Terms of Use

These Terms of Use ("Terms") are a legal agreement between you and Rectangle, LLC ("Rectangle," "we," "us," or "our") governing your access to and use of the Rectangle learning platform at app.rectangle.education and related websites and services (the "Service"). By creating an account or using the Service, you agree to these Terms. If you do not agree, do not use the Service.

Your use of the Service is also governed by our Privacy Policy, which explains how we handle information, and, when you use Rectangle with students without a separate school or district Data Processing Agreement, our Student Data Terms. The Privacy Policy and Student Data Terms are incorporated into these Terms by reference.

1. Who may use the Service

• Teachers and school staff may use the Service on behalf of their school or district for classroom purposes.
• Students may use the Service only through a school-mediated path — a class code issued by their teacher or a school roster import. Rectangle does not offer open, public student registration.
• Authority to use the Service. If you create or administer a school or district account, or if you sign an order form, Data Processing Agreement, or other agreement with Rectangle on behalf of a school, district, or other organization, you represent that you have authority to bind that organization. If you use Rectangle in a teacher-directed capacity without a separate school or district agreement, you represent that you are authorized by your school or district to use Rectangle with the applicable class or classes, but these Terms do not by themselves make your school or district a contracting party unless you have authority to bind it. If you are a student, your use is subject to your school's authorization and any applicable agreement or terms governing your school's use.

2. Accounts and security

You agree to provide accurate account information and to keep it current. You are responsible for maintaining the confidentiality of your login credentials and for activity that occurs under your account. Notify us promptly at peter@rectangle.education if you believe your account has been compromised.

3. The Service

Rectangle lets teachers create and assign standards-aligned projects, lets students submit and collaborate on work, and lets teachers review, give feedback on, and grade that work, with standards-coverage and reporting tools. Features may change, and some features are optional (see Section 7, AI connectors).

Beta and evolving features. Rectangle may make some or all of the Service available as a beta, pilot, preview, or early-access offering. Beta features may change, be limited, or be discontinued at any time. We may use feedback you provide about beta features to improve the Service, but we will not use student personal information to train AI models.

4. School and teacher responsibilities

Because Rectangle serves K‑12 classrooms, teachers and schools take on specific responsibilities:

• Authorization to use Rectangle with students. When you import a class roster, issue a class code, or otherwise add students, you represent that you are authorized by your school or district to use Rectangle with the applicable class or classes and to provide student information to Rectangle for school-directed educational purposes. You must not import or enter student information unless doing so is permitted by your school's or district's policies. If your school or district requires a signed data privacy agreement before a classroom tool may be used with students, you must not use Rectangle with students until that agreement is in place.
• Managing students. Teachers are responsible for approving enrollments, managing their classes and groups, and using student information only for legitimate educational purposes.
• Appropriate use of student information. You will not use the Service to collect, post, or share student information beyond what the educational purpose requires.

5. Acceptable use

You agree not to:

• access, use, or attempt to access data or accounts you are not authorized to;
• interfere with, disrupt, or probe the Service or its security, or circumvent any access controls or rate limits;
• scrape, crawl, harvest, copy, extract, download, index, mirror, cache, or otherwise collect content or data from the Service, including projects, rubrics, templates, standards mappings, workflows, reports, student information, teacher-created content, or public standards as organized or presented in the Service, except through ordinary use of the Service as intended;
• use bots, crawlers, scrapers, scripts, browser extensions, automated tools, or manual bulk processes to access, copy, monitor, or extract content or data from the Service without Rectangle's prior written permission;
• use the Service or any content from the Service to build, train, evaluate, benchmark, or improve any artificial-intelligence model, machine-learning system, dataset or validation set, search index, knowledge base, educational content repository, or competing product or service;
• reverse engineer, decompile, disassemble, inspect, derive, or attempt to discover the source code, underlying models, system design, prompts, workflows, scoring methods, recommendation logic, or non-public structure of the Service, except to the extent applicable law prohibits this restriction;
• remove, alter, or obscure any proprietary notices, attribution, source identification, or usage restrictions in the Service or its content;
• use the Service to develop or support a product or service that competes with Rectangle;
• upload or share content that is unlawful, infringing, harassing, harmful, or that violates another person's rights or privacy;
• upload malware or attempt to compromise the Service or other users;
• misrepresent your identity, role, or affiliation, or use the Service to impersonate others;
• use the Service in violation of applicable law or these Terms.

We may suspend or terminate access for conduct that violates this Section.

6. User content and ownership

• Ownership. Teachers retain ownership of the original projects, rubrics, and other materials they author. Students (and, as applicable, their schools) retain ownership of the work students submit. Rectangle does not claim ownership of your content.
• License to operate the Service. You grant Rectangle a limited, worldwide, non-exclusive license to host, store, reproduce, display, transmit, and process your content solely as needed to provide, secure, support, and operate the Service, comply with law, and enforce these Terms.
• Student content. For student work and student personal information, Rectangle's rights are limited by the Privacy Policy, the Student Data Terms, and any applicable Data Processing Agreement. Rectangle does not use student content or student personal information for advertising, non-educational profiling, or artificial-intelligence model training.
• Teacher-created content. Teachers retain ownership of original projects, rubrics, and other materials they author. If a teacher chooses to publish a project or make it available for others to adapt or remix, the teacher grants Rectangle and other authorized users a non-exclusive license to view, copy, adapt, remix, display, and use that published project within the Service for educational purposes. Drafts remain private unless and until the teacher chooses to publish them.
• Student work privacy. Student work is shared only within the student's class and project group and with affiliated school staff, as described in the Privacy Policy. Rectangle does not make student work public.
• Responsibility for content. You are responsible for the content you provide and represent that you have the rights needed to provide it and that it does not violate these Terms or any law.

7. Optional AI connectors

The Service's core features do not require AI. Separately, a teacher may choose to connect their account to a third-party AI assistant (such as Claude or ChatGPT) to help draft projects, as described in the Privacy Policy (Section 4.3). If you use an AI connector:

• your use of the third-party assistant is also governed by that provider's own terms and privacy policy;
• you are responsible for what you choose to share with a connected assistant, and you must not include student personal information in prompts or materials you send through a connector;
• the connector's access is limited to your own draft content and public standards, and you can disconnect it at any time.

8. Intellectual property

The Service, including its software, design, and Rectangle trademarks, is owned by Rectangle or its licensors and is protected by intellectual-property laws. Except for the rights expressly granted in these Terms, we grant you no rights in the Service.

Rectangle Content. As between you and Rectangle, Rectangle owns the Service and all Rectangle-created or Rectangle-provided content and materials in the Service, including project templates, sample projects, rubrics, workflows, standards mappings, recommendations, reports, interfaces, designs, compilations, and the selection, coordination, arrangement, and presentation of content in the Service ("Rectangle Content"). Education standards made available through the Service may be sourced from public standards frameworks, but Rectangle's organization, mapping, presentation, and integration of those standards within the Service are Rectangle Content.

Limited use. Subject to these Terms, Rectangle gives you a limited, revocable, non-exclusive, non-transferable right to access and use the Service and Rectangle Content only for your own authorized classroom, school, or district educational purposes within the Service. You may not copy, export, publish, redistribute, sell, license, train on, or create a competing product or dataset from Rectangle Content except as expressly permitted by Rectangle in writing.

9. Third-party services

The Service integrates with third-party services, including Google Sign-In, Google Classroom roster import and grade passback, and optional AI connectors. Your use of those services is governed by their own terms and privacy policies, and we are not responsible for third-party services.

10. Fees

The Service may be offered free of charge or on a paid basis. If we charge fees for any part of the Service, we will present the applicable fees, billing, and refund terms to you before you incur them.

11. Termination

You may stop using the Service and delete your account at any time (see the Privacy Policy, Section 6, for how deletion works). We may suspend or terminate your access if you violate these Terms, if required by law, or to protect the Service or its users. Sections that by their nature should survive termination (including ownership, Rectangle Content, disclaimers, limitation of liability, indemnification, and governing law) will survive.

12. Disclaimers

The Service is provided "as is" and "as available," without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or secure, or that it will meet your requirements. Beta, pilot, and early-access features are provided without any warranty and may be changed or withdrawn at any time. You use the Service at your own discretion and risk.

13. Limitation of liability

To the maximum extent permitted by law, Rectangle will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, or goodwill, arising out of or related to your use of the Service. To the maximum extent permitted by law, Rectangle's total liability arising out of or related to the Service or these Terms will not exceed the greater of (a) the amounts you paid to Rectangle for the Service in the twelve months before the event giving rise to liability or (b) US $100. Where Rectangle has a separate signed agreement (such as a Data Processing Agreement or master services agreement) with a school or district, the liability terms of that agreement govern to the extent they conflict with this Section.

14. Indemnification

To the extent permitted by law, you will defend, indemnify, and hold harmless Rectangle, its affiliates, and its personnel from and against any claims, losses, liabilities, damages, costs, and expenses, including reasonable attorneys' fees, arising from: (a) your content; (b) your unauthorized use of the Service; (c) your violation of these Terms; (d) your violation of another person's rights, including intellectual-property or privacy rights; (e) your import or disclosure of student information without required authorization from your school or district; or (f) your use of the Service in violation of your school's or district's policies. This section does not require a public school or district to indemnify Rectangle where prohibited by applicable law.

15. Governing law and disputes

These Terms are governed by the laws of the State of Washington, USA, without regard to its conflict-of-laws rules. The state and federal courts located in King County, Washington will have exclusive jurisdiction over any dispute arising out of or relating to these Terms or the Service, except where applicable law requires otherwise.

16. Changes to these Terms

We may update these Terms from time to time. When we do, we will change the "Effective date" above and post the new version. Material changes will be given additional notice as appropriate. Your continued use of the Service after changes take effect means you accept the updated Terms.

17. Contact us