After 3 years of using Eureka Math, I've decided to find a way for my kids to have the Application stories written in front of them for their reference as they work. In the past I would read it aloud and they work it out with nothing to visually refer to until they were all done and we were checking our work.
Therefore I'm using these to create a Math notebook. I'll read the story to them, explain our objective for the day, have them cut out the rectangle for the day, glue it in their Math notebook, and then work out the application problem and find our class exemplars. I hope you find this to be a handy tool in effectively implementing your Eureka Math program in First Grade! I plan on getting the rest of the Modules done ASAP.