Students study basic number addition. They define terms together at the board: addition, addend, sum. They discuss key words for addition: in all, altogether, total, sum; and key words for subtraction: how many more, difference, fewer....

Students study geometric shapes, lines, and the primary colors as they create Mondrian-like art prints.

Twelfth graders find the mean, median, and modes of stacks of Lego blocks, They search in newspapers for real life applications of them. They present oral reports on what they have learned.

Students plot the migration paths of birds using latitude and longitude data from a table.

Here is a quick 15 minute instructional activity intended to introduce subtraction. Learners count and subtract gummy bears to complete 5 problems. The lessons suggest that the gummy bears can be saved and used the next day, but gummy...

Learners practice subtraction facts using gummy bears. In this subtraction lesson, students use the gummy bears as a manipulative to solve simple subtraction facts.

In this algebra worksheet, mathematicians identify important vocabulary related to solving equations. They create and simplify expressions and solve word problems. There are a total of 10 questions that provide a good review of the first...

Field trip! The class will review what they know about organisms that dwell in freshwater ponds, then trek down to the old water hole to collect specimens for examination. This includes several web links, useful tips, and an excellent...

When you engage learners in creating symmetrical objects you are also building their vocabulary and math sense. Kids discuss key words such as, asymmetrical, symmetrical, balance, tint, and shade. They use these elements of design to...

Students read The Greedy Triangle and discuss geometric solids. In this geometry lesson, students list the geo-solids in the world and create a graphic organizer to show where geo-solids exist.

Explore fractions with upper graders. They will discover how to show fractions by shading the correct amount shown in a picture (giving them the idea behind part to whole). They also play multiple fraction games using dice, matching...

Students investigate the area of squares and circles. For this geometry lesson, students calculate the area and probability of simple events. They work on a laptop using Safari.

Learners use the on-line affine recurrence plotter to graph equations. They work on-line to create graphs of trout in a trout pond and savings account balances when interest is compounded over time. Links to the four one-day lessons are...

Middle and high schoolers perform transformations. In this web based lesson, students explore dihedral figures. They use the web tools to translate, rotate, and reflect figures. Pupils identify lines of symmetry.

Emerging engineers perform pre-lab calculations in this first of a three-part lesson on model building. They determine the forces of tension and compression in a truss. After completion of the worksheet, pupils will draw a draft of their...

Students add numbers to ten.  In this addition to ten lesson, students play the Ten frame interactive game to learn about addition and facts to number ten.

Students use an Internet tool to explore shapes and how they combine.  In this patterns lesson, students create quilting patterns using various shapes.  Students recognize how the shapes fit together.

We see percents everywhere! Building a solid understanding of their meaning is important to future mathematics, but also as citizens. Young scholars practice rewriting decimals, percents, and fractions. They also determine percents of a...

Does it ever seem like time is slipping through your fingers? Model the passing of time with an hourglass activity in which individuals determine whether hourglasses are the most efficient way to measure time.

Explain the timing of a lake cleanup to the EPA using calculus. A project-based learning opportunity has learners compare rate functions to compute a total change. Their solutions explain the time needed to rid a lake of pollutants.

Block play can teach children about gravity, physics, and spatial relationships. A hands-on lesson incorporates these concepts with an activity in which learners examine the relationship between levels in a pile. Scholars begin to...

Puzzle your way through to a new understanding of area. Scholars learn about the area of polygons through equidecomposability, the idea that polygons that can be decomposed into the same set of pieces have the same area. By using...

The introduction to the lesson mentions a sailor's limited capacity to store drinking water on his ship. Pupils then set up an overnight experiment to remove freshwater from salt water by distillation. There is a math and map activity to...

The centerpiece of this lesson plan is a predator-prey simulation in which colored paperclips represent different species of animals camouflaged against a colored background. Relevant follow-up questions are provided. The activity is...