We discuss an open source implementation of Backus FP formalism in C++. Our implementation preserves all the nice formal properties of the original language. The implementation is fully C++17 compliant and leverages standard concurrency mechanisms. It provides linear scalability on state-of-the-art shared memory multi cores. By preserving the possibility to use all the rules of the associated “algebra of programs” described by Backus more that 40 years ago, the C++ FP implementation is a natural candidate to be used to introduce parallel programming concepts in core parallel computing courses.