This Latin phrase, used in the law, means “the expression of one thing is the exclusion of the other.” In other words, when certain things are specified in a law, an intention to exclude all others from its operation may be inferred.
Why do I tell you this? Because the brilliant lawyers that school districts hire with your tax dollars love to ignore that age old maxim when it comes to parental requests to opt out of full period AI. You see, the Opt Out law says: “(a) A parent is entitled to remove the parent’s child temporarily from a class or other school activity that conflicts with the parent’s religious or moral beliefs if the parent presents or delivers to the teacher of the parent’s child a written statement authorizing the removal of the child from the class or other school activity. A parent is not entitled to remove the parent’s child from a class or other school activity to avoid a test or to prevent the child from taking a subject for an entire semester.
Now catch that last part. The law specifies two things that define when a parent is NOT ENTITLED to remove the child from an activity. The first is to avoid a test, which does not apply to full period AI classes. The second is to prevent a child from taking a subject for an entire semester. This also does not apply to removal from full period AI as (a) the student already has other math or language arts classes and (b) by offering to do AI outside of the full period setting, the parent defeats any argument that AI itself is a subject we are trying to avoid.
So when the school tells you that you are not entitled to remove your child from full period AI because another part of the Education Code says its required (it doesn’t really say that, but let’s pretend with them), just remind them that under the principle of Expressio Unius Est Exclusio Alterius, accelerated instruction can never be considered an exception to 26.010, because the law presumes that all exceptions have been incorporated in the statute and unexpressed ones cannot be implied.