Rational and Non-Rational Numbers
This lesson covers the identification of rational and non-rational numbers. It explains the characteristics of different number sets, including natural numbers, whole numbers, and integers. The lesson also discusses the significance of the number PI in relation to circles.
- 00:10 “Hello, I'm Oyase Sunday, and I'm taking Matamatics JSS 3 class. We're treating an interesting topic for today. And the topic is rational and non-rational numbers. We're taking it from the numbers and numerations. Now wha...”
- 01:42 “They're natural numbers. They include the positive counting numbers. So you talk about your 1, your 2, your 3, your 4, your 5. As far as this is positive and this is counting number, it is called a natural number. Take n...”
- 18:13 “That's 10 times 10. 10 in two forms. That's 10 times 10. 10 in two form. 10 times 10. 10 times 10. Now, going forward, we have that gives categorically equal to 3.14.1.6 divided by 10 times 10 is 100. 100. So, we have 3....”
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.
- 19:25 “We've come to the end of today's class. Thank you so much for watching. My name is Dorkas Aoye, till next time.”
- 02:23 “sweets you have data and then you spend it on transport. So you can easily represent this with Z, represent this with D and represent this with S. So for your 500 NARA, this is, to know how much is left every month, say...”
- 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...”
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.
- 24:14 “all over 2 times 2, and that will give us 6 plus 7.5 minus 7 will give us 0.5. So 0.5 all over 2 times 2, this we can't do this, so we have 6 plus 0.5 and that is 6.5. So therefore our Q3 is 6.5. Now, how to find the 7's...”
- 11:11 “And how do we calculate the medium? Medium will be calculated when the number is arranged in ascending order. And this is already arranged. It's already arranged in ascending order. You can see. And that is, we have 0, 1...”
- 14:28 “What is your F? And what is your C? Where your I can only be 1, 2, 3. It means that, what does that mean? It means you can only find q1, q2, and q3 when you're talking about cotile. You cannot find 4th cotile. There's no...”