Students create building and models using scale factors. In this geometry instructional activity, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross...

Students explore careers in space and experience how math and science concepts are applied in the space program through an interactive video and cooperative group activities.

Learners explore the concept of fractals. In this fractals lesson, students use the website to research where fractals occur in nature. Learners research what fractals are and how fractals are used to solve real world problems.

Fifth graders use tan to solve problems involving right-angled triangles. They solve equations of the form tan(8) =a, for a between 180 degrees and 360 degrees. They state the value of tan (8) in special cases.

Second graders, in groups, prepare a list of proposed record ideas for the class book.

Fifth graders describe and demonstrate how trigonometry can be used to find the height of a tall building or tree. They describe and demonstrate how trigonometry can be used to find the height of a high hill, or other high object where...

Pupils explore the long distances and timescales involved in space travel. They track the progress of the New Horizons spacecraft and access the New Horizons website to discover the distance of the spacecraft from the Sun, and then...

Learners determine the size of a nanoparticle. In small groups, they calculate the actual size of a particle shown in a photo, and discuss how they arrived at their answers.

Students describe differences in animal usage of habitats depending upon successional status of site. They also design other experiments to test movement patterns of animals through habitats of differing structure.

Third graders do an Internet search to find out about Galloping Gertie and what caused the bridge to fail.

Pupils participate in a hands-on activity that shows the independence of perimeter and area for simple irregular figures.

Twelfth graders use road maps to calculate the distance between two locations. They estimate the cost for fuel and the miles per gallon. They consider other factors such as geography, road conditions, and traffic that may impact the cost.

Students define density in their own words. In this physics instructional activity, students calculate density using mass and volume. They explain why some objects sink and some float.

This article describes a new approach to teaching children more than just memorizing a formula to find area and hope they don't confuse it with perimeter. This approach involves a project with real life situations....

What are the common errors made when students take measurements and how can they be avoided? A good deal of vocabulary associated with measurement errors is explained. Tips are provided for the student and the teacher in hopes of...

Practice using metric rulers and rulers with inches. Includes helpful feedback when questions are answered incorrectly.

In this week's Afterschool Adventure, children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter...