Linking Between Points / Showing Relationships

As I mentioned before,

As I was saying before,

As I've already/previously indicated,

As this next slide illustrates,

As we'll see in the next chapter,

As we'll see when we get to the next section,

As with the previous model,

Looking back to what we saw earlier,

Returning now to a point I made previously,

This is reminiscent of the other theory...

Unlike the previous concept,