Anybody know where I can find a LAYMAN's INTRODUCTION for the Riemannian Curvature Tensor?

Question

As LAYMAN as it can be, like one who has experience in the following mathematics:
- Algebra I and II
- Geometry I
- Trigonometry
- (basic) Differential Calculus

Answer 1

en.wikipedia.org/wiki/ Basic_introduction_to_the_mathematics_of_curved_spacetime is a good basic introduction. It begins by explaining four dimensional time-space and goes from there.

en.wikipedia.org/wiki/ Riemann_curvature_tensor is the more specific on Reimann. You should read the introduction first.