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.
- 05:41 “How do we do this? The same method, using the subtraction method. So, let's write all, let's draw a... Okay, let's better still group them into 2s. Because we have 8, we have 4, we have 2, then we have 1. So, we have num...”
- 00:00 “Hello everyone, I am Esther Oluchi, your Mathematist teacher, and the topic of today's lesson is "Conversion of based and numerals to binary numbers." By the end of the lesson, you should be able to convert based and num...”
- 09:34 “So, there's a 2 in 3. So, what do we do? The same thing here, 3 minus 2, given us 1. That means, well, I don't get 2. Because, we have 1 left here now. So, what do we have? We also have 1 left. So, just put it there. We...”
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...”
- 00:59 “which is known as a decimal system. We have digit zero, one, two, three, four, five, six, seven, eight, and nine. We use this digit to represent numbers in base 10. The binary system is the second in importance to our us...”
- 09:39 “So yeah, there's nothing here too. Okay, yes, two, we have two. So I write one for two. So this two is now gone. We don't have nothing left. So nothing here. So for our base, for our ten, the equivalent in base two is on...”
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.
- 01:43 “Now, binary numbers are, they work similar to base 10, they work similar to base 10, but the exception is this, binary numbers are expressed in 0 and 1. That is, they're expressed within 2, the framework of 2 digits. And...”
- 04:23 “As I want to say, okay, solve, I have 1, 0, mean 1, 0, okay, 1, 0, 1, 0, and I have 1, 0, 1, I'm multiplying. Now, let's multiply in the multiplication. It becomes important that you use your first digits. First to digit...”
- 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...”
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.
- 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...”
- 03:15 “So we have, we have done this one plus one, this is one and zero, plus one, this, plus one. How do you do this? One plus one is ten already, then take one here, one plus one and under what, another ten. So we have it on...”
- 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...”
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
- 11:57 “smaller one, what longest side of the smaller one, that's 9. Because of this point, decimal place, you multiply by 10. So, when you multiply, because of the decimal place, to take it off, you are going to be having 2.5,...”
- 13:32 “is given to be what, 0.5 divided by 5, like I said, you could multiply by 10 to take away this point, so that will give us automatically another 2.5, now, take note, the sides of the first, give me 2.5, the sides of the...”
- 06:21 “twice. That means the smaller one is, the smaller one is twice the big. I have the bigger one, I have the smaller one. So two of the smaller one makes the big one. So if you have 8, this is 4, 4 times 2, that's 8, then w...”