Proof of Mathematical Theorems - sometimes hard to find!

Proof Wiki is a collection of over 3000 mathematical proofs. One good example is the limit of sin(x) over (x) found here.

It is very important for our students to not only understand the processes we commonly teach in Mathematics, but can also answer the question "Why is it so?" and investigate the proof behind the theorem.

They may not completely understand it, but it is important that students understand that the theorem has been proved and is 100% true.

It is not by observation that it is always true, it is by proof!