Answer:
Hi!
The answer would be least restrictive environment also known as LRE.
Step-by-step explanation:
Since Sheila has been diagnosed with severe ADHD and her school is aware of it, she is probably now part of the Individuals with Disabilities Education Act. Qualifying for the Disabilities Education Act means, amonst other things, that children who receive special education should learn in the least restrictive environment. What this means is that kids like Sheila should are required by federal law to receive their education along with nondisabled peers, hence, these students should not be removed from regular classes even if they need to use supplementant help or services.