Would you be able to use the Read with Someone time to practice the comprehension strategy from the weekly anthology? I like mbuckingham's ideas too!
Here are a few ideas that I use in my classroom. For Work on Writing: If you have time for Writer's Workshop, they could continue writing in their writer's notebooks; Kidblog-a free secure online platform that can be used in various ways..."to discuss chapters in a book we read aloud; using metacognitive thinking stems to start our sentences, writing prompts, collaborative class projects, online weekend journals, reflections on learning, ...recommendations" Or Storybird to publish writing...
Word Work: maybe vocabulary from the anthology, I use both vocabulary and Words Their Way words...you could use www.spellingcity.com to practice or quizlet app for iPad; stamping vowels in red and consonants in blue
Read To Self: read JR level books to build stamina; confer individually or in small strategy groups to work on CAFE...
Listening: FREE: www.storylineonline.net or Reading A-Z, Tumble Books; requires membership
Do you teach Science and Social Studies? This is where I try to teach Non-Fiction Text Features and Text Structures...
I hope this helps!