Decimals Teacher Resources
Find Decimals educational ideas and activities
Showing 1 - 20 of 8,079 resources
Base Ten Activity
Base ten blocks are great tools for developing not only an understanding of whole numbers, but of decimals as well. This upper-elementary lesson uses these versatile manipulatives and the array model to teach young mathematicians how to multiply and divide decimals.
4th - 6th Math 88 Views 60 Downloads CCSS: Designed
Represent Equal Decimals Using Zeroes
How can two decimals be written differently but still be equal? With zeroes! That's what learners work to understand in the third of five lessons on reading and writing decimals to the thousandths place. Visuals that help learners grasp the concept include dimes versus pennies and tens blocks versus ones blocks and hundreds blocks.
6 mins 4th - 6th Math 6 Views 5 Downloads CCSS: Designed
Dimes and Pennies
Help your fourth graders make cents out of fractions and decimals with this short word problem. After learning that dimes are one-tenth and pennies one-hundredth of a dollar, students write a fraction and decimal for a given number of coins.
3rd - 5th Math 7 Views 7 Downloads CCSS: Designed
Young mathematicians demonstrate their understanding of fractions and decimals as they investigate the flags of nations from around the world. Using the 10x10 grid provided on the accompanying worksheet, students draw a country's flag of their choosing and determine the fractions and decimals representing the proportion of each color in the design.
4th - 6th Math 61 Views 49 Downloads CCSS: Designed
Mr. Khan reminds us that the most important thing to remember when subtracting decimal numbers is to line up the decimal points. He subtracts 3.600 from 9.005, explaining his thinking as he completes the process. Assign the viewing of this tutorial as homework and then have youngsters come to class ready to practice together!
2 mins 5th - 7th Math 14 Views 63 Downloads CCSS: Adaptable
Rewrite a Fraction as a Decimal Using Division
Change any fraction into a decimal by doing long division. This video reviews divisor, dividend, and how to do long division. Divide different numbers and relate them to a number line to see that decimals and fractions can be the same number.
4 mins 5th - 7th Math 5 Views 4 Downloads CCSS: Designed
Repeating Decimal as Approximation
You are used to teaching repeating decimals with bar notation that keeps us from writing that number over and over again; now teach what the over and over again represents. This activity allows your mathematicians to explore the infinite decimal and see how different calculations get us close to the original number, but not quite exactly on it.
6th - 9th Math 10 Views 5 Downloads CCSS: Designed
Equivalent fractions approach to non-repeating decimals
Trying to get your class to think of decimals as fractions and vice versa can lead to interesting discussions. After all, we can usually understand quickly that 1/4 is .25 but why is 1/7 not so easy to convert? This activity looks at these problems and tries to draw conclusions about why certain numbers are easier to work with mentally, leading to interesting insights into our number system and powers of ten.
6th - 8th Math 25 Views 25 Downloads CCSS: Designed
Read and Write Decimals Using Base Ten Blocks
Read and write decimals to the thousandths using base ten blocks in the first of five videos. Money serves as a visual for demonstrating the meaning of a decimal, and base ten blocks are cleverly positioned below a place value chart to help learners see the correlation between parts of a whole.
5 mins 4th - 6th Math 19 Views 11 Downloads CCSS: Designed
Compare Decimals Using Base Ten Blocks
Use base ten blocks to gain a deeper understanding of how decimals stack up against each other. The fourth of five videos, it focuses on reading and writing decimals to the thousandths, using a thousand cube to represent one whole. Learners get to see two examples of comparing two numbers using the base ten blocks.
3 mins 4th - 6th Math 10 Views 7 Downloads CCSS: Designed
Compare Decimals Using Fractions
Fractions have many applications, and in this video, they are translated into an opportunity to compare the relative size of decimals in word problems. A review of greater than and less than symbols kicks off the instruction, followed by a discussion of the common misconception that a longer number is greater in value.
4 mins 4th - 6th Math 3 Views 0 Downloads CCSS: Designed
Multiplying decimal numbers isn't that much different than multiplying whole numbers. If you need a little extra support, this video may help. Sal shows how to multiply 23.12 by 0.5. He takes care to line up the decimal points, regroup, and place the decimal in the proper place when he finishes his computation.
3 mins 5th - 7th Math 18 Views 114 Downloads
Divide decimals. Watch as Sal explains how to divide 1.03075 by 0.25. He provides a step-by-step process that is easy to follow, clear, and well-organized. Note: This would be great for a teacher prepping for a math lesson or as supplemental material to show in class.
6 mins 5th - 7th Math 20 Views 100 Downloads
Multiplying Decimals 3
Have your young mathematicians complete this practice problem along with Sal. To solve this thinking problem, they will need to multiply decimal numbers in order to determine the cost of 14.6 gallons of gas when gas costs $2.70 per gallon.
3 mins 5th - 7th Math 8 Views 36 Downloads
Rewrite a Fraction as a Repeating Decimal Using Division
Show how fractions can be repeating decimals through long division. Practice dividing before placing a few examples on a number line. Shows how to round repeated decimal answers and how your learners can use the Table of Ninths as a shortcut.
5 mins 5th - 7th Math 3 Views 0 Downloads CCSS: Designed
Divide Decimals Using the Standard Algorithm
Go step by step through a division problem and your learners will feel confident with dividing decimals. This video reviews division and the important steps needed when using decimals. Shows a visual understanding of what dividing by a decimal represents.
4 mins 5th - 7th Math 15 Views 16 Downloads CCSS: Designed
Compare Decimals Using a Number Line
Check out how a number line can be used to compare decimals to the thousandths place in the second of three videos. The instructor helps avoid the pitfall of thinking that a longer number equals a number of greater value. She then thoroughly walks through several samples, including a word problem, of comparing decimals on the number line.
2 mins 4th - 6th Math 10 Views 12 Downloads CCSS: Designed
Compare Decimals Using an Open Number Line
Learn a new tactic for comparing decimals: the open number line! This is the final video in a five-part series on reading and writing decimals to the thousandths. Beginning with a review of greater than, less than, and equal symbols, the lesson continues with a discussion of how many times greater each place is than the previous place, and how greater numbers are to the left, lesser to the right.
5 mins 4th - 6th Math 18 Views 16 Downloads CCSS: Designed