Final answer:
In Tier 1 of the RTI model, commonly known as primary prevention, strategies and interventions are implemented schoolwide to support all students. Examples include positive behavior support, high-quality instruction, and data-based decision-making.
Step-by-step explanation:
In Tier 1 of the RTI model, the strategies or interventions commonly used are often referred to as primary prevention strategies. These strategies are implemented schoolwide and are designed to support the learning and behavior of all students. Some examples of Tier 1 interventions include:
- Implementing a positive behavior support system
- Providing high-quality instruction and curriculum
- Using data to monitor progress and inform instruction