Digital tools are useful and in many cases essential for Citizen Science projects. Digital tools, such as mobile applications, desktop GIS (e.g. QGIS), interactive notebooks (e.g. Jupyter Notebooks), and visual data analysis applications (e.g. Orange) help to collect and analyse geospatial data. Similar to scientific research, Citizen Science is also moving to the Cloud. Online computing platforms that provide analysis-ready data and interactive and collaborative analysis environment at low cost are becoming more and more important for Citizen Science activities. However, the threshold to start using them is currently high and any serious attempt to support such activities requires a well-designed approach with training targeting citizen scientists. This is especially the case for primary and secondary school students, whose curricula pay special attention on digital technology and promote involvement to Citizen Science activities. Our project focuses on this group and aims to find out how pre-university students and teachers can be supported to use a modern digital geoscience toolbox for Citizen Science projects. In cooperation with University of Twente Pre‑U, a feasibility study will be performed to identify how the platform and available tools can be used for Citizen Science activities. Potential use cases and expected impacts will be documented. Finally, a roadmap for developing well-written training material for the target audience will be prepared in consultation with teachers. First workshop with the teachers was organized during the 15th NLT Conference in February 2023, during which some of the available tools were introduced and feedback from the teachers was collected.