Editorial

The pupils were divided into three groups and learnt the same topics using an inquiry based approach, but with variations that some were concrete manipulative based, others DGS based and the final group paper-and-pencil based. In addition to the app itself and its potential use for teaching, I particularly find the issues discussed, such as "Simulation vs. animation", "Demonstration vs. self-study" and "Experiment vs. user guidance", to be very useful for future educational app design. In the final paper, Sheldon Gordon and Florence Gordon present how Excel can be used to enrich understanding of the concepts and methods in elementary statistics such as the distribution of data and the Central Limit Theorem.