Portland Form
Portland Form makes a statement that goes something like: "such and so forces create this or that problem, therefore, build a thing-a-ma-jig to deal with them." The pattern takes its name from the thing-a-ma-jig, the solution.
The total paragraph structure ends up looking like:
- Having done so and so you now face this problem..
- Here is why the problem exists and what forces must be resolved...
- Therefore:
- Make something along the following lines. I'll give you the help I can...
- Now you are ready to move on to one of the following problems...