Corbett Maths
Enlargements
Count on the scale to enlarge a figure. The video shows how to create an enlargement given a scale factor and a center of enlargement. The presenter multiplies the vertical and horizontal distance by the scale factor to find the new...
Corbett Maths
Direct Proportion
Direct change by finding the constant. Using two known values within a direct proportion, the resource shows how to find the constant of proportionality. Once individuals do that, they then find any value given the other. The video works...
Corbett Maths
Listing Outcomes
Make a list and check it twice. Many times, it is beneficial to make a list of the possible outcomes when trying to determine a probability. The resource shows how to systematically make a list and then calculate the probability of...
Corbett Maths
Pythagoras Rectangles and Isosceles Triangles
When does the Pythagorean Theorem come in handy? An intriguing video uses the Pythagorean Theorem to solve problems other than simply finding the length of a side of a right triangle. Pupils find the diagonal of a rectangle and the...
Corbett Maths
3D Pythagoras
Calculate one hypotenuse then repeat. The resource provides a variety of ways for finding the length of the diagonal in a prism. Using the Pythagorean Theorem, pupils find a variety of distances in 3-D figures. The distances range from...
Mathispower4u
Solving a Multi-Step Linear Equation in One Variable (Example)
An equation has parentheses on both sides of the equation, including a need to use the distributive property and recall the order of operations. The resource works through the steps to isolate the variable and finds the solution to the...
Mathispower4u
Solve a Two-Step Equation with Decimals (Example)
Oh no, there are decimals! A resource shows a method to solve a two-step equation that contains decimals. Using a process of clearing the decimals, the presenter converts the equation into a basic two-step equation with whole numbers. At...
Mathispower4u
Solving Two Step Equations Involving Decimals
With two examples, the presenter shows how to solve a two-step linear equation that contains decimals. Prior to solving the first example, the presentation reviews the steps to solving any two-step linear equation. The examples require...
Anywhere Math
Frequency Tables and Histograms
If the shoe fits, include it in the display. The presentation uses shoe size to introduce organizing data within a frequency table and a histogram. Using another histogram, the video outlines how to interpret the data display. To...
Mathispower4u
Solving Two-Step Equations (Basic)
Solving equations is as easy as 1-2-3. Using two examples, the video shows the order of the steps to use when solving a two-step equation. It uses a vertical approach to perform the inverse operations to isolate the variable. To finish,...
Mathispower4u
Simplify and Evaluate Algebraic Expressions 2
These are equivalent, too. The resource presents two expressions to simplify that require using the distributive property and/or combining like terms. After simplifying the expressions, the video shows how to evaluate the expressions to...
Mathispower4u
Simplify Algebraic Expressions (Basic)
To simplify or not to simplify, what should scholars do? Using several examples, the video works through the process of simplifying algebraic expressions. The resource restricts simplification to using the distributive property and to...
Mathispower4u
Modeling Change with Equivalent Equations ax + b = c
Mix it up while representing changes in a drink recipe. Using a scenario about making a party drink, the video creates an equation. The process uses equivalent expressions on each side of the equation to build the final equation. By...
Mathispower4u
Solve an Equation with Variable Terms on Both Sides (Example)
Shouldn't the variable be on only one side? Using one equation, the resource shows how to solve an equation in which there are variable terms on both sides of the equation. The short video walks through each step needed to isolate the...
Mathispower4u
Solve Two Step Linear Equations in One Variable (Example)
Introduce young mathematicians to a different kind of two step. Using four different equations, the resource reinforces the steps to solving a two-step linear equation. The video works each problem and demonstrates how to isolate the...
Mathispower4u
Simplify and Evaluate Algebraic Expressions 1
Evaluate the equivalence of expressions. A helpful video walks through the process of simplifying two expressions. Using values for the variables, the presentation evaluates the original expression and the simplified expression to show...
CK-12 Foundation
Transformation - Rotation: Lesson
Change places by pivoting the figure. The section of a geometry playlist introduces rotations by making the connection to rotational symmetry. The presentation provides formulas to use with the coordinates when rotating a figure around...
CK-12 Foundation
Calculating Areas of Sectors and Segments: Lesson
Find a slice of pi. The presentation talks through the process of finding the area of sectors and segments of circles. While working examples, the installment of an extensive geometry playlist uses the process to show the formulas for...
CK-12 Foundation
Area and Perimeter of Triangles: Lesson
Go from a parallelogram to a triangle. A segment of an extensive playlist on basic geometry shows the derivation of the formula for the area of a triangle. The resource works examples that require finding a missing side or height to...
CK-12 Foundation
Spheres: Lesson
Unwrap the surface of a sphere. A section of an extensive geometry playlist introduces the formulas for finding the surface area and volume of a sphere. The video includes a clip of how the surface area formula is developed by unwrapping...
CK-12 Foundation
Pyramids: Lesson
Pyramids: they're not just in Egypt! The segment of a large geometry playlist introduces the formulas to find the volumes and surface areas of regular pyramids. Using the formulas, the presentation works several examples to ensure your...
CK-12 Foundation
Calculating Area of a Circle: Lesson
It really is as easy as pi. The segment of a massive geometry playlist points out that the formula for the area of a circle is a relatively simple one. Using the formula, the presenter shows examples of finding the area of circles.
CK-12 Foundation
Circumference: Lesson
It all depends what is given. The section of a large geometry playlist discusses the two formulas for finding the circumference of a circle. With the aid of the formulas, the presenter demonstrates finding the distance around circles in...
CK-12 Foundation
Area and Perimeter of Rhombuses and Kites: Lesson
Flip the triangles up and create a parallelogram. Using the idea of transformations, the video develops the area formula for rhombi and kites. The segment of an extensive geometry playlist uses the formula to find the areas of different...