What assumptions are made in order to solve equations? An instructional slideshow provides an overview and guided examples of how properties of equality can be used to justify each step in solving equations.

Here is a very good, interactive presentation that reinforces the concepts of greater than, less than, and equal to. In it, learners are taught the trick that the alligator always "eats" the number of greater value. During the...

Some times simple is as good as gold. Early learners are introduced to the basic mathmatical symbols used to represent addition, subtraction, multiplication, division, and equals; each slide contains one large image of each symbol. 

Here is an entertaining presentation which shows the classic greater than/less than symbols used to compare numerical values. "The alligator always eats the larger number," is what I used to tell my class. This PowerPoint uses the same...

A cute story about Greta and Lester (Greater Than, Less Than) Gator is here for your young mathematicians. They will view a story about two hungry Gators who fall in love. Eventually, they begin to eat. Of course, the alligator always...

Sometimes it is difficult to grasp topographic maps. Here is a clever presentation designed to help your middle school earth scientists understand. Beginning with a side view of a pair of mountains, a graphic guy walks up one slope. As...

If you are beginning a unit of study on atoms, this presentation would be an excellent way to begin! In it, learners discover many facts about atoms. For example, it would take 50,000 aluminum atoms stacked together to equal the...

Knowing how to multiply fractions is an important skill. Knowing when you should multiply fractions is equally as important. This impressive presentation covers both topics quite nicely. Along with slides that present explanations, there...

Just when a young mathematician starts to feel comfortable turning word problems into linear equations, shake things up and throw inequalities in the mix. This excellent, instructive presentation takes the steps for solving an...

How much is a penny, nickel, dime, and quarter worth? Learners count and make various coin variations that equal a given denomination. Each slide contains images and explanations on how one should count coins to add them up.

How is fixing a flat tire like reading and writing? By thinking about each activity properly - identifying the problem and purpose, gathering information, and making inferences - you can exercise your thinking skills equally. This...

A rather simple presentation on identifying equivalent fractions awaits your young mathematicians. Each slide has a piece of pie that's been divided into equal parts, but one of the parts has been further divided into a different...

Here are a few well-thought-out discussion questions intended to accompany a probability activity. Learners consider equal chance outcomes under given situations, they investigate those outcomes by tossing a coin 30 times. They analyze...

How do you solve linear equations? Learn how to solve simple linear equations by applying properties of equality in this instructional slideshow. The materials include step-by-step instructions and key concepts to support understanding.

Partitive division is when you divide a set of objects equally one-by-one. This presentation shows how six items can be divided into three boxes equally. After the concrete division process is complete, the equation is shown along with...

Build a strong number sense and foundation for place value by counting 10's. Learners count 10's up to 100, and see how three 10's equals 30 and ten 10's equals 100.

Three simple slides show the relationship between division and multiplication. Items are grouped into equal sets based on the division problem presented, then related to repeated addition and multiplication.

Contrary to a common popular belief, equilibrium does not mean a reaction has stopped. An interesting presentation covers reactant concentrations and product concentrations. It describes the equilibrium as when the forward rate equals...

Seeming incomplete, this slide show introduces physical science novices to the balancing of forces and drawing force diagrams. The first seven slides work well to meet this purpose. The remaining slides, however, turn viewers over to...

The National Women's History Museum offers a 20-slide presentation that details the history of the Women's Suffrage Movement from its creation in the 1830s through the passage of the Nineteenth Amendment in 1920.

Show your class all the hard work you have put into their lesson by showing this PowerPoint presentation. They will not only be proud of you, but it will help them solve multiplication and division word problems using the algorithms.

This fractions PowerPoint defines and gives examples of multiples and least common multiple, then models how to list multiples and circle the least common multiple. Each step to use in subtracting fractions with unlike denominators is...

An outstanding space science PowerPoint is here for your charges. It provides an effective overview of the Solar System; specifically the Earth and the Moon. The slides contain illustrations of the planets and focus on the Earth's...

After studying the different aspects of atoms and their reactivity, pupils will find this summary PowerPoint useful for review. Some of the slides are informative with labeled diagrams; others give important vocabulary. Teachers may want...