Corbett Maths
Angles in the Same Segment – Proof
If angles intercept the same arc, the angles must be the same size. The quick video talks through the proof of showing the reason two inscribed angles that intersect the same arc have the same measurement. Pupils then create their own...
Corbett Maths
Pressure
Do not let the pressure get to you. After watching a video on calculating values using the pressure formula, pupils work problems on two worksheets. The problems range from finding the pressure, the force, or the area given the other two...
Corbett Maths
Shortest Distance between Line and Point
A short video shows how to find the shortest distance between a line and a point on the coordinate plane. Using the fact the shortest distance is the perpendicular, the presenter shows the class how to find the intersection of the two...
Corbett Maths
Quadratic Inequalities
Develop a sketchy approach to solving quadratic inequalities! Using a sketch of a graph, the presenter shows a way to solve quadratic inequalities. Pupils then practice that method to solve their own quadratic inequalities and apply the...
Corbett Maths
Algebraic Proof
Proofs do not exist only in geometry. The video shows the class different ways that proofs appear in algebra. Pupils work through a variety of algebraic proofs involving the divisibility of an algebraic expression or whether it is even...
Corbett Maths
Volume of a Sphere
The volume of a snowball's chances in ... Using a snowball, the video introduces the formula for finding the volume of a sphere. The presenter then talks the class through the process of finding the volume after determining the length of...
Corbett Maths
Volume of an L-Shape Prism
The formula works no matter the shape of the base. A short video shows how to find the volume of a prism when the base is a composite shape created by rectangles. Handouts provide the class members opportunities to practice the skill and...
Corbett Maths
Volume of a Prism
Not all prisms are cubes. A short video introduces the definition of a prism and uses that definition to create a general volume formula. Worksheets provide pupils several opportunities to practice finding the volume of a wide variety of...
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
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...
Mathispower4u
Write and Evaluate a Variable Expression for Total Cost (ax+b)
It's just the cost of the game. Using a two-part example, the presenter writes an expression to determine the amount friends spend to attend a game. The video shows the total amount they spend when given the cost of each ticket.
Mathispower4u
Write and Simplify a Variable Expression for Age (ax+b)
Age is just a number. The resource develops a multi-step expression to represent a person's age. Using the video, the presenter creates expressions for the age of four different people that build upon each other. The final age requires...
Mathispower4u
Writing Basic Algebraic Expressions (Example 2)
Just how much farther? A helpful video provides an example in determining an algebraic expression involving distance traveled. Graphics provide an illustration to demonstrate how to find the remaining distance to travel given a known...
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
Reflection Symmetry: Lesson
Symmetry is a natural thing. The video introduces the concept of reflection symmetry using a smiley face and a pentagon. Using pictures from nature, the installment of an extensive geometry playlist determines whether the object has...
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
Prisms: Lesson
Set the bases of a conversation on prisms. The segment of a playlist on geometry introduces prisms and their parts. After visualizing prisms, the video discusses how to find the surface area and volume of prisms.
CK-12 Foundation
Three Dimensions in Two Dimensions: Lesson
Slice up solids. A portion of a geometry playlist introduces two conventional ways to visualize 3-D figures in 2-D. The resource defines cross-sections and nets and provides examples of both.
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...