I have been using Lucy Calkins' UOS for 3 years...this is my fourth. I LOVE it, but I need a way to extend some of the units for 2nd graders. I teach a multiage 1st-2nd class . Previously I taught Kg-1st multiage for 2 years. Consequently, my 2nd graders are in their third year with me, K then 1st and now 2nd. They have gone through UOS with great eagerness and success each year , but I need to find ways to extend their skills. Any suggestions? I have thought of doing some different units or trying to create ways to extend the existing ones. Several of my 2nd graders are quite skillful writers and I want to keep them moving along. I am looking for ways to teach paragraphs, for one thing. Thanks for any ideas you have!