These five worksheets on the homophones lead and led are not exactly the most cogent ever to issue from my pen. They do stand on their own, I think, and with some tinkering (which I may get to in the future, and since these are in Microsoft Word and can be manipulated, you can get to whenever you see fit) they might increase in cogency and therefore effectiveness.
If you find typos in these documents, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.