The Bebras Challenge is the inspiration and basis for many of the resources created by the PACT team (the Bebras initiative is explained at the bottom of the page). This webpage lists the workbooks. More PACT materials (e.g. seasonal tasks) are available for download on the Resources page.

Computational Thinking Workbook 3rd – 6th class

The workbook can be used as a 10 lesson introduction to computational thinking for primary school pupils from 3rd through 6th class, or it can serve as material for an after-school science club activity. The workbook consists of 10 carefully selected computational thinking tasks from the international Bebras Challenge, plus an associated extra work page for each task.

For a limited time, professionally printed copies of the workbook can be ordered free of charge by in-service primary school teachers in Ireland that undertake to give us feedback on its use in the classroom (please use the Workbook Order Form or email us at

Additional links:
Feedback form for CT Workbook 3rd – 6th class If you have undertaken to give us feedback, please use this link.
Table assessment (PDF) (explained in the Teacher Notes) Note, an editable version is available through this Google Doc.
Leaf assessment (PDF) (explained in the Teacher Notes)

To request early access to the materials as they are developed, join our mailing list by emailing us at

International Bebras Bebras ® (, founded by Prof. Valentina Dagienė, Vilnius University, Lithuania, is an international initiative to promote computational thinking among primary and secondary students. It designs one of the most popular gender-balanced computer science-related activities for primary and secondary school students worldwide: the annual Bebras Computational Thinking Challenge (2.5 million participants from 56 countries last year alone, see Bebras statistics).

Bebras Ireland Tech Week Irish Computer Society The Irish Computer Society (ICS) is the National Bebras Organiser for Ireland. The ICS organises the Bebras Ireland challenge as part of its Tech Week activities. Since 2016, PACT members have been the Ireland representatives to the annual International Bebras Task Workshop where tasks for the subsequent international Bebras Challenges are developed. Bebras Ireland tasks created by the PACT team have been translated into tens of different languages by overseas national Bebras organisations and tackled by hundreds of thousands of primary and secondary students worldwide.