# 9th Grade

The best videos, books, apps, and other learning resources our members recommend:

### 5 Minute English

English as a Second Language (ESL) 1st - College | Online resourceLearning English as a second language (ESL) is not always easy, but it should be fun. 5 Minute English has been designed to give you short and easy explanations and exercises. You can also find...

### 6 Powerful Learning Strategies You MUST Share with Students

Thinking & Learning Strategies 4th - College | Online resourceStudying CAN be taught. Learn how retrieval practice, interleaving, elaboration, and other research-based study strategies can help your students learn better.

### 800 Free eBooks for iPad, Kindle & Other Devices

Literature 6th - College | ebook/KindleDownload 800 free eBooks to your Kindle, iPad/iPhone, computer, smart phone or ereader. Collection includes great works of fiction, non-fiction and poetry, including works by Asimov, Jane Austen,...

### 900 Free Audio Books: Download Great Books for Free

Literature 7th - College | ebook/KindleDownload hundreds of free audio books, mostly classics, to your MP3 player or computer. Below, you'll find great works of fiction, poetry and non-fiction, by such authors as Twain, Tolstoy,...

### A beginner's guide to 20th century art

7th - College | Online classArt & Context: Monet’s Cliff Walk at Pourville & Malevich’s Suprematist Composition: White on White A conversation with Sal Khan, Steven Zucker & Beth Harris

### A beginner's guide to contemporary art

Contemporary Art 7th - College | Online classAll content in “A beginner’s guide to contemporary art”

### A beginner's guide to medieval Europe

Middle Ages / Medieval Period 9th - College | Online classThe Middle Ages lasted 1000 years. Learn how manuscripts were made, how medieval calendars worked, and how Christ’s life was represented.

### Acids and Bases

9th - College | Online classIn this section we will be talking about the basics of acids and bases and how acid-base chemistry is related to chemical equilibrium. We will cover acid and base definitions, pH, acid-base...

### Advanced Writing

Writing & Composition 9th - High School | Online classCourse 3: Advanced Writing This is the third course in the Academic English: Writing specialization. By raising your level of academic writing, this course helps prepare you for college-level work....

### Africa: 1100-1980 C.E.

9th - High School | Online classHuman life, which is understood to have begun in Africa, developed over millions of years and radiated beyond the continent of Africa. The earliest African art dates to 77,000 years ago. While...

### Africa - Geography Maps

African Geography 4th - 9th | Online resourceAfrica. Hear the names of countries and capitals pronounced. Maps of Africa and information on African countries, capitals, geography, history, culture, and more. This site also offers a $36 yearly...

### Algebra 1 Aligned to CCSS-M Standards

Algebra 9th - High School | Online resourceThis collection contains resources for a course in Algebra 1. The resources are organized by Common Core State Standards for Mathematics and reflect a ninth grade course. Both teacher facing and...

### Algebra 1 Content Inventory

Algebra 8th - High School | Online resourceVirtual Nerd’s patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. In this non-linear...

### Algebra 1 Course

Algebra 8th - 9th | Online resourceAlgebra 1 covers expressions, systems of equations, functions, real numbers, inequalities, exponents, polynomials, radical and rational expressions. The material is text and video lectures, but no...

### Algebra 2 Content Inventory

Algebra 9th - High School | Online resourceVirtual Nerd’s patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. In this non-linear...

### Algebra 2 Course

Algebra 9th - High School | Online resourceAlgebra 2 covers linear equations, inequalities, graphs, matrices, polynomials and radical expressions, quadratic equations, functions, exponential and logarithmic expressions, sequences and...

### Algebra basics

Algebra 6th - High School | Online classWant a personalized algebra basics experience? Missions recommend what to learn next, help you remember what you’ve learned by mixing skills, and save your progress.

### Algebra Help

Algebra 4th - 9th | Online resourceTaking Algebra I or Algebra II? Then you found the right place to get help. We have more than forty free, text-based algebra lessons listed on the left. They’re not organized by subject matter or...

### Algebraic expressions

5th - 9th | Online classWait, why are we using letters in math? How can an ‘x’ represent a number? What number is it? I must figure this out!!! Yes, you must. This tutorial is great if you’re just beginning to delve into...

### Algebra II

Algebra 9th - College | Online classYour studies in algebra 1 have built a solid foundation from which you can explore linear equations, inequalities, and functions. In algebra 2 we build upon that foundation and not only extend our...

### Algebra & Trigonometry

Algebra 6th - High School | Android AppAlgebra and Trigonometry provides a comprehensive and multi-layered exploration of algebraic principles. The text is suitable for a typical introductory algebra course, and wasdeveloped to be used...

### Algorithmic Thinking (Part 2)

Algorithms 7th - College | Online classExperienced Computer Scientists analyze and solve computational problems at a level of abstraction that is beyond that of any particular programming language. This two-part class is designed to...

### All about quadratic equations

Quadratic Equations 6th - 9th | Online video/YouTubeAll about quadratic equations: factoring by grouping, completing the square, using the quadratic formula, using the discriminant, and solving some fancy quadratics.

### All About the Supreme Court

Judicial System 6th - High School | Online resourceThis is a collection of resources that support teaching and learning about the US Supreme Court. Craig Benzine talks about what happens when a case makes it to the Supreme Court of the United...

### Amazing Cells

Cell Biology 8th - College | Online resourceLearn about the structure of cells, their size and function and how they communicate. This free resource from the University of Utah provides videos and interactives to help learners understand...