Ramirez said a student called the main office to alert them that Jardine appeared drunk and was yelling at the students.
An on-site sheriff's deputy responded and he could tell she was "extremely intoxicated," police said.
Later, a school security officer found in her classroom a half bottle of vodka, an empty single-serving bottle of white wine and a half-empty bottle of an orange drink, police added.
The teacher eventually admitted that she had been drinking the night before, that morning and during lunch in her classroom, police said.