Students discover the relationship between the sides of a polygon and the number of diagonals that can be drawn from one vertex, the number of triangles that those diagonals form, and the sum of the interior angles of that polygon.

Students determine the mass, volume, and density of two different mineral samples. Students show data and calculations as well as answer questions about the mineral identities.

Fifth graders practice fraction skills by making quilts using paper or cloth for the squares and rectangles. Each square of the quilt is an equivalent fraction which they design. Students can also use this activity to demonstrate how to...

Middle schoolers work together to identify the accuracy of sundials. They track the position of the sun and create a shadow plot. They discover the difference between real time and clock time.

Young scholars develop an understanding of pi and the relationship between the diameter, radius and circumference. After a lecture/demo, students use construction paper and a compass to solve problems using diameter, radius and...

Learners experiment with a variety of materials used for insulation by melting ice cubes.

Students are introduced to the notion of surface area and volume. Students review surface area and volume by finding the area of a two-dimensional shape. They practice using the computer to create different surface area shapes.

Students explore different types of quadrilaterals. Students define the terminology used with quadrilaterals. They create particular quadrilaterals based on specific characteristics of the quadrilaterals using an online tool.

Students study the effects of shielding on the amount of detectable radioactivity from a gamma source. They investigate the shielding of one type of metal, then design their own experiments to answer questions raised during the...

Eighth graders explore three-dimensional objects (prisms, pyramids, cylinders and cones) to draw nets. They use the understanding of drawing nets to find the surface area of pyramids and cylinders.

Fifth graders create a compass, with the help of written instructions and then write six sentences discussing how compasses work and why they are helpful. They discuss the different types of navigational tools and how they are helpful.

Students demonstrate geometric relationships of finding area of rectangles and squares. They apply determine the quantity of paint needed to cover the area by using the concept of quantity.

Students learn the difference between perimeter and area by watching a video and a hands on activity.

Students make either and insect or a spider using materials their teacher provides. They then draw of picture of their organism and defend why it is either a spider or an insect.

Fourth graders find the area and perimeters of squares and rectangles using a calculator to check their multiplication. They use the appropriate formulas to find the area and perimeter of the given geometric shapes.

Learners explore how electronic screens use only three colors to produce the colors that people see on the screen. They make and test a color wheel.

Students practice using a global positioning system. They discuss the use of celestial objects as navigation points and its problems. They list the advantages and disadvantages of GPS as well.

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.

Learners create a model of a column of air and discover one of the reasons why low and high pressure systems exist and why low pressure is often associated with bad weather.

Eighth graders research congressional delegates from state of Texas, create database including delegate profiles, write introductory paragraphs on how census affects Congressional representation, and import information into word...

[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...

This activity is an introduction to measurement, especially precision. Students should know the difference between precision and accuracy in measurement. They will be able to answer the questions: At what temperature does the mood object...

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

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.