The 15th activity in the series of 24 helps your classes understand the ppm (part per million) unit of measure. First, scholars experiment with food coloring to determine concentrations before applying their findings to calculate...

Here is one of the better lessons I've come across on how to teach fractions and decimals. This lesson does a great job of showing how these two mathematical representations of numbers are interrelated. Some excellent websites, printable...

Play with paint and decide the ratio to make different shades of green. When mixing paint colors, your painters should decide which ratios make the same shade and what is needed to mix other ratios for a different shade of green. This is...

Students examine two plants that make skateboards. They practice converting fractions to percents in real life applications.

Students examine fractions in this lesson. They practice with how to reduce and perform operations on fractions.

In this pressure and kinetic theory activity, students review Dalton's Law of Partial Pressure, the Kinetic Molecular Theory of Gases, and Graham's Law of Effusion. Students then solve 5 problems using these equations.

Math novices examine how math can help them in real-world situations. They listen to the book The Math Curse by Jon Scieszka, solve various word problems from the book, explore various math websites, write original math word problems,...

Learners explore consumer math by participating in estimate exercises. In this currency instructional activity, students identify and define each piece of U.S. currency and their value to the monetary system. Learners complete several...

Students write math questions that pertain to the Lewis and Clark Expedition.  In this math lesson, students utilize resources in the classroom to help write mathematical questions and answers that relate to the Lewis and Clark...

Students find percents and unit price using popcorn.

Learners, in groups, determine the volume of a box large enough to hold a million dollars. They calculate the dimensions of a bill and the volume of the money.

Students relate recycling to waste reduction. In this science instructional activity, students talk about the environment and how recycling certain natural resources actually saves on energy.  They also discuss what type of...

Second graders explore how to incorporate a new type of technology, the cash register and/or a calculator, as a motivational tool for solving real life problems. They practice estimating money and counting back change from $20.00.

This Math Page tutorial explains how to add and subtract fractions and features a practice section at the very end of the lesson.

This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.

The purpose of this task is to help students realize there are different ways to add mixed numbers and is most appropriate for use in an instructional setting. The two primary ways one can expect students to add are converting the mixed...

[Free Registration/Login may be required to access all resource tools.] Estimate differences of fractions and mixed numbers

[Free Registration/Login may be required to access all resource tools.] In this lesson students find the sum of mixed numbers by renaming fractions with a common denominator. Students examine guided notes, review guided practice, watch...

Students watch a video lesson about adding mixed numbers. The tutorial includes detailed examples that demonstrate two methods for solving.

[Free Registration/Login may be required to access all resource tools.] Add and subtract fractions and mixed numbers with like and unlike denominators

[Free Registration/Login may be required to access all resource tools.] Estimate sums of fractions and mixed numbers

[Free Registration/Login may be required to access all resource tools.] In this lesson students subtract fractions and mixed numbers with like and unlike denominators. Students examine guided notes, review guided practice, watch...

In this interactive, use logic to solve riddles involving a jumping frog contest. Add two consecutive jumps by one frog and place the jumps on the number line, finding equivalent fractions with common denominators to do so. Numbers are...

[Free Registration/Login may be required to access all resource tools.] Evaluate numerical expressions involving sums and differences of fractions.