Asynchronous learning is a general term used to describe forms of education, instruction, and learning that do not occur at the same place or at the same time. Virtual learning is asynchronous. 

A mass of students who are grouped together and do not mix with other groups of students.

The process of identifying people who have contracted COVID-19 and the people who may have been exposed to the virus, and working with them to interrupt further disease transmission.

A specific type of virus named for the appearances of crown-like spikes on their surface. There are seven known types of coronavirus that can infect human begins regularly. A "novel" coronavirus is a new subtype of coronavirus to which huamn beings have not been previously exposed. As a result, hamns are more susceptible to infection. SARS-CoV-2 is a novel coronavirus. 

Abbreviation of "Coronavirus Disease-2019". The name for the actual disease state caused by the coronavirus. COVID-19 and SARS-CoV-2 are often used interchangeably, though this is inaccurate. The term "COVID-19" should be used to discuss the disease, while SARS-CoV-2 should be used to designate the virus itself. 

Symptoms of COVID-19 include: fever or chills; cough; shortness of breath or difficulty breathing; ftigure; muscle or body aches; headache; new loss of taste or smell; sore throat; congestion or runny nose; nausea or vomiting; and diarrhea. 

A specific type of epidemic - the outbreak of widespread disease - that spreads over greater geographic distances and affects an exceptionally high proportion of the population. Pandemics are relatively rare events. The World Health Organization declared the SARS-CoV-2 outbreak as a pandemic in March 2020. 

Remoting learning occurs when the learner and the instructor, or source of information, are separated by time and distance and therefore cannot meet in a traditional classroom setting. Information is typically transmitted via technology. 

Social and Emotional Learning (SEL) is the process through which children and adults understand and manage emotions, set and achieve positive goals, feel and show empathy for others, establish and maintain positive relationships, and make responsible decisions. 

Certain groups of students attend school during certain days and times, thereby reducing the number of students in the school building. 

Synchronous learning refers to a learning event in which a group of students are engaging in learning at the same time.