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My class is hooked, my prep time is halved, and my students are so engaged they don’t want lessons to end.
Sarah Patel Grade 9 teacher · Austin, TX
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19
Grades
Grade 9
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Lesson Library

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12,025–12,048 of 18,223
Interactive

Opportunity Cost - Short-Term vs. Long-Term Decisions

Economics Grade 9
$10.00
Interactive

Opportunity cost - Understanding Trade-offs

Economics Grade 9
$10.00
Interactive

Opportunity Cost - What You Give Up

Economics Grade 9
$10.00
Interactive

Oprah Winfrey - Empowering through Influence

Business Studies Grade 9
$10.00
Interactive

Optical Instruments - Cameras and Image Formation

Physics Grade 9
$10.00
Interactive

Optical Instruments - Microscopes and Their Functionality

Physics Grade 9
$10.00
Interactive

Optical instruments - Role of Optics in Cameras

Physics Grade 9
$10.00
Interactive

Optical instruments - Simple and Compound Microscopes

Physics Grade 9
$10.00
Interactive

Optical instruments - Telescopes: Types and Functions

Physics Grade 9
$10.00
Interactive

Optical Instruments - Telescopes: Types and Uses

Physics Grade 9
$10.00
Interactive

Optical instruments - The Human Eye

Physics Grade 9
$10.00
Interactive

Optical Instruments - The Human Eye and Its Optics

Physics Grade 9
$10.00
Interactive

Oral Traditions and Myths - Creation Myths Across Indigenous Cultures

Religious Studies Grade 9
$10.00
Interactive

Oral Traditions and Myths - Legends of Heroic Figures

Religious Studies Grade 9
$10.00
Interactive

Oral Traditions and Myths - Storytelling as a Cultural Practice

Religious Studies Grade 9
$10.00
Interactive

Oral Traditions and Myths - The Importance of Oral History

Religious Studies Grade 9
$10.00
Interactive

Orbital Mechanics - Calculating Orbits: Circular vs. Elliptical

Physics Grade 9
$10.00
Interactive

Orbital Mechanics - Escape Velocity and Orbital Insertions

Physics Grade 9
$10.00
Interactive

Orbital Mechanics - Kepler's Laws of Planetary Motion

Physics Grade 9
$10.00
Interactive

Orbital Mechanics - The Role of Gravity in Satellites

Physics Grade 9
$10.00
Interactive

Orbits and Ellipses - Calculating Orbital Periods

Physics Grade 9
$10.00
Interactive

Orbits and Ellipses - Kepler's First Law Explained

Physics Grade 9
$10.00
Interactive

Orbits and Ellipses - The Influence of Gravity on Orbits

Physics Grade 9
$10.00
Interactive

Orbits and Ellipses - The Shape of Planetary Orbits

Physics Grade 9
$10.00