Shodor Education Foundation
Shodor Interactivate: Triangle Explorer
This applet allows users to study the nature of triangles and their area. It draws random triangles on a Cartesian coordinate system. The user can determine the area of the triangle using his or her preferred method. After the calculated...
Oswego City School District
Regents Exam Prep Center: Regression Analysis
A collection of lesson ideas, a practice activity, and teacher resources for exploring regression analysis.
Better Lesson
Better Lesson: Rewriting Formulas
For this lesson, young scholars explore "real-life" resources that make use of literal equations (rewriting known formulas) to help make people's lives easier. Students will use Excel to design formulas that find a specific value like...
Discovering Egypt
Discovering Egypt: Egyptian Mathematics
A brief explanation of the numbering system of the ancient Egyptians, with great drawings and sample problems. Use this resource to introduce yourself to the symbols ancient Egyptians used in mathematics. There are some activities to...
Better Lesson
Better Lesson: What Angles Are on a Bat House?
Third graders are preparing to build bat houses. They have calculated surface area, identified nail placement, and will now collect data on angle types in this real-world activity.
PBS
Pbs: The Lowdown: Percents Combined: Proportional Relationships With Multistep Ratio and Percent Problems
Learn how to calculate sale price when combining two "percent-off" discounts in this video from KQED. In the accompanying classroom activity, students develop and share a variety of strategies, including modeling with a 10 x 10 grid to...
PBS
Pbs: The Lowdown: Percents Defined
Learn how to calculate percent as a rate per 100 in this video from KQED. In the accompanying classroom activity, students model percent with a 10 x 10 grid. After watching the video, they create a design or picture on a 10 x 10 grid,...
Alabama Learning Exchange
Alex: Pass It Down
This lesson, Pass It Down, integrates science and math into two consecutive hands-on genetics activities that should be embedded within an existing genetics unit suitable for biology students. The results of each activity will be...
TeachEngineering
Teach Engineering: Puttin' It All Together
On the topic of energy related to motion, this summary lesson is intended to tie together the concepts of work, power, collisions, momentum and drag. A hands-on activity demonstrates this idea and reinforces learners' math skills in...