Graphical Method of Simultaneous Linear Equations
This lesson teaches how to solve simultaneous linear equations using the graphical method. Students will learn to create a table of values, plot the equations on a graph, and identify the point of intersection as the solution. The focus is on using the x and y axes correctly.
- 18:50 “pop, pop, pop, pop, pop. You start. When x is 2, y is minus 1. x is 2, y minus 1, you trace off, connect them. When x is 3, y is 0. Look at the point 0. So, you just trace the top here and start it. Now, when x is 4, whe...”
- 14:34 “positive of x. This is my negative of x. This up is my positive of y. Down minutes is my negative of y. So, it means, if I am going to be doing my plotting, my x is 1, 2, 3, 4. So, what will I just simply do on the graph...”
- 16:21 “2 centimeters. So, I will just say, the first one is minus 1. The first one will give me minus 1. Minus 1. The second one will give me minus 2. Third one will give me minus 3. Now, putting it minus 3, then the range of t...”
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.
- 16:53 “is equal to fixed cost, plus variable cost, take note of that, then how do I do the graph, very easy, draw your x and y, exist, remember this is your worth, your fixed cost, right, this is fixed cost, can you see, then y...”
- 12:08 “How do you calculate your fixed cost? For you to calculate your fixed cost, there is a formula for it, you say your fixed cost, which is also the same as well, which is also the same as total fixed cost, it's capital use...”
- 12:54 “So this is how you draw the graph, it's very simple, first cost is set to be worth, it's set to be horizontal to the x-axis, are we together, it's not more than that, okay? Then let's move to the next one, please, and th...”
Whole Numbers and Their Properties
This lesson covers whole numbers, including their definition and characteristics. It explains how to express whole numbers and decimal numbers in standard form. The lesson also includes finding prime factors, least common multiples (LCM), and highest common factors (HCF) of numbers.
- 01:35 “It becomes so important. What are all Numbers? Our all Numbers are the numbers starting from zero and counting all forever. We call that all Numbers. We start from zero to forever. So, we have, if I have the all Numbers,...”
Karst Topography
This lesson covers the characteristics of karst regions, including their formation and features. Students will learn about limestone as a sedimentary rock, the effects of rainwater on limestone, and the typical vegetation and drainage patterns found in karst areas.
- 00:00 “(upbeat music) Good day, students. My name is Mr. Nkanu, your geography teacher. Today, we are looking at earth internal processes. In particular, we are considering karst to pro-graphy by casts to pro-graphy within line...”
- 03:54 “or stream on it. You see short, after a while to disappear, then it will come out at the other side. What's the next character? The next character or feature that can be found on a line stone topography, we are going to...”
Magnetic Fields
This lesson covers the concept of magnetic fields, including types of magnets such as bar magnets. It explains the flow of magnetic forces from the North pole to the South pole and the principles of attraction and repulsion between magnets. The lesson also touches on how to create a magnet and the c
- 36:13 “And sin 30 is what's sin 30 is equal to 0.5 or 1 over 2. Then, graph f is equal to 10 more than 7.2 times teris per minus 10 times 0.5. Now, let's make use of the calculator. We have 107.2 times 0.5.”
- 13:28 “We have the notes, or let's say A, and we have B. It does a single torch, where you strike once, it can be produced. Using a bar magnet, the side of H, which is what the notes, I will help with this out. Now, these can f...”
Solving Linear and Quadratic Equations
This lesson covers the methods for solving simultaneous linear and quadratic equations using substitution. It explains the definitions of linear and quadratic equations and demonstrates how to manipulate these equations to find solutions.
- 01:01 “that has between them two variables. And it has one exponent. It has the power of one. And when you plot it on the graph, it gives you a straight line. Example of linear equation R, Y is equals to Mx plus C. The power of...”
- 09:10 “When X is equals to six, there you have Y is equals to four minus two into six. Y is equals to four minus two as an Y is six. So therefore, we now have Y is equals to four minus 12. Four minus 12 is equals to minus eight...”
- 08:17 “will give you plus four. So Y is equals to eight. After solving, we can see that when X is equals to minus two, Y is equals to eight. So the coordinate is minus two comma eight. X comma Y minus two comma eight. All right...”
Critical Reading Skills
This lesson covers how to read critically by identifying facts and opinions in texts. Students will learn to make deductions their analysis of the material. The focus is on intensive reading for deeper understanding.
- 14:12 “Why is the writer writing this? It's to enlighten the readers on traffic warning signs. Another one, what are the main ideas of the passage? Empyra graph one. Remember, I taught you that in our previous lesson, where I w...”
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...”
- 03:19 “A paper abacost you can draw this on your paper. If you don't have an abacost available with you, you can improvise by drawing this in our notebook. We have 8, 4, 2, and units. So when you make this on your paper, we cou...”
- 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...”