Brian McLogan
Proportions and word problems set it up and solve
👉 In this video, you will learn how to solve a word problem using proportions. To do this we will identify our unknowns as well as our ratio of terms. We will then proceed to set up a proportion and solve it.
KnowMo
Dividing a Quantity in a Given Ratio
This is an educational video that teaches the viewer how to divide a quantity in a given ratio. The video presents different scenarios and examples, including sharing profits in a company, sharing money for charity, and splitting the...
Curated Video
Estimating Unit Rates: Approximating Ratios in Real-Life Scenarios
In this video, the teacher explains how to estimate unit rates using verbal descriptions and equations. They provide an example of estimating the number of students per teacher in a school, demonstrating the process of rounding and...
Curated Video
Converting Between Part-to-Part and Part-to-Total Ratios with Pictures
In this video, the teacher explains how to convert between part-to-part and part-to-total ratios by drawing a picture. They provide examples and show how hidden information can be found within ratios. By the end of the lesson, students...
Let's Tute
Introduction to Basic Proportionality Theorem
In this video, the teacher explains how to use the properties of triangles to make math easier, less time-consuming, and accurate. They use examples of triangles with parallel lines and ratios of bases to show how to find the areas of...
Let's Tute
Understanding Complementary Angles and Trigonometric Ratios
In this video, the teacher explains the concepts of right angle triangles, complementary angles, and trigonometric ratios for complementary angles. They also discuss the values of sine, cosine, secant, cosecant, tangent, and cotangent...
Curated Video
Finding the Centroid of a Triangle Using Vector Geometry and Coordinate Points
The video is a lecture presentation on vector geometry and the ratio theorem, with a focus on finding the centroid of a triangle. The presenter explains the concept of the centroid as the point of concurrency of a triangle and uses...
Curated Video
Trig Ratios on the X and Y-Axes: Using Coordinates of the Unit Circle
In this video, the teacher explains how to find the sine, cosine, and tangent of angles on the x and y-axes using coordinates of a unit circle. They also discuss quadrantal angles and the concept of undefined trig ratios.
Let's Tute
Trigonometric Ratio Complementary - Angles Of Trigonometry
In this video we will learn complementary angle of trigonometric ratio, basics of trigonometry and angles.
Curated Video
KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Percentage Problems - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Brian McLogan
Converting radians to degrees help me on math - How to pass pre-calculus
👉 Learn how to convert angles from radians to degrees. Recall that pi radians is equivalent to 180 degrees. Thus, when given an angle in radians, to convert the angle to degrees we multiply the given angle radians by the ratio 180/pi.
Curated Video
Modeling Exponential Growth Using Patterns
In this video, the teacher explains how to use patterns to model growth that increases by multiplying, rather than adding. They demonstrate this concept using examples of enlarging photocopies and counting dots in a figure. By...
Curated Video
KS2 Primary Maths Age 9-13 - Ratio, Proportion and Algebra: Inequalities - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Brian McLogan
Convert an angle from degrees minutes and seconds to radian form
👉 Learn how to convert angles from DMS forms to decimal forms. DMS means Degree, Minutes, and Seconds. Minutes is represented by a single apostrophe (') while seconds is represented with double apostrophe ("). 60 seconds = 1 minute and...
Brian McLogan
Applying direct variation to a proportion so solve for the missing variable
👉 Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, proportion problems are problems involving the equality of two ratios. When given a proportion problem with an unknown, we...
IDG TECHtalk
What is Pi Day?
Every year on March 14, math geeks and others celebrate Pi Day. Here's how the celebration got started and other interesting facts around the holiday that's steadily growing in popularity.
Curated Video
Understanding Part-to-Total Ratios with Diagrams
In this video, the teacher explains the concept of part-to-total ratios using a scenario of people's preferences for a roller coaster. The teacher emphasizes that a ratio is not just a comparison of parts, but can also compare parts to a...
Curated Video
KS2 Primary Maths Age 9-13 - Ratio, Proportion and Algebra: Similar Shapes - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Curated Video
KS2 Primary Maths Age 13-17 - Ratio, Proportion and Algebra: Percentage Problems - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Catalyst University
Kinetics: Quenching & Stern-Volmer Plots
Kinetics: Quenching & Stern-Volmer Plots
Professor Dave Explains
Alternating Series, Types of Convergence, and The Ratio Test
An introduction to alternating series, and an overview of the types of convergence and the ratio test.
Brian McLogan
How to determine the slope of a line using slope triangle
👉 Learn how to find the rate of change from graph. The rate of change is the rate at which y-values are changing with respect to the change in x-values. To determine the rate of change from a graph, a right triangle is drawn on the graph...
Curated Video
Visualizing Percents Using 10 by 10 Grids
In this video, students learn how to visualize percents using 10 by 10 grids. The concept of percents is explained, and different ways of expressing a percent are explored. Students also learn how ratios describe patterns and how to...
Curated Video
GCSE Secondary Maths Age 13-17 - Geometry & Measures: Similar Shapes - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...