This is an assignment using the concepts in Wucius Wong's Principles of Design and Form.

First stage

Find two images you can use as a representational form. One natural, one man made. Simplify the shape until it becomes a singular form - only positive and negative

Stage two: Creating plural forms

From your singular form, experiment and create plural and compound forms

Final Stage: Pattern

Once you have created a singular, plural and compound form, choose one to create a pattern with

Reference:
Wong, W., Principles of Form and Design
1993, ISBN 0-471-28558-8