Make
Anything|
Intuitive

It's time to lock in. Learn what you need to, when you need to, and how you need to — It's Completely FREE!

20+

AP® Courses

40+

Courses

100%

Free Forever

Practice Questions

80+

Volunteers

2,000+

Students Impacted

Browse Courses

Math
Science
History
World Languages
English
Arts
Economics
Computer Science

Lessons that are Built Different Built Different

We offer a wide range of courses designed to help you learn more effectively and efficiently

Hello, how are you?

Using content from

NOVA'S RESPONSE

Hello! Welcome to the demo of Nova. You have 6 options of potential questions to choose from. Sign Up for Stellar to ask more questions. How can I help you today?

Assistant

Meet your New Visual AI Assistant

Meet Nova, your visual, intuitive, step-by-step tutor that makes every subject click

Infinite Practice Questions with AI

Access limitless, AI-generated questions that provide continuous practice opportunities, ensuring you’re prepared and confident in every subject.

Multiple Choice Question

Choose the best option:

A
B
C
D
1
AP® Physics C: Electricity & Magnetism MCQ

A
B
C
D

Unlimited AP® Style Full-Length Practice Tests

Prepare thoroughly for all AP® subjects with a variety of mock exams designed to simulate real test conditions

Limitless AP® Style FRQ Practice

Master free-response questions (FRQs) with expertly crafted materials designed to mimic AP® exam formats

1
AP® US History Stimulus SAQ

“In the late 19th and early 20th centuries, American foreign policy was primarily defined by the pursuit of expansionism, driven by a belief in American exceptionalism and a duty to spread democracy and capitalism around the globe. This era saw the United States engage in several conflicts and interventions, including the Spanish-American War of 1898, which not only resulted in territorial acquisitions like Puerto Rico and the Philippines but also marked a significant shift in the nation's identity as a global power. This aggressive foreign policy was justified by arguments of moral obligation, presenting the annexation of overseas territories as a benevolent act aimed at uplifting less fortunate nations, thus embodying a humanitarian facade coupled with economic interests.”

Source: John A. Thompson, historian, “The United States and the Age of Imperialism”, 2003

“Contrarily, the rise of American imperialism during this period can be seen as a hypocritical endeavor, masking underlying motives of economic exploitation and nationalistic fervor under the guise of moral superiority. Critics of this foreign policy argued that instead of liberating oppressed peoples, the United States sought to reproduce its own dominance in foreign lands for the benefit of American corporations and investors. The consequences of such policies were often detrimental, leading to unrest and resistance in the territories affected, as exemplified by the Philippine-American War, where the rhetoric of liberation was starkly at odds with the reality of subjugation and violence. This imperialistic approach not only contradicted the founding principles of liberty and self-determination but also illuminated the darker side of America's global ambitions, showing that the nation's self-image was often built on the subjugation of others.”

Source: David S. Mason, historian, “Imperialism and American Identity”, 2010

Using the excerpts, respond to parts a, b, and c.

a. Briefly describe one major difference between Thompson’s and Mason’s interpretations of American foreign policy in the late 19th and early 20th centuries.

b. Briefly explain how one historical event or development from 1865 to 1917 not directly mentioned in the excerpts could be used to support Thompson’s interpretation.

c. Briefly explain how one historical event or development from 1865 to 1917 not directly mentioned in the excerpts could be used to support Mason’s interpretation.

Login to Stellar to Auto-Score this FRQ

Math Graphing Exercise

Please plot the function, 3y = 9x + 12 on the coordinate plane. You can plot the function by simply clicking two points that are on it.

xy

Practice STEM with Interactive Exercises

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Practice Humanities with Interactive Exercises

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Grammar Labeling Exercise

For the sentence below, please highlight the nouns yellow, the action verbs green, the prepositions blue, the conjunctions pink, and any adjective or participle purple.

Interactive Coding Exercise

Write Python code to find the Nth fibbonacci number.

Loading editor...

Learn to Code Intuitively

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Practice Step-By-Step

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Economics Guided Exercise

The price of Coke, the substitute of Pepsi has increased. How does this change in consumer preference affect the price and quantity of Pepsi? Please move the supply and/or demand curves to demonstrate this change and complete the sentence below.

After the increase of Coke's price, demand for Pepsi , and supply for Pepsi . The price of Pepsi and the quantity of Pepsi .

