Doctrine and Covenants 93: 1-20 (Lesson 97 in Seminary Doctrine and Covenants Teacher Manual)
We have John's testimony of how Christ became like His Father and received the fulness of His Father's glory.
He became like His father, one step at a time, grace to grace
We, too, may become like our Heavenly Father, one step at a time, grace to grace.
To demonstrate this principle, I set up a ladder in our classroom and asked a student to climb to the top.
At first, the student was very willing, until I told him he could not use the steps.
We discussed how difficult this would be.
After some discussion, I had the students write on sticky notes the steps they need to take to receive the fulness of our Heavenly Father's glory.
We discussed the things they wrote down and then they placed the notes on the steps of the ladder, emphasizing the importance of each step.
As part of the discussion, we read this quote from the Prophet Joseph Smith.
(this is where I got the idea to use a ladder rather than have them just come up to the chalkboard and write their answers)
If you dont have access to a ladder, a small step stool will work or you can place stepping stones on the floor and ask them to go from start to finish without stepping off the stones, etc.
The students can label the stones just as we labeled the steps on the ladder.
There are lots of adaptations.
The following statement by the Prophet Joseph Smith clarifies one aspect of growing from grace to grace until we receive a fulness: