To understand if it's a good grade, you need to consider:
* Your school's grading system: Some schools use a letter system where 7b might be average, while others use a numerical system where it could be above average. Check your school's grading policy.
* Your own progress: Is 7b an improvement on your previous grades? If you've shown significant progress, it's a positive sign. If it's a decline, you might need to focus on improvement areas.
* Your capabilities: Are you naturally gifted in PE or is this grade a reflection of consistent effort? Even a seemingly average grade can be commendable if you've worked hard.
* Your aspirations: If you aspire to a specific career path that requires high grades, then 7b might not be sufficient.
In short, you need to discuss your grade with your PE teacher to understand its meaning within the context of your school and your individual progress. They can provide the best interpretation and advice on how to improve.