DSPQ

History Stimulus-Based Exercise

The great rule of conduct for us, in regard to foreign nations, is in extending our commercial relations, to have with them as little political connection as possible. So far as we have already formed engagements, let them be fulfilled with perfect good faith. Here let us stop.

- George Washington's Farewell Address, 1796

Choose the best option:

A
B
C
D

Prepare for Tests with Stimulus-Based Questions

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Learn How to Write Characters Intuitively

Engage with interactive tasks like labeling, problem-solving, and simulations that make complex concepts easier to grasp and retain.

Foreign Language Tracing Exercise

Trace the Chinese Character below.

AMC 10 Question

Choose the best option:

A
B
C
D
E

Grind for Competitions

Are you preparing for a math, CS, or physics competition, such as the AMCs, AIME, F=ma, or USACO? Use Stellar to filter through thousands of problems, practice them infinitely, track your progress and goals, and gamify the study process.

Keep Track of Progress with Advanced Insights

Gain insights into your progress and strengths with AI-driven analytics, allowing you to track and optimize your learning journey.

Robust Personalization System

Experience tailored learning that dynamically adapts to your strengths and areas for growth, offering you a unique and focused educational path. For example, 80% mastery in Calculus AB will give you ~70% mastery of Algebra 1 as related lessons and skills are applied. Stellar uses your mastery in one subject to boost your progress speed in other related subjects.

All in One Unified Platform

There are hundreds of study apps, each serving a different specific purpose. Why bother using them if Stellar can meet all your needs?

Khan Academy
Fiveable
IXL
Brilliant
Duolingo
Knowt
Quizlet
ChatGPT
Gemini
Schoology
Google Classroom
Moodle
Canvas
Google Drive
Google Calendar
Notion
Todoist
Nebulus
Add-On

It's About Time to Get Organized for School

Meet Nebulus. Nebulus is the ultimate organizational tool for managing your academic life and coursework. It essentially combines EVERYTHING you need for school in ONE app. It's completely free, as always.

Go Beyond Courses

Is something you want to learn that isn't available in one of courses? You can simply create a new Note or Flashcard Deck and add the information you would like to learn, and Stellar will automatically create practice sessions with infinite questions.

Seamless Gamification

Engage in a gamified learning experience with badges, achievements, and rewards that make educational progress enjoyable and motivating.

Efficiently Practice with Flashcards

Utilize personalized flashcards powered by AI to reinforce your knowledge and master each topic through repetition and memory techniques.

Explore with Projects, Simulators, and Labs

Participate in project-based learning that encourages critical thinking and real-world application of skills across various subjects.

