This short video and interactive assessment activity is designed to teach fourth graders about arranging and ordering capacities (english units).

What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of metric symbols.

Students learn about material properties, and that engineers must consider many different materials properties when designing. This activity focuses on strength-to-weight ratios and how sometimes the strongest material is not always the best material.

Students will be using a hands-on approach to learning about length, capacity and weight.

Students conduct a hands-on investigation to determine how matter, changing state, effects the property of weight. Students will collect data and graph their results. Resources include step by step instructions, a data worksheet, videos of the lesson in action, and examples of student work.

This animation demonstrates how body mass index affects the degree of obesity in an average height human male. [1:21]

Students make a skydiver and parachute contraption to demonstrate how drag caused by air resistance slows the descent of skydivers as they travel back to Earth. Gravity pulls the skydiver toward the Earth, while the air trapped by the parachute provides an upward resisting force (drag) on the skydiver.

Paul Andersen explains how an object with mass placed in a gravitational field experiences a gravitational force. [5:01]

In this math activity, students conduct a strength test using modeling clay, creating their own stress vs. strain graphs, which they compare to typical steel and concrete graphs. They learn the difference between brittle and ductile materials and how understanding the strength of materials, especially steel and concrete, is important for engineers who design bridges and structures.

This short video and interactive assessment activity is designed to teach fourth graders about calculating total weight from scales (metric units).

This short video and interactive assessment activity is designed to give fourth graders an overview of capacity (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about finding the amount of water with illustrations and calculations (metric units).

Students learn how the aerodynamics and rolling resistance of a car affect its energy efficiency through designing and constructing model cars out of simple materials. As the little cars are raced down a tilted track (powered by gravity) and propelled off a ramp, students come to understand the need to maximize the energy efficiency of their cars. The most energy-efficient cars roll down the track the fastest and the most aerodynamic cars jump the farthest. Students also work with variables and plot how a car's speed changes with the track angle.

This short video and interactive assessment activity is designed to teach fourth graders about comparing lengths in centimeters using a ruler.

This short video and interactive assessment activity is designed to teach fourth graders about challenge problems - four operations with single units (metric capacities) - word problems.

This site examines the specific difference between mass and weight in addition to length, temperature, and time.

This short video and interactive assessment activity is designed to teach fourth graders about choosing the correct unit with liters or milliliters.

This short video and interactive assessment activity is designed to teach fourth graders about combining units using addition and subtraction (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about comparing capacities in compound units using words (english units).

This short video and interactive assessment activity is designed to teach fourth graders about compound unit multiplication - word problems.