Thinking about math

So I know I cannot be the only one who starts thinking about next year half way through the current school year. I'm always trying to come up with new ideas to improve lessons, organization, and management and trying them out with a clean slate of students is always exciting. Some ideas, however, are wort starting ASAP! For instance, I am trying to find a way to better my math block. I have noticed that my students need some work on their math vocal. I'm trying to create a memory game with the words and their definitions (I will tqry to remember to post pictures when I finish making the cards). My problem is finding a way and the time to include these into my daily routine. I teach fifth grade and I always want to do more center like activities (or stations) but I find the management of them difficult. Plus I wish their were more of me so that I could be sure that students are doing them correctly. Any ideas and suggestions would be appreciated!!