Fundamental idea (I don't know a full sentence but maybe this could help you a little)
Example sentence - The answers included fundamental thinking on his part.
Learning is fundamental!
The vase from her grandmother was fundamental.
Cells are fundamental to spreadsheets.
"the fundamental flaw in your plan is...""we used to believe that the fundamental ingredient for life was water..."
The teacher was very fundamental when she taught .
You have to learn fundamental things before moving onto harder subjects
A quark is an elementary particle and a fundamental constituent of matter.
Autotrophs are fundamental to the food chains of all ecosystems in the world.
my daughter goes to corona fundamental intermediateschool!!
A belief in God, not just the freedom of religious faith, was a fundamental tenet in the founding of the United States.The fundamental laws of physics often do not seem to apply at the subatomic level.Before you can perform multiplication, you must first master the fundamental concepts of adding and subtracting.When you begin to cook, you must first understand the fundamental use of kitchen tools.The fundamental nature of a foundation implies that everything that builds on it can only exist if the basics are true.Newton's Laws are a fundamental part of physics.This is a fundamental sentence.
My mother and I agreed to let me drive the car to prom.