# Decimals Teacher Resources

Find Decimals lesson plans and worksheets

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Curated OER

#### Fractions Forever!

Middle schoolers identify proper, improper fractions, and mixed numbers.Â They reduce fractions to their lowest terms. They add and subtract fractions with different denominators, and multiply and divide fractions, as well as decimal...

Curated OER

#### Decimals Decide Olympic Champions

The class discovers how a decimal can make all the difference in the Olympics. As they learn about decimal place values, they compare and contrast data and demonstrate decimal values using manipulatives.

Curated OER

#### Decimal Questions

Money and measurement are often expressed as decimal numbers. Here are 20 well-worded problems intended to put decimal numbers in a real-world context. Learners will add, subtract, multiply, and divide to determine the answer to each...

Mathispower4u

#### Find the Height of a Triangle Given Area (Odd Base and Decimal Area) (Example)

There is more than one way to find the height of the triangle. Scholars view a video that finds the height of a triangle given the area and the base. The example involves fractions and decimals as the presenter shows how to solve the...

Curated OER

#### Compare and Order Whole Numbers and Decimals

Here is a comparing and ordering worksheet in which learners read and solve six problems in which decimal and whole numbers are ordered and compared.

Curated OER

#### Percentages

A helpful presentation that demonstrates the similarities between fractions and percentages Learners are first shown a grid of 100 squares that has a certain amount shaded in. They are taught how to assign both a fractional value and a...

Curated OER

#### Write Zeroes in the Dividend

Here is a fine presentation on the finer points of solving a long division problem. Mathematicians are introduced to the divisor, the quotient, and the dividend. They are shown the series of steps necessary to solve these types of...

Curated OER

#### How Do You Convert From Decimal Notation to Scientific Notation?

The instructor demonstrates how to convert a number written in decimal form to scientific notation. An example is given for a number with a positive exponent and an example is given for a number with a negative exponent.

Curated OER

#### How Do You Find the Range of a Data Set?

Looking for the range of a set of numbers? Well, that means you are looking for the difference between the largest value and the smallest value. So first, write the numbers in order from least to greatest. Then identify the largest value...

Curated OER

#### What is the Formula for Simple Interest?

I=prt is the formula for 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 calculations.

Virtual Nerd

#### How Do You Figure Out the Volume of a Solution Using Percents?

A word problem, chemistry, and percent? I know you want to throw your hands in the air and run away from this problem, but please don't. Pay close attention as the instructor helps you unpack this word problem to set up an equation that...

Illustrative Mathematics

#### Converting Decimal Representations of Rational Numbers to Fraction Representations

A rational number is a ratio of two integers. Discuss with your class how to convert the rational numbers of repeating decimals to fractions. A good commentary on letting x equalÂ the repeating decimal and multiplying each side of such...

Illustrative Mathematics

#### Buying Gas

A quick problem to test your middle schoolers' knowledge of dividing with decimals. Also a good practice of unit rates, they must compute the cost of one gallon of gas when given the total amount for a fill up. Can be used as a preface...

Illustrative Mathematics

#### Half of a Recipe

Kids love to cook! What is a better place to learn mixed numbers than with a recipe? It is up to learners to decide how they want to divide this recipe in half. They may choose to model the mixed number and then divide the model by two....

Curated OER

#### Long Division of Numbers - Arithmetic Basics

Watch and learn how to do long division. You'll see and hear the process in an easy to follow step-by-step way. There is no doubt that this is a helpful tutorial great for those in need of a long division refresher. Multiple colors and...

Curated OER

#### Estimating Surface Area

Kids might enjoy this dramatic presentation on estimating surface area. The fake Transylvanian accent is a bit distracting but the problem solving practices are sound. Dr. Crazy Pants rounds his decimal measurements then multiplies...

Curated OER

#### How Do You Find the Median of a Data Set?

Mean, mode, median? What's the difference? How do you find them? The teacher focuses on explaining median in this video. She gives a good explanation and shows how to order a data set to find the median number. This given data set has an...

Curated OER

#### How Do You Find the Range of a Data Set?

Curated OER

#### Get it Straight Mr. Decimal!

Students work with decimals. In this decimal instructional activity, students participate in a hands-on group activity that enable them to review to how to appropriately add and subtract decimals.

Curated OER

#### Which Decimal Is Larger?

For this on-line math worksheet, students complete 10 multiple choice questions where they choose the larger or smaller of two decimals. Students can check their answers at the end of the worksheet.

Curated OER

#### Getting The Point

Young scholars complete a unit of lessons on the relationships between decimals, whole numbers, and fractions. They use paper strips to solve fraction problems, view and solve examples, and use calculators to convert fractions into...

Curated OER

#### Adding and Subtracting Decimal Hundredths

In this math worksheet, students add and subtract using decimals. Students complete 32 horizontal problems, writing the answers in the space provided.

Curated OER

#### Add and Subtract Decimal Tenths

In this math activity, students add and subtract using decimals in the tenths place. Students complete 32 horizontal problems, writing the answers in the space provided.

Curated OER

#### Add and Subtract Decimal Thousandths (D)

In this decimals worksheet, students solve 50 problems in which decimal numbers to the thousandths place are added or subtracted. Problems will need to be rewritten on another paper.

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