Probably not. You can ask your school to count those days towards your child’s assigned days at the alternative school, but they don’t have to count them. For example, if your child is assigned to an alternative school for 60 days but the school places your child in in-school suspension for 10 days before moving your child to the alternative school, the school does not have to count those 10 days of in-school suspension towards the 60-day sentence. However, it never hurts to ask.
To learn more about in-school-suspension placements and how they are used with disciplinary alternative education placements, read Section 37.009 of the Texas Education Code, beginning at section (a-2).