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A substitute teacher is a person who teaches a school class when the regular teacher is absent or unavailable; e.g., because of illness, personal leave, maternal leave and so on. "Substitute teacher" (usually abbreviated as sub) is the most commonly used phrase in the United States, South Africa, Canada (except Ontario and New Brunswick [1 ...
2. Complete the substitute teacher onboarding process. Once your initial application has been reviewed, you’ll likely be prompted to undergo a criminal background check, as is required by law ...
Paraprofessional educator. A paraprofessional educator, alternatively known as a paraeducator, para, instructional assistant, educational assistant, teacher's aide or classroom assistant, is a teaching -related position within a school generally responsible for specialized or concentrated assistance for students in elementary and secondary ...
Dorothy Bailey, a substitute teacher, teaches a class at La Jolla Elementary School in Moreno Valley, Calif., on Sept. 23, 2021. Credit - Terry Pierson—MediaNews Group/Press-Enterprise/Getty Images
All substitute teachers who work for Miami-Dade can be rehired by Kelly Education, pending a background check. The goal is to eventually hire 6,000 substitute teachers, said Kathie Martin, senior ...
Environmental stress screening (ESS) refers to the process of exposing a newly manufactured or repaired product or component (typically electronic) to stresses such as thermal cycling and vibration in order to force latent defects to manifest themselves by permanent or catastrophic failure during the screening process. The surviving population ...
Technology [ edit] Electronic switching system, an automated telephone exchange. Emergency stop signal, on automobiles. Energy storage system. Environmental Sensor Station. Environmental stress screening. ESS Technology, an American multimedia technology manufacturer. Experimental SAGE Subsector, a prototype Cold War Air Defense Sector.
The explained sum of squares, defined as the sum of squared deviations of the predicted values from the observed mean of y, is. Using in this, and simplifying to obtain , gives the result that TSS = ESS + RSS if and only if . The left side of this is times the sum of the elements of y, and the right side is times the sum of the elements of , so ...