Krista King Math
Power Rule for Exponents
Discover the power to simplify expressions. Viewers learn how to simplify expressions involving powers of exponents. The video covers five examples of this type of problem.
Krista King Math
Unit Price
Extend an understanding of ratios and proportions to include unit rates. The video lesson compares two prices of different sizes using two methods. The instructor first calculates a unit price for each product and compares the costs. The...
Krista King Math
Relationships of Numbers
Challenge your classes to find relationships within fractions. An example asks learners to find the number that is one fifth of the way between two fractions. The instructor uses a number line to reinforce the numeric process.
Krista King Math
Fractions to Decimals to Percents
Find a relationship between different forms of numeric expressions. The video lesson explains the process of converting between fractions, decimals, and percents. The instructor models a problem starting with each of the three forms, so...
Krista King Math
Signed Numbers, Multiplication
Explore patterns in multiplying with positive and negative numbers. Viewers learn the rules for multiplying two signed numbers and then watch as these rules are extended to multiplying with more than two numbers.
Krista King Math
Rules of Exponents
Explore all the rules of exponents in one place. As learners watch the video lesson, they see the different types of power expressions and learn how to simplify. The instructor discusses the process and then demonstrates the rule....
Krista King Math
Exponents
Teach the basics of exponent expressions. A video defines an exponent and demonstrates its meaning using several examples. Examples include variables and both positive and negative integers
Krista King Math
Ratio and Proportion for Chemical Compounds
Explore the strong connection between mathematics and science. Learners see how to use proportions to determine the makeup of chemical compounds. The example shown finds the number of grams of oxygen in a given amount of water.
Krista King Math
Ratio and Proportion, Word problems
Combine several mathematics concepts as classes solve linear systems. After writing a system of equations involving a proportion, learners then solve the system. A video instructor uses the substitution method and must work with...
Krista King Math
Unit Multipliers
How many yards are in 360 inches? Pupils answer this question with the help of a video lesson. The instructor uses dimensional analysis to complete the conversion.
Krista King Math
Ratio and Proportion
Teach your classes how to solve a simple proportion. A video tutorial explains the process of cross multiplying to solve a basic proportion. The instructor reinforces the meaning of a proportion by solving an example by inspection.
Krista King Math
Adding Mixed Measures
Examine an approach to adding measures of various units. An instructor demonstrates a horizontal approach to adding mixed measures by borrowing from the larger measures. The examples shown include time and length.
Krista King Math
Multiplication and Division of Mixed Numbers
Teach the process of multiplying and dividing mixed numbers with a video lesson. The tutorial shows how to multiply and divide these fractions by first converting to improper fractions. After working through two multiplication problems,...
Krista King Math
Addition and Subtraction of Mixed Numbers
Demonstrate the process of adding and subtracting mixed numbers using a video tutorial. A video instructor explains the steps of combining mixed numbers as she works through several examples. The examples add and/or subtract up to four...
Krista King Math
Mixed Numbers and Improper Fractions
Build a strong understanding of the two forms of fractions. The video tutorial defines mixed numbers and improper fractions. After writing a mixed number and improper fraction to represent the same situation, the instructor shows the...
Krista King Math
Percent Markup
How much money does the store make on the new sneakers you just bought? Use the video lesson to explore the formula for determining percent markup based on a selling price. The example shown explains how to determine a selling price...
Krista King Math
Reciprocals
Teach the concept of a reciprocal using this short video lesson. A video tutorial defines a reciprocal as the multiplicative inverse and then demonstrates several examples of finding the inverse. The instructor also explains the...
Krista King Math
Signs of Fractions
Where do you put the negative sign when working with fractions? The video lesson answers this question by explaining that each fraction has three signs. Pupils see how to adjust the signs of a fraction two at a time.
Krista King Math
Multiplication and Division of Fractions
Discover efficient procedures for multiplying and dividing fractions. A video demonstrates two examples of multiplying fractions and then two of dividing. The instructor emphasizes the similarities of division and multiplication.
Krista King Math
Adding and Subtracting Fractions
Develop a strategy for adding and subtracting fractions with your classes. The video shows a procedure for adding and subtracting fractions by finding common denominators. Each example increases in difficulty.
Krista King Math
Division of Zero
Introduce the idea of an undefined solution to your classes. The video instructor simplifies several problems that result in division by zero and an undefined result.
Krista King Math
Equivalent Fractions and Reducing
Explore the meaning of equivalent fractions. A video instructor shows the process of creating equivalent fractions both visually and mathematically. After explaining how to create equivalent fractions from the most simple form, she...
Krista King Math
Reducing Fractions and Cancellation
Discover the importance of prime factorization when working with fractions. Learners see how finding the prime factors aids in the process of simplifying and multiplying fractions. The instructor demonstrates the process of multiplying...
Krista King Math
Rounding Decimals
Demonstrate the concept of rounding decimals through video instruction. The instructor shows examples of rounding to both the tenths and hundredths places.