices, in our law of indices, we can easily have th...”
- 07:57 “can easily say that two raised to power x equals four. Then this is two raised to power x equals two raised to power two. Then since we have the same base therefore x equals two. That is when our y equals four. So when y...”
Electric Cells and Current Electricity
The lesson covers the types of electric cells, including primary and secondary cells. It explains the concepts of electromagnetic force, current electricity, potential difference, and resistance. The arrangement of cells in series and parallel is also discussed.
- 41:43 “And we multiply it, we have got E minus V is equals to 1.01 times. Now, we have got us as votes. We have got to take this one as an evolution. Thank you for watching with us. I am M N N D John. See you in the next class.”
- 35:14 “Which will give us 25 over 10, which will give us 2.5 ohms. That is, in the parallel form, we have what? Arru equivalence is equal to 2.5 ohms. Now, from there, let's get the, in cities, in cities, we have here, like thi...”
Similar Shapes
This lesson covers the identification of similar shapes such as triangles, rectangles, squares, cubes, and cuboids. It explains the criteria for similarity, including proportional sides and equal angles. The lesson also includes methods for enlarging figures using scale factors and calculating lengt
- 24:32 “smaller one, square, the bigger one is multiplied 4 times the smaller one, but in this proportion, this 4 can say 2 is to power 2, multiplied by water by 96 centimeter square, remember what's okay, as scalar factor is gi...”
- 16:54 “is equal to K multiplied by the length of the given shape, the new length you want to get, is equal to K multiplied by the length of the given shape, that means what does that mean, substituting what does that mean, what...”
- 23:43 “triangle, BAC, that's remember from the scalar, from the scalar that we meant comparison, now you will see why the scalar of 2 can also be checked, so that gives me 384, the bigger one, over 96, now if you look at 96, so...”
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.
- 08:55 “so it's going to be P minus 30, over changing quantity, under that same P, what is it going to see, 6, okay, so you say, 6, minus 5, 6, minus 5, so your 1 equals to words, equals to P minus 30, over 6 minus 5 equals word...”
- 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...”
- 02:40 “The average revenue will be given to you in the world and the question, are we together? Then, to get your average revenue, your average revenue is worth is your total revenue, okay? Divide that worth the quantity that h...”
Chemical Symbols and Formulae
The lesson covers the symbols of the first 20 elements and how to write chemical formulae and equations. It explains the differences between elements, compounds, and mixtures, as well as the concept of radicals and valency. The laws of conservation of mass and constant composition are also discussed
- 14:44 “that nitrogen with balance, nitrogen with balance A. My hydrogen is balanced, my nitrogen is balanced. The next I need to balance is oxygen. How many oxygen do I have now on the product side? I have 3 A, 2 A, making 5 ox...”
- 09:08 “for ordinary compounds, the summation is zero. 2 times 1, 2 plus 4. 4 times minus 2 is minus 8, equals to zero. Sofor take our collect-like terms, take the numbers to the other side minus 8 to the other side of the compo...”
- 15:36 “4 N O, nitrogen 2 Z. Then you have 2 times this to give us 6 water. With this, you can check whether your equation is balanced or not by doing atom count. On the return side, on the return side, my nitrogen, my hydrogen,...”
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.
- 02:30 “And now we are given the number 5. Okay, now these are the powers of 2. So, if it is good, you get familiar with them as you convert numbers in base 10 to base 2. Okay, now we are given number 5 to convert to base 2. So,...”
- 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...”
- 03:18 “So, we are given the number 5. Remember in our previous lesson, we counted these numbers, then we decided to group them in 2s, then in 8, and so on. So, for number 5, using the subtraction method, we look at our paper ab...”
Work, Energy and Power
This lesson covers the definitions of work, energy, and power. It explains potential and kinetic energy as forms of mechanical energy. The lesson also includes calculations related to work done and the concept of power as the rate of doing work.
- 15:04 “And it is obtained by calculating half of the total mass of the object multiplied by the square of its velocity, that is, half MV square. So, M is the mass of the object and V is the velocity of the object. So, we have a...”
- 18:20 “So, we multiply 10 with 10, then with the 3, then we have a total work done of about 300 joules. The third question says, calculate the work done by a body of weight 200 newtons, which moves through a distance of 12 mete...”
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.
- 02:33 “We use this paper abacost to improvise. I don't know if you've seen an abacost in real life. We have 8, fours, twos, then units. Okay, then we have one here, nothing here, one here, one here. I would like us to do this t...”