Expanded transitional kindergarten, or ETK, is a full-day, six-hour program for children who are 4 years old but will turn 5 during the school year, after Dec. To find an ETK school, ETK LOCATIONS. Emphasis on Social Emotional and Oral Language Development. This Reference Guide updates REF-6595. A one year, no extension, ETK permit will be made available to facilitate this process. Please read the LAUSD ETK guidelines carefully.