Plane Figures and Their Properties
This lesson covers the identification and properties of various plane figures such as squares, rectangles, triangles, and circles. It explains how to calculate the area and perimeter of these shapes. The lesson also includes the classification of triangles their sides.
- 02:47 “Identifying plane shapes. Properties of a rectangle. The opposite sides are equal and parallel. It has equal angles. Each angle at 90 degrees. For a rectangle, each angle is at 90 degrees. This is 90 degrees, 90, 90, and...”
- 03:48 “All angles are equal. Each angle is 90 degrees, just like in the case of a rectangle. The diagonal lines bisect each other at the right angle, 90 degrees, and it has four lines of symmetry. Triangle classification accord...”
- 00:00 “Hello, my name is Dorcas Awaye. I will be teaching you mathematics today, and today's topic is Plane Figures. At the end of today's teaching, you should know the similarities and differences between the following, betwee...”
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
- 26:10 “length of it, and it's 1.5 meter tall, the length of olatical shadow changes throughout the day, its length changes throughout the day, now olatical stands in the shadow of the lamp pool, stands in the shadow of the lamp...”
- 25:22 “these 2, if it cannot be in this form then your answer is wrong, now the last part is applying it to water problem, how do we apply it to water problem, how using your scalar factor to solve a problem, olatical wants to...”
- 14:22 “other side by this other side, so you could have a complete factor, factored out, so let's add the complete, so we have the other side, the torched side, that's from Africa 3, those add the torched sides, and what the to...”
Introduction to Trigonometry
This lesson covers the basic concepts of trigonometry, including the measurement of angles and the definition of trigonometric functions. It explains the types of angles, the use of protractors for measuring angles, and the concept of quadrants in relation to angles. The lesson also introduces plane
- 00:02 “My name is John Ogbodo. I'll be looking at today, what's the called trigonometry, ratios of special angles and the topic is, or the subject is photo mathematics. So under this, we are going to understand and look at the...”
- 02:20 “from one position to another about the fixed point on it. So we look at the term intercession of two lines. Let's call this line two and line one. When the two of them intersect at points o, they form an angle. This angl...”
- 00:48 “We also look at, by extension, what we call the Pythagoras theorem and what we call the Sokatoa. So what's this trig? Basically, the word trig came from the Greek word and the Greek word means measurements of triangles o...”
Trigonometric Ratios
This lesson covers the identification of sine, cosine, and tangent of an acute angle. It explains how to apply these trigonometric ratios to solve problems involving distances and lengths in right-angled triangles. The relationship between the sides and angles of triangles is also discussed.
- 00:00 “Hello, my name is Oyase, Sunday I'll be taking you mathematics for JSS3 and we have an interesting topic for today, which is trigonometry, an aspect of our measurement and geometry. And the question is what to be the foc...”
- 08:28 “And that is the side which is 1447.14 m. Cest is the representation. Once you can represent it out, it is easier to solve. Now you simply look at this. What are the size that are given? We are given the opposite and we a...”
- 13:29 “Now, 6 meter. The line of the side, line of side distance from point A to the top of the building, that's point B, is X. The line of side, the line at which it looks at the top of the building is X, which is unknown. Now...”
Distance and Displacement
This lesson explains the concepts of distance and displacement in translational motion. It covers how to measure distance without considering direction and how displacement includes both distance and direction. The lesson also discusses the position of an object in relation to a reference point.
- 03:12 “from point P to point Q. This is the object, it's moving from point P to point Q. If we want to calculate, if we take the distance of this one to be 3 km and we have another object B moving on the same point of reference...”
- 11:58 “workshop or to get something like a wire from most of these people that sell it, they use the ant, the ant ants to measure. Although sometimes it is not always accurate, but they already give it a value to it. But in the...”
- 00:00 “Hello everyone, my name is Tijani Muftau Oladipupo I'm your Physics teacher, the topic before me is position, distance and displacement. At the end of the lesson, students should be able to distinguish between displaceme...”
Fundamental and Derived Quantities
This lesson covers the definitions of fundamental and derived quantities in physics. It explains how fundamental quantities serve as the base for deriving other quantities and the importance of measurement in physical science.
- 24:36 “at the pull of the x in the equator, the weight of an object varies. So the fifth one is that it is major using physical balance and the weight of an object it is major using is spring balance. So one important thing we...”
- 07:06 “units. So this table doesn't show completely the number of the life quantity and their units, so we only is limited. As I said, there are numerals, there are in a Zostibu number of these derived quantity. So the first on...”
- 11:04 “should you come across it in another textbook for further research. Pleasure. Pleasure is given as force per unit area. So the force of an object over the area, don't forget that the force is the same thing as weight. Th...”
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.
- 18:37 “A pencil costs 5 Nara more than a ruler. The price of a small exercise book is twice the price of a ruler, calculate the cost of 3 pencils, 2 rulers and 4 exercise books. So you have like 3 variables in this word problem...”
- 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.”
- 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...”