It is well known that learning introductory software development is a difficult task for many students. This paper discusses some of the resources and tools that are available, or have been experimented with, that might be of interest to instructional designers of programming. The resources and tools are discussed in the context of the four phases of the software lifecycle, these being: analyse the problem; design and develop a solution / algorithm; implement the algorithm; and test and revise the algorithm. The tools that are discussed include microworlds, videoclips, flowchart interpreters, and program animators.