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Curated Video
Comparing Decimals Using a Number Line
In this video lesson, we explore the symbols used to compare numbers and emphasizes that longer decimal numbers are not necessarily larger. Through examples and visual representations on a number line, students practice comparing...
Why U
Algebra 29 - Understanding Percentages
Percentages are one method of describing a fraction of a quantity. The percent is the numerator of a fraction whose denominator is understood to be one-hundred.
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.
NUMBEROCK
Adding and Subtracting Decimals
The overnight delivery service is scurrying around to get their packages to all of the stores in the city before sunrise. As they drive, they rap and sing about adding and subtracting the decimal values of their various packages. The...
Curated Video
Understanding Rational and Irrational Numbers
In this video, the teacher explains the difference between rational and irrational numbers by looking for repeating decimals. They discuss various types of numbers, including whole numbers, integers, terminating decimals, and fractions.
Curated Video
Converting Fractions to Decimals Using Multiplication
In this video, we explore the relationship between fractions and decimals by using multiplication. We learn that many fractions can be easily converted to decimals without long division or a calculator if we know the decimal equivalent...
Curated Video
Converting Decimals to Fractions to the Hundredths Place
In this video, students learn how to convert decimals into fractions to the hundredths place using visual aids. Explore the concepts of numerator and denominator, and emphasizes the importance of understanding the placement of digits in...
Curated Video
Equivalent Mixed Numbers and Decimals on a Number Line
In this video lesson, students learn about the equivalence of mixed numbers and decimals by comparing them on a number line. It demonstrates how to convert decimals to mixed numbers and vice versa, and shows that all three forms...
Curated Video
Finding Fractional Unit Rates Using a Graph
In this video, students learn how to find a fractional unit rate by using a graph. The teacher explains that unit rates can be expressed as fractions instead of decimals, and provides examples of how to calculate unit rates from graphs....
Curated Video
Reading and Writing Decimals Using a Place Value Chart
This video explains how to read and write decimals using a place value chart. It teaches the concept of decimals as parts of a whole and emphasizes the importance of place value in understanding the value of digits in decimal numbers.
Curated Video
Naming Decimal Numbers through the Thousandths Place
In this video, students will learn how to name decimal numbers through the thousandths place by understanding the concept of place value. The video emphasizes the common mistake of assuming all decimals are read the same and reminds...
Curated Video
Writing Decimals in Expanded Notation
In this video, the teacher explains how to write decimals in expanded notation. They start by reviewing the concept of place value and its importance in our number system. The teacher then demonstrates how to write a decimal number in...
Curated Video
Multiplying Decimal Numbers by Powers of 10
This video explains how to multiply a decimal number by a power of 10 by understanding place value. It demonstrates that multiplying by 10 or 100 shifts the digits to the left, and the decimal point holds the digits in the correct place....
Khan Academy
Decimals and Fractions on a Number Line, Decimals, Pre-Algebra
Using a number line can provide students with a concrete representation of the value various numbers hold. Sal plots six different numbers on a number line. He includes whole, decimal, and negative numbers.
Curated OER
How Do You Solve a Decimal Inequality Using Addition?
In order to solve this inequality use the addition property of inequality to isolate the variable. Don't forget that these are decimal numbers. So be sure to line up the decimals according to the rules of adding decimals.
Curated OER
What is a Terminating Decimal?
What is a decimal number called if it ends and has a finite number of digits? It's called a terminating decimal. Not all fractions are terminating decimals, but all terminating decimals can be written as fractions. Watch this video and...
Curated OER
How Do You Solve a Decimal Equation Using Addition?
Use the addition property of inequality to solve this problem. Since this is a subtraction problem, the opposite is used to isolate the variable. It's just a one-step solution. But don't forget this is a decimal problem so line up the...
Curated OER
What's a Percent?
Percent is the number of something per 100. It can be written with a percent sign (%), or as a decimal, or as a fraction- a number over 100.
Curated OER
How Do You Use the Formula for Compound Interest?
Money, money, money. Love it! You want to earn interest on what you put into your bank account. So you make an investment to earn compound interest and you want to know how much money you will have in 60 months. Well, there's a formula...
Curated OER
How Do You Divide a Decimal by a Decimal?
Many learners would look at this decimal division problem and just skip it. Don't let them do that! Figure out how to help your learners master long division. The teacher helps make decimals and long division seem doable.
Curated OER
How Do You Use the Formula for Simple Interest?
I=prt is the formula for simple interest. What does each variable represent? I =interest, p =amount originally invested, r =rate of interest (usually in percent), t =time. Now all you have to do is plug in the numbers and do the...
Curated OER
How Do You Figure Out if a Square Root is Bigger than Another Number?
You have been given a square root and need to compare that to a decimal number to find out which one is bigger. How can you make that comparison? One way to do this is to find the square root of the square root number and then compare it...
Curated OER
What's a Percent?
Percent is the number of something per 100. It can be written with a percent sign (%), or as a decimal, or as a fraction- a number over 100.
Curated OER
What is the Percent Equation?
What number is 40% of 30? Learn the formula and be able to figure out all of the percent problems. The instructor demonstrates the basic formula. Then she shows how and where to plug in the numbers according to what the problem is asking...