Browse by Grade & Topic: Circles
Find Gizmos organized by grade level and topic.See How FREE Gizmos Work
Compare the graph of a circle with its equation. Vary the terms in the equation and explore how the circle is translated and scaled in response.Lesson Info Launch Gizmo
Circumference and Area of Circles
Resize a circle and compare its radius, circumference, and area.Lesson Info Launch Gizmo
As factory belt operator, your job is to move boxes just the right distance on the belt, so they can be stamped for delivery. Your only controls are the radius and rotation of the belt’s...Lesson Info Launch Gizmo
Chords and Arcs
Explore the relationship between a central angle and the arcs it intercepts. Also explore the relationship between chords and their distance from the circle's center.Lesson Info Launch Gizmo
Resize angles inscribed in a circle. Investigate the relationship between inscribed angles and the arcs they intercept.Lesson Info Launch Gizmo
Sorry, we could not find any Free Gizmos to show you for this Grade/Topic!
How Free Gizmos Work
Start teaching with 20-40 Free Gizmos. See the full list.
Access lesson materials for Free Gizmos including teacher guides, lesson plans, and more.
All other Gizmos are limited to a 5 Minute Preview and can only be used for 5 minutes a day.
Free Gizmos change each semester. The new collection will be available Jul 01, 2023.
About STEM Cases
Students assume the role of a scientist trying to solve a real world problem. They use scientific practices to collect and analyze data, and form and test a hypothesis as they solve the problems.
Each STEM Case uses realtime reporting to show live student results.
Introduction to the Heatmap
STEM Cases take between 30-90 minutes for students to complete, depending on the case.
Student progress is automatically saved so that STEM Cases can be completed over multiple sessions.
Multiple grade-appropriate versions, or levels, exist for each STEM Case.
Each STEM Case level has an associated Handbook. These are interactive guides that focus on the science concepts underlying the case.
Check out these quick links.
Find Your Solution
Start playing, exploring and learning today with a free account. Or contact us for a quote or demo.Sign Up For Free Get a Quote