Lee,
Welcome.
A lot of your profile is very pointed and just what the doctor ordered. But I'm kind of the company curmedgeon -- the toughest grader around here. But there's a bunch of good stuff here, so don't despair.
Anyway, first an overview. Freelancers are expected to be masters or experts at something, really the go-to person if you have a specific problem. That's old school, but we're stuck with it. So, as it happens, freelancing at three different things at once -- curriculum development, education presentation and grant writing -- is not traditionally kosher. It's not impossible, but there is a whole lot of competition out there (millions on Upwork alone), which pushes further towards specialization. For example, if you just did grant writing and worked at that night and day (hyperbole time) you really would become an expert, the absolute got-you-covered grant writer who could sell pigeons to the Bronx borough president. You'd be sought after. In shorthand, expertise is the name of the game 'round here, bucko.
However, I do many profile reviews and I do not see that many grant writers and relatively few curriculum developers, so you might give the two-barrel approach a shot. See what happens. Three? Maybe.
Regardless, your job title should be shorter. It's just a title. It should point people towards the write-up. Education Expert / Grant Writer. Four words is better than six. Get them to come to you. Remember Hemmingway? Less is more.
Then, I'm really stunned you didn't write this yourself in the first person. I'm a meta-communications nutcase and this immediately says you weren't up for the task. Minus one point.
Before I forget, "expert" or a facimile should be your third word if possible. "I am an expert __________, who can __________." In your case, you have "expertise" in sentence three. Make it much higher.
Just pointing this out, but you have "Lee is a semi-retired educator with a wealth of experience ..." Your first descriptor is that you're semi-retired. But nobody says, "I gotta find a grant writer who is semi-retired." (I might be wrong about that, but I doubt it.) There also isn't that much need to say you have a passion for what you do. It's a conversational thing to say, but that belongs at the bottom of the write up, not sentence two. (What people want to know is what you can do and what the benefits might be. Passionate doesn't really meet that standard, although it's not the wrong thing to say.)
With that in mind, the rest of your write-up is great. People will surely want to know that you have spent ten years honing your skillls and that you have rigorous standards and you have experience grant writing for educational purposes. All that is terrific. I should have started with that.
People will also want to know that others have recognized you for your work. This is all good. Good stuff to know. "I am known for my collaborative approach (I changed to first person for you) is also great. Pointing out that others recognize your talents is a fine way of saying all this.
Then, I see you said you have a passion for this at the last sentence. I like that. That's where that belongs.
"I am an expert grant writer focused on educational programming who is dedicated to the task of inspiring and empowering students through well-funded opportunities. With ten years of experience in grant writing and curriculum development with many successes behind me, I can work with your team to consruct substantial and inspiring funding proposals that directly targets resource priorities, increasing your chances of converting an application to an award."
Anyway, I'm just winging it ... tell them you're an expert at something, then tell them what you can make happen (you can increase their chances of getting an award).
I like the tone of your write-up. I'm just tossing out ideas to see what might resonate ... just one opinion. Hope it helps.
Good luck.
