The authors provide activities for overcoming some fraction misconceptions using calculators specially designed for learners in primary years. The writers advocate use of the calculator as a way to engage children in thinking about mathematics. By engaging with a calculator as part of mathematics learning, children are learning about and using the tools of society as well as developing a deeper understanding of mathematics. They are learning with the aid of technology, becoming techno-literate, and developing number sense. The authors aim to have young students use a calculator to understand an aspect of mathematics in such a way that in future they will not have to use a calculator to perform the same piece of mathematics. (Contains 10 figures.)