Moving to a Four-Day Instructional Week in the 2023-2024 school year is a significant change for the ISD community.

This information outlines some of the most important changes. You can find more information about the Four-Day Instructional Week by visiting the information center.

If you can’t find what you’re looking for, reference our Four-Day Instructional Week Frequently Asked Questions page. Reach out to with additional questions.

Instructional Hours

It was important to district leadership that the ISD protect students’ instructional time, which is why the shift to a four-day week eliminates one day of school each week, but extends the other four days by 35 minutes. This is also the reason there have been some shifts around holiday breaks and why some weeks will still have a traditional five days. Shortening the school week by one day does not equal reducing 20% of your student’s instructional time.

ISD students attend school for more instructional hours than the state minimum of 1,044 hours. While there might be slight fluctuations down to the minutes, the overall instructional time your student will receive is the same.


Please use these two calendars for comparison purposes. The four-day calendar is the version the ISD is drafting for a four-day school week, which begins in the 2023-2024 school year. The five-day calendar is not for use, but is simply intended to show the difference in the number of childcare days needed had the ISD stayed on a traditional five-day school week model.

Four-Day Kids’ Safari Calendar

Five-Day Kids’ Safari Calendar

Schedule & Cost Explanation

Price Comparison

Kid’s Safari Childcare Comparison Chart En Español