Decimals Teacher Resources

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...

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...

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

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...

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...

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.

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...

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.

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...

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 equal the repeating decimal and multiplying each side of such...

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...

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....

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...

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...

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...

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...