When guess and check gets old, it's time to start graphing! An instructive lesson explains how to solve a system of linear equations using graphing. Equations are in both slope-intercepts and standard form. 

Food companies understand how to use math to their advantage. Learners explore the math related to the packaging and serving size of yogurt. They then use unit analysis and percent values to make decisions on the product development.

Snow, ice, and water are all composed of H2O. Does that mean they all have the same volume? Discover the ways that the densities of these substances determine their volumes, and how they change based on their current states of...

Cut-and-paste a great activity into your lesson plans. Scholars analyze real-world problems involving proportions. To change things up a bit they cut-and-paste quantities to create a proportion on their way to solving the problems.

Examine how organisms interact through a hands-on experience. Learners study population dynamics and distribution during an informative five-lesson unit. The focus is on the ocean environment and the organisms within it.

The class gets their mean and median all in a row with an assessment task that uses a population of ducklings to work with data displays and measures of central tendency. Pupils create a frequency chart and calculate the mean and median....

Scholars identify and continue the numerical pattern for the number of wheels on a train. Using the established pattern and its inverse, they determine whether a number of wheels is possible. Pupils finish...

The class braids irrational numbers, Pythagoras, and perimeter together. The mini-assessment requires scholars to use irrational numbers and the Pythagorean Theorem to find perimeters of rugs. The rugs are rectangular, triangular,...

Using a real-world example, this problem illustrates the thought process that learners need to engage in to understand adding mixed numbers with common denominators. First by looking at estimation, and then by drawing models that...

In this math activity, students practice choosing the appropriate measurement for different types of objects that are commonly found in a classroom.

For this rounding worksheet, learners round numbers to the given place value.  They draw models of each given situations.  This one-page worksheet contains 8 problems.

Twelfth graders discuss centrifugal force, frictional force, and critical speed as it relates to the popular amusement park ride, the Gravitron.

This hands-on resource has future trip planners analyze graphs of mileage, gasoline costs, and travel time on different routes. While this was originally designed for a problem-solving exercise using a Michigan map, it could be used as a...

In this estimation activity, students examine sets of items. They determine which set of items have closest to 13 in the first example, and which has closest to 10 in the second example.

In this estimation and addition worksheet, students complete 3 different sections with 6 questions in total. The first section asks students to do addition using the British pound. The second asks them to estimate and then calculate...

In this estimating fractions learning exercise, students solve 20 various problems that include estimation in each. They estimate the sum or difference in each of the problems shown on the sheet. Students calculate each mixed number into...

Learners analyze a multi-seeded fruit, such as tomato, pepper, squash, watermelon, etc. They remove and count the seeds from the fruit and hypothesize/calculate the reproductive rate of that organism.

In this decimals worksheet, 5th graders solve 20 different problems that include adding and subtracting various decimals. First, they add or subtract the decimals like they would whole numbers. Then, students line up the decimal points...

Students practice the concepts behind fractions, decimals, and percents by using sports statistics on baseball cards. In this baseball math lesson, students use fractions and estimation to calculate statistics. Students calculate batting...

Third graders relate the process of division to subtracting equal groups. Through guided practice and teacher demonstration, they complete division problems using a subtraction method. Students complete problems independently for...

Third graders are introduced to how to divide by 3 and 4. They are told that are going to use the same procedures as they did on yesterday, except with new divisors. Students turn their attention to the Paddle Problem on page 206 of...

Third graders divide by 2 and 5. In this math lesson, 3rd graders label the parts of a division sentence. Students solve division sentences using multiplication.

Practice angle estimation with a worksheet. First learners estimate three angles within 15 degrees, then they measure and name each angle. A reference website is given for additional activities.

Young scholars work with circles, angles and estimating angles in the night sky. In this circles and angles lesson, students practice measuring a degree using the circumference of a circle and apply the degree to determine a way to use...