Second graders use a Sleep Diary to record their sleeping hours and their energy levels each morning and discuss whether they see a connection between the number of hours they sleep each night and their energy levels.

High schoolers discuss different ways to spread infectious diseases. In this bioterrorism lesson, students model the rate of smoke emission using CalRoad software. They analyze the effects of airborne release of...

Students explore geometric shapes. In this math lesson, students identify geometric and non-geometric shapes using the computer. Students research geometric shapes in art and architecture.

Students explore regular geometric shapes. In this shapes lesson, students investigate geometric shapes in the world around them. Students differentiate between regular and irregular shapes.

Students will estimate various dimensions of objects located in a classroom. After estimations are completed, students will measure objects using appropriate measuring techniques for preciseness.

Given investigation quantitative data, students will determine its degree of precision and/or accuracy and causes for uncertainties in measured data.

Measurements are very important for scientists. It is especially important that the measurements be accurate. Think about how important accuracy is when you want to know if you are taller than a friend of yours, every inch counts. In...

[Free Registration/Login may be required to access all resource tools.] In the following online lesson students will learn to distinguish between accuracy and precision in measurements and to also calculate the percent error of a...

Students learn the metric units engineers use to measure mass, distance (or length) and volume. They make estimations using these units and compare their guesses with actual values. To introduce the concepts, the teacher needs access to...

By the end of this section, you will be able to do the following: Determine the appropriate number of significant figures in both addition and subtraction, as well as multiplication and division calculations and Calculate the percent...

This interactive site helps students determine the appropriate number of significant figures in both addition and subtraction, as well as multiplication and division calculations. They also calculate the percent uncertainty of a...

This tutorial explains how to measure mass accurately on different types of measuring instruments.

This is a review lesson on the concept of precision vs. accuracy in the context of scientific measurement, intended to be used near the beginning of a Physics course. Students practice measuring and reading scales accurately and...

This lesson will explain the difference between accuracy and precision. It is 11 of 11 in the series titled "Accuracy and Precision."

A really nice distinction here in this longish piece from the Bellevue Community College. It's not just accuracy vs. precision, but also error vs. uncertainty. This is a necessary additional consideration for any paper on the topic.

An interactive tutorial showing how scientists should report measurements from their experiments. Shows the basics in a way that anyone can understand.

[Free Registration/Login Required] In this interactive you will measure the box against the three different rulers to best determine the height of the box with each ruler. You will need a sign-in to access this media, but it will be well...

As part of a larger site called "Getting started in Chemistry," this site examines various topics related to measurements and the error and uncertainty that accompanies the methods of measurements.

This task could form part of a classroom activity where students are encouraged to find as many different ways as possible to make different fractions such as 1/12 and then share their methods. While measuring cups would be helpful to...

When we measure things, most people are only worried about how accurate, or how close to the actual value, they are. Looking at the process of measurement more carefully, you will see that there is another important consideration:...

Investigate how precise measurments and effective communication skills are needed when engineering and digging a tunnel.

This lesson will explain how to determine the precision of a measurement using laboratory glassware and report it accurately. It is 2 of 2 in the series titled "Reporting Volume Measurements."

[Free Registration/Login may be required to access all resource tools.] Accuracy and precision of measurements.

The difference between accuracy and precision is explained, with a precautionary note about being aware of possible bias in the measuring instrument.