Krista King Math
Prime and Composite Numbers
Create an understanding of prime numbers with the class after watching a video that examines different numbers and recognizes prime numbers as being those that do not have other factors than one and itself. The narrator then...
Krista King Math
Absolute Value
Investigate with your classes the meaning of absolute value. Here, the instructor explains the definition of absolute value and uses the definition to evaluate different expressions. The expressions include simplifying within the...
Krista King Math
Signed Numbers, Division
Teach dividing with both positive and negative integers by utilizing the video lesson. The instructor gives tricks for recognizing when the quotient will be positive and negative. She works out several examples of different combinations...
Krista King Math
Signed Numbers, Addition and Subtraction
Take the fear out of signed numbers. An educational video explains signed numbers as keeping the sign when both are the same, and offers tricks for what to do when one is positive and the other is negative.
Krista King Math
Opposite of a Number
While the standards don't call for negative numbers to be taught before the sixth grade, many students benefit from learning the concept earlier. A video explains what teachers mean by the opposite of a number. It includes absolute...
Krista King Math
Identity Numbers
Your identity doesn't change when you change clothes! The identity property is very similar. The video explains the identity number for addition and why it is known as that. Then the narrator describes the identity number for...
Krista King Math
Surface Area of Regular Pyramids
Paint, wrapping paper, frosting—so many applications of surface area. The video provides an explanation of the surface area formula and how to apply it to regular pyramids.
Krista King Math
Nets of Pyramids
An instructional video shows how to create nets for different types of pyramids. The instructor demonstrates the variation in the net as the type of base changes.
Krista King Math
Perimeter of Rectangles
Young mathematicians have been using formulas for many years, so give them extra practice with complex problems using those same formulas. Your classes apply strategies to problems that require higher order thinking. Examples include one...
Krista King Math
The Isosceles Triangle Theorem is Actually Really Simple!
The isosceles triangle comes with its own set of properties. A lecturer shows how to apply the Isosceles Triangle Theorem to find missing side lengths or angle measures. The final example involves both square roots and quadratic...
Krista King Math
Line Segments in 3-D: Finding the Midpoint!
It's about to get 3-D! The video shows your class how to expand the midpoint formula to find the midpoint of a three-dimensional segment. The example shown calculates the midpoint using the x-, y-, and z-coordinates.
Krista King Math
Length of a Line Segment
What's the quickest way to get from point A to point B? Follow the line segment! The concept video demonstrates how to find the length of a line segment. Examples range from numeric to algebraic.
Krista King Math
Naming Simple Geometric Figures
Mathematicians use notation for efficiency, so make your classes more efficient! The instructor explains the definition and notation for key elements of geometry such as points, lines, and planes. This is the 37th lesson is a series of...
Krista King Math
Surface Area of Spheres
How much leather is needed to make a basketball? Prepare individuals to answer questions like these by watching a video lesson. The instructor in the video completes three examples that use the surface area of spheres formula.
Krista King Math
Volume of Spheres
Teach classes how to find the volume of spherical solids. A concept video demonstrates the process of finding the volume of a sphere using the formula. Each example presents a variation of the measurements given.
Krista King Math
Surface Area of Cones
Formulas are an essential part of mathematics, so help your class master them. The concept video exposes learners to the elements of the surface area formula for cones. The examples demonstrate the process of using measurements within...
Krista King Math
Volume of Cones
How much ice cream can you fit into a waffle cone? Sounds like geometry! Learners explore the process for calculating the volume of a right and oblique cone in this concept video. The instructor completes three examples of unique cones...
Krista King Math
Nets of Cones
Use a net to catch your classes in the process of learning! A video instruction demonstrates how to draw the net of a three-dimensional cone. The nets include scale and labeling of dimensions.
Krista King Math
Surface Area of Cylinders
Combine the pieces of a three-dimensional solid to find the total surface area. The concept video introduces the formula for finding the surface area of a cylinder. The instructor then applies the formula to various examples, each...
Krista King Math
Surface Area to Volume Ratio of Prisms
Increase pupil understanding of formulas as they apply surface area and volume calculations to determine ratios of different prism sizes. The examples include both a cube and rectangular prism.
Krista King Math
Nets of Prisms
Nothing but net! Pupils learn to use nets to create a two-dimensional representation of a three-dimensional figure. The instructor explains each section of a net of a cube and then of a rectangular prism.
Krista King Math
Equation, Center and Radius, and Intercepts of a Circle
Working with standard equations is essential to mathematics. The instructor shows pupils how to apply the equation of a circle to determine the center, radius, and intercepts of a circle. Learners then view three examples that...
Krista King Math
Intersecting Chords of Circles
Strike a chord with your classes! Use the video to demonstrate the relationship between intersecting chords in a circle. The instructor includes an example that involves a quadratic equation and extraneous solution.
Krista King Math
Intersecting Tangent and Secant Lines of Circles
Interpret and apply the relationships between tangent and secant lines. The instructor explains the relationships of the angles and segments created by intersecting tangent and secant lines.