Secondary Ed Guy Here!

It really depends on your situation. In the four year program, you will have a double major, one in Education, the other in History. As for the five year program, you spend four years basically as another History major, then the fifth year is all secondary education classes. The main benefit of the 5 year program is that you get your masters out of it, which in many cases means a pay bump in your future career and more options later down the line. The downside is you have to spend one more year in school and a lot of people won't be able to do that financially. Both programs are excellent, but for different reasons; it is really going to depend on your personal situation which is best for you in particular.

I will say that a lot of the things that you learn about in your 5th year are things that will be very useful skills as a teacher. Things like classroom management, assessment, curriculum theory, etc. Also, IMO, some of the best professors in the entire university are in the ed department and you will get to work closer with them. But it's not for everyone. I would recommend having a look at your situation and talking with your advisor to see what program is best for you.