Core Team ✨

Nicholas Wang Nicholas Wang

Co-Founder and CEO

BASIS Independent Silicon Valley '27, CA

Aaryan Parikh Aaryan Parikh

Co-Founder, Chairman, and CPO

Archbishop Mitty High School '27, CA

Neel Parpia Neel Parpia

Co-Founder and CTO

Archbishop Mitty High School '27, CA

Amaar Chughtai Amaar Chughtai

Co-Founder and Head of Engineering

Valley Christian High School '27, CA

Alex Chen Alex Chen

SVP of Academics and Head of Economics Curriculum

BASIS Independent Silicon Valley '26, CA

Adi Siddabathuni Adi Siddabathuni

VP of Marketing

Prospect High School '27, CA

Warren Li Warren Li

VP of Backend Development

BASIS Independent Silicon Valley '27, CA

Directors 🔥

Nolan Thelen Nolan Thelen

Director of Electives and English Curriculum & Co-Director of Marketing

Silverton High School '28, OR

Benjamin Zhang Benjamin Zhang

Director of Competitive Mathematics Curriculum

Lynbrook High School '27, CA

Arthur Peng Arthur Peng

Director of Foundational Mathematics Curriculum

Lynbrook High School '27, CA

Eric Li Eric Li

Director of Biology and Social Studies Curriculum

BASIS Independent Silicon Valley '27, CA

Rachel Kwan Rachel Kwan

Director of Graphic Design

BASIS Independent Silicon Valley '27, CA

Liam Tran Liam Tran

Director of Physics and Chemistry Curriculum

BASIS Independent Silicon Valley '27, CA

Aryan Narendra Aryan Narendra

Director of Computer Science Curriculum

BASIS Independent Silicon Valley '26, CA

Alina Zhu Alina Zhu

Director of Product Testing

Lassiter High School '26, GA

Yuvraj Singh Yuvraj Singh

Co-Director of Marketing

Seaquam Secondary School '26, BC, Canada

Krish Parashar Krish Parashar

Co-Director of Marketing

Liberty High School, '27, WA

Derek Li Derek Li

Director of Development for Competitive Mathematics

Monta Vista High School, '28, CA

Volunteers & Subject Experts 🚀

Shreyas Suman Shreyas Suman

Computer Science Curriculum Manager

The King's Academy '26, CA

Ishaan Mittal Ishaan Mittal

Competitive Mathematics Curriculum Manager

Lynbrook High School '28, CA

Ivy Zan Ivy Zan

Competitive Mathematics Curriculum Manager

Lynbrook High School '27, CA

Shannon Zhang Shannon Zhang

Competitive Mathematics Curriculum Manager

Lynbrook High School '27, CA

Emily Shen Emily Shen

English Curriculum Manager

Castilleja High School '27, CA

Vedsai Patil Vedsai Patil

Debate Curriculum Manager & Marketing

Bellarmine College Preparatory '27, CA

Garrett Guo Garrett Guo

Physics Curriculum Contributor and Marketing

BASIS Independent Silicon Valley '27, CA

Joyce Zhang Joyce Zhang

Graphic Design

The Harker School '27, CA

Caelin Hu Caelin Hu

Graphic Design

Valley Christian High School '27, CA

Amber Lai Amber Lai

Product Testing & Graphic Design

Irvington High School '26, NY

Aarush Kasliwal Aarush Kasliwal

Product Testing

Juanita High School '28, WA

Eshaan Emani Eshaan Emani

Cybersecurity

Skyline High School, WA

Aditya Singh Aditya Singh

Senior Brand Ambassador

Woodbridge High School '26, CA

Valerie Chu Valerie Chu

Brand Ambassador

Stuyvesant High School '26, NY

Kevin Ma Kevin Ma

Developer

Archbishop Mitty High School '27, CA

Leshui Feng Leshui Feng

Developer

Homestead High School '27, CA

John St. Clair John St. Clair

App Developer

Bend Senior High School '27, OR

Stefan Hsueh Stefan Hsueh

Physics Curriculum Contributor

Monta Vista High School '27, CA

Larry Zhao Larry Zhao

Biology Curriculum Contributor

BASIS Independent Silicon Valley '28, CA

Rishab Ghosh Rishab Ghosh

Computer Science Curriculum Contributor

Albany High School '26, CA

Kenta Tonari Kenta Tonari

Computer Science Curriculum Contributor

Leigh High School '26, CA

Rohan Upadrasta Rohan Upadrasta

Mathematics Curriculum Contributor

Valley Christian High School '27, CA

Mahika Shirshyad Mahika Shirshyad

Chemistry Curriculum Contributor

Leland High School '27, CA

Pranava Shetty Pranava Shetty

Economics Curriculum Contributor

BASIS Independent Silicon Valley '25, CA

Kabir Raghuvanshi Kabir Raghuvanshi

Social Studies Curriculum Contributor

Khan Lab School '26, CA

Hudson Fishleder Hudson Fishleder

History Curriculum Contributor

Vintage High School '26, CA

Dhruv Sharma Dhruv Sharma

History Curriculum Contributor

BASIS Independent Silicon Valley '26, CA

Abhi Kandi Abhi Kandi

History Curriculum Contributor

Denmark High School '25, GA

Kavish Dangui Kavish Dangui

Math Curriculum Contributor

Cupertino High School '26, CA

Ari Zhang Ari Zhang

Math Curriculum Contributor

Lynbrook High School '27, CA

Nandan Surabhi Nandan Surabhi

Competitive Math Curriculum Contributor

John F. Kennedy High School '28, CA

Ellen Hao Ellen Hao

Chemistry Curriculum Contributor

BASIS Independent Silicon Valley '26, CA

Philip Pagonis Philip Pagonis

English Curriculum Contributor

Francis Lewis High School '26, NY

Aiden Rui Aiden Rui

Debate Curriculum Contributor

Bellarmine College Preparatory '28, CA

Volunteers From Around the Nation

You can join us too! Are you passionate about a specific subject or discipline, or do you have a strong interest in web development, graphic design, marketing, or curriculum writing? We are looking for enthusiastic high school students to join our nonprofit team and contribute to our exciting product. We welcome all talented individuals from anywhere who are currently in high school and eager to make an impact. We offer PVSA-certified volunteer hours as well due to our 501(c)(3) nonprofit status.

Ready to Start?