Okay, try this:
Give them a marking scheme before they do the project, and use it to grade them. It will be so descriptive of what you want them to do that any student who follows directions well will do well. Give a 0, 1 or 2 mark for each criterion.
Research: The student did appropriate research before the project: /2
Topic: The student chose a topic appropriate to the assignment: /2
Quantity: The student did a reasonable amount of work for it: /2
Presentation: The work was presented clearly and intelligibly: /2
Grammar: The student provided highly correct English: /2
Spelling: The spelling of the assignment was well corrected: /2
Rhetoric: The structure of the assignment was logical and clear: /2
Examples: The student made use of appropriate examples: /2
References: The student provided a thorough list of resources used: /2
You could add or subtract criteria based on the assignment and student English level.