Class help?

So I'm taking a public speaking class this semester, and we've hit the point in the year that our "research projects" are starting - a series on speeches focusing on the same topic. We had one little news speech that introduced our topics; I am of course focusing on car seats.
So this first one coming up soon is the informative speech, the second is persuasive. It's supposed to be 4-7 minutes long, and should NOT be too broad a topic. I did my news speech on the LATCH changes that just went into effect, and also used it as a way to introduce some basic ideas about misuse rates and such (mostly LATCH misuse, to keep it on topic). For the persuasive (which is supposed to be more about how to solve the issues you address in the first two speeches) I'm thinking about focusing on extended RF'ing and PROPER booster use - not switching to or stopping use too early.

SO knowing all that, with only a 4-7 minute window in which I need to narrow down what I'm going to informatively address about car seat use (without infringing on the persuasive territory??) what would you choose to focus on? I'm just having issues narrowing it down.

I'd make the main point reasons to err on the side of outgrowing each step rather than switching early. Yes, there are exceptions, but with ”typical use” that's an important message.

ketchupqueen said:

I'd make the main point reasons to err on the side of outgrowing each step rather than switching early. Yes, there are exceptions, but with ”typical use” that's an important message.

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I'll touch on it, but focusing on it is crossing over into the persuasive territory too much, IMO. The point of that is to persuade people to change what they're doing, which is the goal of the persuasive speech, but not the informative speech. I'm thinking of focusing on laying out "here are the most common types of misuse" and go through 1) wrong restraint (which will touch on the "don't move forward too fast" thing) 2) install issues 3) misuse of seat (such as harnessing improperly). And then... other stuff. Lots of numbers and stats??
I'm thinking I need to find the numbers for automobile injuries and deaths broken down by age... narrowed down to as locally as possible. Anyone have an idea where to look for stats like that? The more relevant I can make it to the local community, the better.

I did an informative speech on "proper car seat use based on a child's physical and emotional development" which using that as my thesis allowed me to touch on ERF, harnessing until booster maturity reached and boostering until passing the 5-step test. I talked about bone development for ERF and showed some google images of seats that would allow kids to ERF to 2+ (it was a Graco snugride, Scenera, and a Radian), then I talked about combo seats for harnessing to ages 5-6 yrs old, I think I only showed a Frontier and Nautilus, then I explained proper booster usage and the 5-step test with some more google images to assist my explanation. I also had to have two real visual aids, so I had a booster that I showed how it went from a HBB to a NBB, and I forget what else I used.

Sorry, I misread and thought you were asking what to do for persuasive.