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...”
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...”
- 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...”
Measures of Central Tendency
This lesson covers the measures of central tendency, including mean, median, and mode. Students will learn how to calculate these measures using given data sets. The lesson also explains how to handle data with and without frequency.
- 06:25 “And this is arranging in ascending order from the smallest to the I. And the median, after arranging, the median after arranging in ascending order will be, you can see, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 7, 8. You can see th...”
- 05:35 “And that will give us 22.9 approximated to the nearest old number we have 23. So our main equals 23. [BLANK_AUDIO] Now a median, don't forget we say that when you want to find the median, is that you arrange it in ascend...”
- 27:41 “all over F, 4, everything times 2, we have 4 plus 4 all over 4 times 2, so this would be, if you consider this we have 1, so 1 times 2, that would be 4 plus 2, and that is 6, so therefore, our d 7, the 7's total, d 7, wh...”
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.
- 03:09 “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...”
- 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...”
- 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...”