How many right triangles can you find in a prism, cone, or pyramid? Using right triangles to find lengths in three-dimensional figures is the focus of the lesson. After working with the Pythagorean Theorem to find missing side...

It's the parts that make the whole. Learners apply volume formulas to composite figures to find the total volume of the figure. Previous lessons in this series taught the methods for finding the volume and/or dimensions of...

Don't stuff money under your mattress. To find out why learners first complete a task determining how $24,000 in cash would affect the height of a mattress and whether this same amount would fit into a suitcase of given dimensions....

Continue a study of calculus by using a slideshow to introduce the concept of continuity. After defining the term, the presentation provides examples of functions that are discontinuous and introduces different types...

Use a graph to tell a story! Given a graph, young scientists create a story to match. They must provide their own axes labels and description of the scenario. The graph has increasing, decreasing, and constant sections.

Learners study a variety of math concepts in the context of cooking up a meal. In this math lesson, students calculate surface area and volume. They draw and interpret different types of graphs.

Students connect literature (story Jelly Beans for Sale by Bruce McMillan) to math concepts. In these estimating and money lessons, students work with jelly beans, unifix cubes, pennies, nickels, dimes, and quarters, to estimate and make...

Although the methods are all scientific, forensic science was started by police officers rather than scientists, who relied on observation and common sense. Young detectives use many tools to solve crimes around the school in a...

Use dance to help learners conceptualize line segments, rays, lines, and planes. They choreograph dances that show dimensional space. Dancers start by pondering space, point, and lines as the teacher draws them in the air. Each...

An excellent activity that effectively pulls together the concepts of area, fractions, and equivalent fractions! Using 3x2 rectangular arrays, 3rd graders are introduced to the concept of area in terms of square units. Building on this...

Stay positive, teaching about integers just got a little easier! Explain how positive and negative numbers are opposites using number lines and real-world examples. The included assessment provides an excellent opportunity to check for...

How likely is it that the school cafeteria will serve chicken tomorrow? Discover the concept of probability with the roll of the dice. Pupils evaluate the liklihood of several statments about everyday life. Then, a mathematical...

Groundwater is an essential natural resource, not to mention a fascinating topic to study. Here is a series of twelve amazing lessons on the water source and how we use it in our daily lives. Concepts require higher math and physics...

What a terrific way to have your class review addition concepts. Learners play a math game in which they answer questions relating to adding to 10, adding with regrouping, adding without regrouping, and adding three numbers.

If you're looking for a presentation to assist you in your teaching of triangles, this one could be for you. In it, learners are shown how triangles are classified by the size of their angles and by their sides. These are tricky concepts...

Here is a fabulous lesson plan on subtracting decimals with different numbers of decimal places. There are teacher-led activities for learners to engage in, including, modeling decimal subtraction through decimal squares, looking at...

It's shark week! In this problem, young mathematically minded marine biologists need to study the fish population by analyzing data over time. The emphasis is on understanding the average rate of change of the population and drawing...

The ever popular ladybug serves as a excellent tool for developing the number sense of young mathematicians on this math instructional activity. Presented with a series of colorful pictures, children practice counting and writing the...

Some resources are just wonderful for stimulating creative thinking and concept understanding. Children are encouraged to explore odd and even numbers through a variety of creative activities. They group items, read a story, make an...

What a brilliant way to present this topic! This presentation uses counters and an interactive techniques to show young mathematicians how to add numbers by creating groups of ten. The graphics make it easy to understand this concept....

Learning how to regroup can be a difficult concept to learn, as well as teach. This PowerPoint does an excellent job at visualizing the process with step-by-step guidelines and base ten animations. There are multiple examples for...

Providing a step-by-step explanation of two-digit multiplication, a list of vocabulary words associated with this concept, and great examples, this resource would be a terrific classroom addition. Besides the set of of simple...

Working with fractions that have unequal denominators is one of the most difficult concepts for young mathematicians to master. Here you will find a fine lesson that should help youngsters begin to get a grasp on this important...