This short video and interactive assessment activity is designed to teach fourth graders about estimating measure by image: centimeters or meters?.

This short video and interactive assessment activity is designed to teach fourth graders about estimating measure by description - multiple choice.

Identify health issues facing Americans today and evaluate one's own food consumption. Examine the USDA food pyramid and the impact it may have had on weight gain and explore the impact of body image on young people.

Kids have many ideas about how and why things fall based on their daily life experiences. However, many of these ideas are misconstrued. Learn from this video how to clear up these misunderstandings about gravity and help your students understand concepts of mass, weight, inertia, and air resistance. [9:51]

If you like tackling formulas, then this math challenge is for you. See if you can calculate Helix's BMI (body mass index) and find out if his health is at risk. A one page NCTM Math Challenges for Families activity that engages learners in real-world skills.

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

Use this activity to explore forces acting on objects, practice graphing experimental data, and introduce the algebra concepts of slope and intercept of a line. A wooden 2 x 4 beam is set on top of two scales. Students learn how to conduct an experiment by applying loads at different locations along the beam, recording the exact position of the applied load and the reaction forces measured by the scales at each end of the beam. In addition, students analyze the experiment data with the use of a chart and a table, and model/graph linear equations to describe relationships between independent and dependent variables.

Students take a closer look at cars and learn about some characteristics that affect their energy efficiency, including rolling resistance and the aerodynamics of shape and size. They come to see how vehicles are one example of a product in which engineers are making changes and improvements to gain greater efficiency and thus require less energy to operate.

This short video and interactive assessment activity is designed to teach fourth graders about using the four operations with weights (english units).

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

This short video and interactive assessment activity is designed to teach fourth graders about greater or less than comparisons of length (english units).

Students learn about weight by building a spring scale and observing how it responds to objects with different masses.

Students learn about weight and drag forces by making paper helicopters and measuring how adding more weight affects the time it takes for the helicopters to fall to the ground.

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

Students learn that it is incorrect to believe that heavier objects fall faster than lighter objects. By close observation of falling objects, they see that it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.

Students learn more about forces by examining the force of gravitational attraction. They observe how objects fall and measure the force of gravitational attraction upon objects.

The Center for Mathematics and Science Education at the University of North Carolina at Chapel Hill provides an interesting and easy-to-use dictionary of the history and meaning of many measurement terms. Metric, International, and English Customary Systems are included; but there are also explanations of Apgar scoring, hat sizes, radiocarbon year conversion, and many other tables and scales.

Students measure and analyze forces that act on vehicles pulling heavy objects while moving at a constant speed on a frictional surface. They study how the cars interact with their environments through forces, and discover which parameters in the design of the cars and environments could be altered to improve vehicles' pulling power. This LEGO® MINDSTORMS® based activity is geared towards, but not limited to, physics students.

Hunkin's Experiments is a group of simple cartoon illustrations of scientific principles. Some would work well in the classroom, but others have little value beyond entertaining students. All of the projects are easy to do. This pair of cartoons explains how to balance chairs on brooms and potatos on forks!

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