Achieve the Core has resources for both ELA and Mathematics.
The resources for ELA are organized for teachers into the following categories by grade span (k-5, 6-8, 9-12).
- Student Writing Samples
- Assessment Questions
- Curricular Tools
- Supporting All Students
- Professional Development
The materials are free and of decent quality. Here is an example from the k-5 assessment questions page.
Explore and share the valuable pieces with your peers. None of us has the time to review all the materials available on sites such as this, let alone on the web. Sharing with your colleagues is one way to take advantage of the wisdom of the group.