How many large and small watermelons did he sell? Just use the given information to write and solve a system of equations! The two videos accompanying the lesson explain the substitution method and then introduce problem solving. The...

Students measure using the metric system. In this geometry lesson, students solve problems using grams, meters and liters. They convert between the US units of measurements and the Metric System.

Create your own solar system using a simulation. Young scientists explore the components of a stable solar system through trial and error. Using the simulation, they place planets and watch as they orbit safely or cause fatal collisions.

Which activity gets your heart pumping more: using the computer, climbing the stairs, jumping rope, running, or walking? Youngsters take a heart rate reading after 30 seconds, one minute, and three minutes of each activity. The handout...

When resting, blood goes from the heart to the lungs and back in about six seconds. An animation of the heart starts simply by showing blood flow through the two halves. It builds in complexity slowly over the course of five slides,...

Launch a lesson that's sure to capture middle schoolers' interest! Exploration enthusiasts examine the planets of our solar system using an activity from PBS's Space series. The resource includes images and information for each planet,...

The topic of this video is sure to get hearts pumping! Mia and Zoe just finish racing and discuss what is going on in the circulatory system. They expound on the capillaries, veins, arteries, the structure of the heart, and the...

Orbit diagrams appear to be a work of mathematical art. The simulation helps scholars build their own systems of planets, stars, moons, etc., to observe their orbits. By altering their positions, velocities, and masses, a variety of...

In this systems of equations learning exercise, students solve 20 problems. The first 6 problems have one equation in the y-intercept form. The following 10 problems have one variable that has a coefficient of +1. The final four problems...

Students are introduced to the nervous system. In groups, they research the relationship between disease and injury and how it affects the nervous system. To end the lesson, they present their findings to the class and create a poster.

Solve systems of equation using graphing! In this algebra lesson, learners use the TI to graph two lines and identify the number of solutions. They perform interactive graphing on the navigator.

Solve systems of equations with your super smart upper graders. They solve systems of equations and then graph two lines to find where they intersect. The focus on the activity is to have learners explore moving a point to...

The class solves systems of linear inequalities. They graph lines and identify the point of intersection.They graph lines and identify the boundary that represent the solution and solution set.

For this systems of equations worksheet, students solve 13 systems of equations.  Students use elimination to solve three variable systems of equations.

Students investigate the digestive system. In this human biology lesson, students read an article about the digestive system and go onto a suggested website to review what they have learned. Students are asked questions as an assessment.

Students investigate the solar system and its moons. They conduct research in groups to find information. Also the teacher uses models of the planets in order to teach different facts about the solar system through the use of...

Learners investigate systems of equations as they use the Ti-Navigator to explore scenarios about dog races and NASCAR races. Pupils determine the winner of the race and when opponents pass each other given a speed and distance.

In this systems of equations instructional activity, students solve each system of equations by graphing on a coordinate plane. Students identify the solution to the equations by the intersection of the two graphs. They also observe...

In this systems of equations worksheet, students solve systems of equations using Cramer's Rule. This four-page worksheet contains 16 problems. Answers are provided on the last two pages.

In this systems of equations worksheet, learners use Cramer's Rule to solve a systems of equations worksheet. This two-page worksheet contains 14 problems. Answers are provided on the last page.

In this systems of equations worksheet, students solve equations by substitution. Through substitution, students evaluate equations for both x and y. Answers are given as an ordered pair. This two page worksheet contains 16 problems,...

In this algebra worksheet, students solve systems of equations using elimination or linear combination. There are 24 questions with an answer key.