What technique employs plain words and everyday syntax to represent programming concepts?

The technique that employs plain words and everyday syntax to represent programming concepts is known as pseudocode concepts. Pseudocode serves as a simplified way to describe algorithms and programming logic without the complexity of actual coding syntax. By using plain language and an informal structure similar to programming languages, it allows learners and programmers to focus on the logic and flow of the program without getting bogged down by language-specific rules.

Pseudocode is beneficial in designing algorithms because it is easily understandable and can be translated into any programming language. This accessibility makes it a favored tool among educators and software developers when discussing logic and structure before diving into code. It helps in planning out the steps an algorithm should follow, making it an important step in the software development process.

This contrasts with the other options: flow-charting utilizes graphical representations to illustrate processes, data modeling involves defining data structures and the relationship between data, and syntax highlighting refers to visually distinguishing programming elements within code for readability.