Addition of Binary Numbers
This lesson teaches how to add two or three-digit binary numbers. It covers the basic rules of binary addition, including carrying over when the sum exceeds one. Several examples are provided to illustrate the process.
- 04:05 “in our previous class, that our binary numbers are only two digits, one and zero. So that's as our answer for that. So three, we asked to add up one, zero, one, and one, one, zero. So we have one, zero, one, one, one, ze...”
- 00:00 “Hello everyone, I am Esther Oluchi Ndubukwe, your Mathematist teacher. And the topic of our today's lesson is addition of numbers in base two numerals. At the end of this lesson, you should be able to add two or three di...”
- 02:30 “one, zero, one, one, one, one, one, so we have one, zero, one, one, one, one, one, one, one, one plus one is one and zero plus one, this, right one, take one to the next column, one plus one is what, ten, that's one and...”
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.
- 17:36 “So this can be regarded as a term on its own, which is the same thing as 2 times a plus b. It is also the same thing as a plus b plus a plus b, which is a plus b plus a plus b. The same as, then you rearrange. Like we di...”
- 07:10 “Two multiplied by c. That is what it means. So the following expressions using a simple annotation. Y plus y plus y plus y. Instead of writing all of that, you just have five y. The same thing with 8 times b gives you 8...”
- 03:55 “Plus 2 is another term. A term can be a single number, positive or negative, or a variable, one or more numbers and variables that have been multiplied together, terms by terms, and are separated by addition or subtracti...”
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.
- 12:56 “The sum of three consecutive numbers is 11. Remember when we talk about consecutive numbers, that is, say, this is example 4. I want to start with 4. First, let's do 4. Now, sum of three consecutive numbers is 11. So thr...”
- 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...”
- 13:44 “And the first of the three numbers is A, as it is C in A, determine the rest. These are the rest, but what is the value? That is what we want to get now. Because we can get the value. See, let's see if we can get the val...”
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...”
- 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...”
- 09:47 “let me do it well for you, so you see clearly, take a look again, take a look, P minus 30 times 1, now give us words, now give us P minus 30, okay, let's give us P minus 30, P minus 30, okay, then this times this, we giv...”
Metals and their compounds
This lesson covers the characteristics of metals, including their ability to lose electrons and form positive ions. It discusses the classification of metals, their physical properties, and examples of common metals such as sodium, magnesium, and aluminum. The lesson also includes information on the
- 19:33 “to give you ZNO plus SO2. So you now have carbon that reacts with oxygen to give you this extra two electron. So the extra two electron now, we now react with that matter. M2 plus refers to this ZN. That will now be ZN2...”
- 00:00 “Hello everyone. I'm Mrs. Olabimpe Ayoko. I'm here to teach SS 3 chemistry and the topic is Metals and its compounds. So at the end of this lesson, everybody is expected to be able to define Metals with examples. The frie...”
- 01:35 “uttermost shell, tend to lose their electrons. For example, we have sodium and Meta, are you nicely by losing electrons to form sodium ion. So the ability to lose electron and become positively charged makes a Meta. So w...”