Introduction to Operations Research
This lesson defines operations research and explains its application in management, industry, and business. It covers the steps involved in solving problems using mathematical models and discusses different types of models used in operations research.
- 02:25 “Then we also draw conclusions from the solution to the model. Having solved the problem, the mathematical model, then we can analyze, we can conclude that, okay, this is the exact problem we have in our company. Then the...”
- 01:38 “The major steps involved in the application of the operational research in solving management problems are the first thing is to identify and formulate the problems at hand. That's the first thing. We first of all know t...”
- 03:11 “is an idealized representation of natural phenomena. That is, the representation of the problem. How will you represent our problem in mathematical to solve a real life solution? And that is what the operational stage wa...”
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.
- 00:02 “Hello, my name is Dorcas Awaye. I'll be taking you mathematics today, and today's topic is algebraic processes, talking about simple equations. At the end of today's teaching, you should be able to translate word sentenc...”
- 01:33 “You go by the word one after the other and then you take it easy to interpret them. Suppose you get 500 NARA Pokemon every month and you want to keep track of the money you spend. You know, because you spend money on swe...”
- 04:45 “Total costs, for example, maybe cost of pens and rulers. The total cost would be expressed in P plus R. Every other triangle, length times this breath, as L times B parameter of a rectangle, 2L plus 2B. That is how we ex...”
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...”
- 20:10 “axiote, towards the complete for average fixed cost, what do you need to do, anything yet average, just so you're going to divide by the quantity, so you pick the last two variables, which is fixed cost, then the formula...”
- 21:02 “draw your x and y axis, then you draw this, this represents your words, your average cost, anytime, anything, are we together, then the next thing I'm going to show you is what is that your average total cost is divided...”
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.
- 19:23 “an idea that the movement is backward. The backward movement, it becomes an easy to go around it. Once the backward movement, a forward movement, positive, a backward movement, negative. Now, let's take the other express...”
- 00:02 “Hello, my name is Sunday Oyase. I will be taking you Mat Matis, the GSS2 class, and we have an interesting topic for today. The topic of today is O Numbers. Well, the O Numbers have, I will be dividing into two series. W...”
- 18:36 “this is moving up, it becomes a minus. That's negativity. Take notes. It becomes very important. It becomes very important. Now, looking at it again, another example that we have in the part of division. So, you could ha...”
Gas Laws
The lesson covers the relationship between volume, temperature, and pressure of gases. It explains Boyle's Law, Charles's Law, and the general gas equation PV = nRT. Students will learn how to perform calculations involving these laws and the importance of using Kelvin for temperature.
- 01:36 “two volumes and two pressure. We have P1, V1 is equals to P2, V2. This is a graphical representation of voice law. We have P is inversely proportional to V. As we have on the board, this is also graphical representation...”
- 17:02 “properties used to measure changes in gases. These are pressure, temperature, volume and number of moles. The ideal gas law equation relates all the four variables in the equation in which each can vary. This equation is...”
- 00:00 “Good day, everyone. My name is Uchendo E.N. I am your chemistry teacher for today. The topic of today's lesson is Gas Law. Objective. At the end of the lesson, the students will be able to explain gas law, explain the re...”