If the first dose of a tetanus toxoid-containing vaccine is administered before the first birthday, 4 doses are necessary before beginning the 10-year cycle of booster doses. If the first dose is administered after the first birthday, 3 doses are necessary.
Teacher-Authored Instructional Unit Samples. The content specialists in the Standards and Instructional Support office have been working with educators across the state to create instructional units based on the published curriculum overview samples.
The US College Unit System. The number of units assigned to a course corresponds to the number of hours that a student will attend class for that course. For example, a course that consists of three class sessions per week, and where each class session last for 50 minutes, will be assigned a value of three units.