No, teacher is not using weighting. Here are couple of screen shots so you can see the problem.
https://drive.google.com/file/d/0B2qyqvVYwjDYUU1SdzBOZkNMbTg/edit?usp=sharing
https://drive.google.com/file/d/0B2qyqvVYwjDYYTRJcmNvQml1QVE/edit?usp=sharing
https://drive.google.com/file/d/0B2qyqvVYwjDYQURNVk9mT3RaRFE/edit?usp=sharing
https://drive.google.com/file/d/0B2qyqvVYwjDYeUplM2Mta2hPRkk/edit?usp=sharing
https://drive.google.com/file/d/0B2qyqvVYwjDYM3FjZzJnbnBaMU0/edit?usp=sharing
Thanks,
Zvonko