Hi, what do you want to do?
Catalyst University
Factors that Affect Diffusion Rate
In this video, we will discuss four factors that affect the rate of diffusion: molecular weight, concentration gradient, surface area-volume ratio, and the temperature.
Curated Video
Finding Square Roots of Perfect Squares
In this video, the teacher explains how to find the square root of perfect squares by visualizing squares and using new notation. They also discuss the definition of a square root and explain why not all numbers have exact square roots....
Curated Video
Finding the Square Root of Perfect Squares
In this video, the teacher explains how to find the square root of numbers that are perfect squares. They introduce the square root symbol and explain that it represents the side length of the square formed by the perfect square. They...
Professor Dave Explains
Proving the Pythagorean Theorem
One easy demonstration that proves the validity of the Pythagorean theorem.
Curated Video
Calculating Surface Area of Rectangular Prisms
In this video, the teacher explains how to calculate the surface area of a rectangular prism by analyzing its six faces and computing their areas. The teacher demonstrates the process using examples of different rectangular prisms,...
Curated Video
Understanding Perfect Cubes and Cube Roots
In this video, the teacher explains how to determine if a number is a perfect cube and how to find its cube root. The teacher uses the analogy of squares and cubes to illustrate the concept and provides examples and practice problems to...
Curated Video
Estimating Square Roots by Comparing to Perfect Squares
In this video, students learn how to estimate the value of square roots by comparing them to perfect squares. The teacher explains the concept of irrational numbers and demonstrates the process of finding two perfect squares on either...
Curated Video
Converting the Equation of a Circle from General Form to Standard Form
In this video, the teacher explains how to convert the equation of a circle from general form to standard form using algebra. They demonstrate the process of completing the square to create perfect square trinomials and then simplify the...
Curated Video
Interpreting Scatter Plots: Linear or Nonlinear Relationships
In this lesson, students will learn how to interpret scatter plots by determining if they are linear or nonlinear. By analyzing the shape of the graph, students will be able to identify whether the relationship between the variables is...
Curated Video
Finding the Perimeter of Polygons with More than Four Sides
In this video, students are taught how to find the perimeter of polygons with more than four sides by adding the side lengths. The teacher emphasizes the difference between perimeter and area, and highlights common mistakes students...
Curated Video
Using the Area of Squares Proof to Relate Side Lengths of a Right Triangle
In this lesson, students will learn about the relationship between the side lengths of a right triangle using the area of squares proof. They will understand that the sum of the areas of the squares formed by the two legs of a right...
Curated Video
Solving Non-Right Triangles Using the Law of Sines
In this video, you will learn how to find the missing side lengths of a non-right triangle using the Law of Sines. The Law of Sines relates the angle measures and side lengths of an oblique triangle.
Curated Video
Understanding Rational and Irrational Numbers
In this video lesson, the teacher explains the difference between rational and irrational numbers. The teacher provides examples and guides the viewer in determining whether a given number is rational or irrational.