As I follow the discussion about providing content strands (probability) not included in Investigations grade level units, I wonder if we are inadvertently returning to an inch deep-mile wide curriculum. The Standards encourage investigation of topics in depth. We need some topics taken off the table to allow students the time to fully develop concepts and skills. How can we provide meaningful instruction in all strands in depth every year? As we put more back into the curriculum aren't we moving back to "covering" topics? Are there ways to maintain previously learned content without building a unit? What are we giving up each time we put more into the curriculum? We must prioritize what students will learn not list everything we would like them to learn and find that a school year is not long enough to get it all done well.