STACK | Online assessment

STACK is the world-leading open-source online assessment system for mathematics and STEM. It is available for Moodle, ILIAS and as an integration through LTI.

Why use STACK?

Algebraic answers

Students can answer with algebraic expressions, like \(x^2+y\), and answers are graded based on mathematical properties.

Separate validation and assessment

Answers are validated before they are marked, so students are not penalised for poor programming skills.

Specific feedback

Students are given feedback that refers to their specific answer and mistake, as if marked by hand.

Randomisation

STACK can generate random questions so students are shown different variants of questions, and can repeat quizzes with new variants.

Language support

STACK is available in most European languages and many more, including Hebrew and Japanese.

Open-source

STACK is free to use and is developed by educators like yourself. Contributions are welcomed and encouraged.