My third graders cannot subtract and I am lost on which direction I should take them... 1. Show them the standard algorithm. They all TRY to do this but they don't understand what they are doing so they aren't successful. I could probably get them to be able to subtract by doing this but risk the kids not actually understanding what they are doing... or.... 2. Show them multiple strategies. I have shown them several strategies that some are trying and finding a little success. The problem is that it is difficult to plan as there are not really lesson plans for these types of things. I feel like I need to do some direct instruction but have no plan to follow... I also think that they will make better sense of subtraction this way but it may take longer and we just don't have the time. Ideas, teach the algorithm or show them other strategies they may connect better with...???