The phrase "aid to understanding" is correct and usable in written English.
It can be used when referring to something that helps clarify or make a concept easier to comprehend.
Example: "The diagrams provided in the textbook serve as an aid to understanding the complex theories discussed in the chapters."
Alternatives: "assistance in comprehension" or "help with understanding".
For difficult-to-understand texts, prosody can be a real aid to understanding.
Ronse De Craene, L. P. Cambridge University Press, Floral diagrams: an aid to understanding flower morphology and evolution (2010).
One essential aid to understanding the human genome is to sequence the surprisingly similar genome of the mouse.
This theoretical analysis does not explain actual economic fluctuations; it is merely an aid to understanding them.
As an aid to understanding the original text early synagogues read the Torah in both Hebrew and the vernacular (which 2000 years ago was the Aramaic Targum).
And, in fact, very much in line with the BBC's editorial guidelines, which say: The word 'terrorist' itself can be a barrier rather than an aid to understanding.
Some systems are designed to be used for coastal mapping, others as aids to understanding how key processes create different coastal features.
The Times Reader recreates those aids to understanding using Microsoft's new Windows Presentation Foundation WPFF) and other WinFX tools intended to make Vista visually richer than Windows XP.
When sung, elaborate literary artifices and unnatural word orders would present audiences with unnecessary problems, but simple words and repetitions of phrases provide aids to understanding.
Lincoln Center had been Avis to Carnegie Hall's Hertz, and I thought, why be a car?" She surrounded her innovative programs with aids to understanding: lectures, symposiums and concerts guiding listeners toward "the art of listening," as she calls it.
