We got are train to levitate and move from one side to the other . the magnets we use

Were strip magnets to short ones on the side of the train and two long on the track.

We did that so it would line up an levitate and float across at least we thought it would work.

Testing it out and moving we had no idea what  happened when it fell. then we realized the edges Were different so we tried  to put more tape and that worked so it floated. What we learned is to experiment before doing anything and learning more about what I am doing

For the next session  are goal is to get beads or weights on the track and make sure it still floats above the track. We are confident it will work.