PRIVACY POLICY

Last updated: September 2026

1. Who we are

Mathematics for Change is an educational platform operated by M4C Education OÜ, a company registered in Estonia under registry code 17486122.

For the purposes of the General Data Protection Regulation (GDPR), M4C Education OÜ acts as the data controller for personal data collected directly through the Mathematics for Change website and teacher services.

Where M4C Education OÜ processes pseudonymised student assessment data on behalf of a school or educational institution, the school acts as the Data Controller and M4C Education OÜ acts as the Data Processor, as further described in the applicable Data Processing Agreement. M4C Education OÜ does not collect students’ names, email addresses, or other direct identifiers, and does not hold the information necessary to independently identify individual students from teacher-managed student codes.

Founder & Educational Lead: Elena Martelli
Contact: info@mathematicsforchange.com
Registered office: Sepapaja tn 6, 15551 Tallinn, Estonia
Registry code: 17486122

2. What data we collect

We may collect and process:

Information submitted voluntarily through contact, registration, or teacher membership forms, such as name, email address, school affiliation, and messages;
Technical website usage information, such as pages visited, browser type, device information, IP address, and approximate usage statistics, where collected through Wix or associated website technologies;
Teacher account and platform usage information necessary to provide access to Mathematics for Change resources and services;
Pseudonymised student assessment responses, scores, and automated feedback generated during lesson activities, associated only with teacher-managed student codes.

Student data

Students are not required to create personal accounts or provide their name, email address, or other direct identifiers in order to participate in Mathematics for Change activities.

Students access lesson assessments through links and student codes provided by their teacher.

Mathematics for Change does not require or collect students’ names, email addresses, or other direct identifiers alongside these codes.

Student codes are used only to associate assessment activity with the relevant lesson and teacher environment. M4C Education OÜ does not hold the information necessary to independently identify individual students from these codes.

Teachers or schools may maintain a separate record linking a student code to an individual student. Any such record remains under the control of the teacher or school and is not held by M4C Education OÜ.

Students and teachers should avoid entering names or other unnecessary personal or sensitive information in open-text assessment responses.

3. How we use your data

We process personal data only for the purposes described below:

To provide access to teacher resources, lesson materials, and assessment tools;
To generate automated educational feedback for lesson assessments;
To provide service-related communications, account administration, onboarding, and support;
To send marketing or promotional communications where consent is required and has been provided;
To operate, secure, maintain, and improve the website and educational platform.

We do not sell, rent, or share personal information with third parties for marketing purposes.

4. Automated educational feedback

Mathematics for Change uses artificial intelligence technologies to assist in generating formative feedback on certain open-ended student assessment responses.

For this purpose, the text of the relevant question, the associated assessment criteria or rubric, and the student’s written response may be securely transmitted to an external AI service provider.

Students’ names, email addresses, teacher-managed student codes, teacher email addresses, and school identifiers are not intentionally transmitted to the AI provider as part of the automated assessment process.

The AI service currently used for this purpose is provided through the OpenAI API. Data submitted through the OpenAI API is not used to train OpenAI models by default. OpenAI may retain API data for a limited period for security and abuse-monitoring purposes, in accordance with its applicable data retention policies.

Automated feedback is used exclusively for formative educational purposes and is not intended to make decisions that produce legal or similarly significant effects on students. It should not be considered a substitute for teacher judgement or formal academic assessment.

Students and teachers should avoid including names or other unnecessary personal or sensitive information in open-text assessment responses.

5. Legal basis for processing

Depending on the nature of the processing, M4C Education OÜ relies on one or more of the following legal bases:

Consent, where an individual voluntarily opts in to marketing or other communications requiring consent;
Performance of a contract or steps taken prior to entering into a contract, where processing is necessary to provide requested or purchased services, manage teacher accounts, or administer school access;
Legitimate interests, where necessary to operate, secure, maintain, and improve the Mathematics for Change website and services, provided that these interests are not overridden by the rights and freedoms of the individuals concerned;
Compliance with legal obligations applicable to M4C Education OÜ.

Where M4C Education OÜ processes pseudonymised student assessment data on behalf of a School, the School is responsible, in its role as Data Controller, for determining the appropriate lawful basis for that processing.

6. Cookies and analytics

This website is hosted on Wix.com, which may use cookies and similar technologies to support website functionality, security, performance, and analytics.

Where required by applicable law, non-essential cookies and similar technologies are used only in accordance with the user’s cookie preferences or consent.

Users may also manage or disable cookies through their browser settings.

For more information about Wix’s privacy and cookie practices, please refer to the Wix Privacy Policy.

7. Data storage and protection

Mathematics for Change uses Wix.com and associated service providers to host and operate the platform. Personal data is protected through reasonable administrative and technical security measures.

Access to stored information is restricted to authorised personnel who require access for operational, support, or administrative purposes.

Pseudonymised student assessment data is retained for the duration of the relevant trial, subscription, or educational engagement and for up to 12 months thereafter, in order to provide teachers with continued access to assessment results and support related educational activities.

The relevant school or educational institution may request earlier deletion of pseudonymised student assessment data, subject to applicable legal or technical requirements.

After the applicable retention period, student assessment data may be deleted or irreversibly anonymised, unless a longer retention period is required by law or specifically agreed with the relevant educational institution.

8. Your rights

Under the EU General Data Protection Regulation (GDPR), where applicable, you have the right to:

Access your personal data;
Request correction of inaccurate or incomplete personal data;
Request deletion of your personal data;
Request restriction of processing;
Object to certain types of processing;
Request data portability;
Withdraw consent at any time where processing is based on consent, without affecting the lawfulness of processing carried out before withdrawal;
Lodge a complaint with a competent data protection supervisory authority.

To exercise these rights, contact info@mathematicsforchange.com.

9. Updates

This Privacy Policy may be updated from time to time to reflect changes to the platform, educational services, operational practices, or legal requirements.

Any significant updates will be published on this page with a revised “Last updated” date.

Mathematics for Change is committed to responsible digital education, transparency, and student privacy.