Pro upgrade

18,000+ lessons. Every one unlocked.

Skip per-lesson pricing. Pro unlocks every interactive lesson on Best School Tools across every subject and grade in one subscription.

Get Pro $29.99 / month · cancel any time
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
Subjects
19
Grades
Grade 9
AI tokens
1M / mo

Lesson Library

Browse interactive lessons across every grade and subject.

Buy 2, get 1 free. Auto-applied at checkout.

2,569–2,592 of 18,223
Interactive

Collisions in one dimension - Calculating Outcomes of Collisions

Physics Grade 9
$10.00
Interactive

Collisions in one dimension - Elastic vs Inelastic Collisions

Physics Grade 9
$10.00
Interactive

Collisions in one dimension - Real-world Examples and Problems

Physics Grade 9
$10.00
Interactive

Collisions in one dimension - Types of Collisions

Physics Grade 9
$10.00
Interactive

Collision Theory - Activation Energy Explained

Chemistry Grade 9
$10.00
Interactive

Collision Theory - Effective Collisions and Reaction Probability

Chemistry Grade 9
$10.00
Interactive

Collision Theory - Fundamental Principles

Chemistry Grade 9
$10.00
Interactive

Collision Theory - Implications for Reaction Mechanisms

Chemistry Grade 9
$10.00
Interactive

Collision Theory - Molecular Orientation in Reactions

Chemistry Grade 9
$10.00
Interactive

Collision Theory - Orientation and Collision Success

Chemistry Grade 9
$10.00
Interactive

Colombia - The Influence of Evangelical Groups

Religious Studies Grade 9
$10.00
Interactive

Colonial Administration - Economic Exploitation Techniques

Geography Grade 9
$10.00
Interactive

Colonial Administration - Governance Models and Their Impact

Geography Grade 9
$10.00
Interactive

Colonial Administration - Structures of Power

Geography Grade 9
$10.00
Interactive

Colonial Administration - The Role of Local Collaborators

Geography Grade 9
$10.00
Interactive

Colonial Cultural Exchanges - Art and Architecture

History Grade 9
$10.00
Interactive

Colonial Cultural Exchanges - Cuisine and Food Practices

History Grade 9
$10.00
Interactive

Colonial Cultural Exchanges - Language and Literature

History Grade 9
$10.00
Interactive

Colonial Cultural Exchanges - The Exchange of Ideas

History Grade 9
$10.00
Interactive

Colonial Expansion - Impact on Indigenous Populations

History Grade 9
$10.00
Interactive

Colonial Expansion - Settler Colonies vs. Exploitation

History Grade 9
$10.00
Interactive

Colonial Expansion - The Age of Exploration

History Grade 9
$10.00
Interactive

Colonial Expansion - Trade Routes and Resources

History Grade 9
$10.00
Interactive

Colonial Impact on Indigenous Beliefs - Missionary Activities and Conversion

Religious Studies Grade 9
$10.00