These resources speak to both CO Standards-Based grading practices and IB Criterion-Related practices.
Tom Dodd's NASSP Center for Principal Leadership Expert of the Week 2-3-17 blog post on grading and reporting practices:
http://blog.nassp.org/2017/02/03/changing-grading-and-reporting-practices-to-enhance-student-learning/
Lesher IB Criterion-related Grading Parent Letter ENGLISH 9-10-20
10 Questions to Ask Yourself About How Authentically You Assess Students
IBMYP Criteria At A Glance
IBMYP General Performance Level Descriptors for IB Criterion-related Report Card Key
Lesher IBMYP Approaches to Learning (AtL) Work Habits Report Card Rubric English-Spanish
Lesher IBMYP Approaches to Learning (AtL) Work Habits 3-Page Rubric
IBMYP Approaches to Learning (AtL) Continuum Document - May 2013
MYP: From Principles into Practice (Assessment For Learning pages 78 - 92)
PSD 8th Grade 3-Column IBMYP Sample Report Card 11-17-14 DRAFT
Lesher CCSS-CAS & IB Teaching, Learning, & Reporting Agreements 2014-15
PSD IBMYP Assessment Policy 2012
OTHER RESOURCES:
Alternatives article by Guskey
Effective Grading article by Reeves