Answer:
They help readers identify the steps of the method.
They help readers work in the proper order.
Step-by-step explanation:
Signal words are words used in procedural text. This type of text is one that presents a list of actions that must be done in sequence and represent steps in the execution of a method or process. Within this text, signal words are responsible for determining the order in which these steps should be performed. This helps the reader to identify the start and end of the step and to work in the correct order. These words include "next," "now," "then" and "finally."