I am a bit slow on my reading with Debbie Dillers Math but I just took a class called ADDVantage Math which trains teachers to do Math Recovery. What I discovered was Everyday Math was really lacking in subitizing--which is instantly seeing and knowing a set. I researched and compilied subitizing teaching ideas. And...
I just uploaded my FREE subitizing unit to TPT. You can get yours here
Missing Work FREEBIE
20 hours ago