Students in the 9th and 10th grade are in courses that use Middle Years Program (MYP) grading and assessment practices. 
Please click the link for a video guide to MYP grading.

An addition 1.0 is added on the above conversion for:
AP courses
IB DP HL and SL courses 

Weighted averages
Weighting will be applied:
on the 4.0 scale for classes of 2015 and 2016
on the 1-7 scale for class of 2017 and beyond

Determining class rank:
Classes of 2015-2016 will be ranked on the 4.0 scale
Classes of 2017 and beyond will be ranked on the 1-7 scale