Intro and conclusion

For the introduction it is important to have an attention getter such as a narrative, a question, humor, state a statistic or anything along those lines. Then you must state your purpose and thesis which includes your subject and what you would like your audience to get from your speech. Now you have to make sure you establish credibility this will make your audience believe in you. Lastly is to preview main points this makes it so your audience has a sense of where the time they have with you will lead them.
Example:
Can I get a horay. Horay! Let me get a horay!? Horay! I still can't here you! Horay! (attention getter). This is what the starting line of the September 2012 Tahoe tough mudder sounded like. I had been working out with a trainer for three months to prepare for this eleven mile journey and it was finally happening.(credibility). This was an amazing experience and I would like to inform you guys what it was all about.(thesis and purpose) today we will talk about the history of the tough mudder, actually doing the tough mudder, and then I will share my personal experience.(preview of 3 points). Let's get started talking about the history of the mudder.(transition)

In the conclusion you must review main points, reinforce purpose, and provide closure.
Example:
Now that we have gone over the history of the tough mudder, actually doing the mudder, and I have shared my experience I hope that you all are able to better understand this amazing event.(review and purpose) next year when the tough mudder comes to your town maybe you will be the one yelling Hooray!(closure)