In January and February of 2020, we talked with twenty 5K teachers and thirteen 4K teachers from across the District about their transition and information-sharing practices. We recruited 5K teachers from six elementary schools with varying numbers of 4K feeder sites and conducted focus groups with each 5K team. We also conducted a mix of focus groups and individual interviews with the 4K teachers working at the feeder sites for two of the six elementary schools, including 4K sites in public schools, Head Start programs, and early care and education centers (ECEs). We asked teachers about transition practices they used, what information sharing looks like between 4K and 5K and what barriers they see to giving or receiving that kind of information. Once we had the data, we coded it to elicit broader themes. (author abstract)