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2. Substitute teacher - Wikipedia

   en.wikipedia.org/wiki/Substitute_teacher

   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 ...

3. Help:Substitution - Wikipedia

   en.wikipedia.org/wiki/Help:Substitution

   Substitution is a function whereby, when an editor saves a page, an item in the wikicode is permanently replaced with its current value. In particular, templates and magic words can be substituted, as an alternative to transclusion. The difference is that when a template is substituted on a page, its appearance on that page will no longer be ...

4. Wikipedia:Substitution - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Substitution

   The subst: keyword (short for "substitution") is used inside template code, placed as a prefix before the name of the template but within the curly braces ( { {}} ). It changes the way the MediaWiki software expands the template. Ordinarily, a template will be expanded "on the fly"; that is, the template code on a page calls a separate page ...

5. Template:Did you know nominations/Substitute Teacher (Key ...

   en.wikipedia.org/wiki/Template:Did_you_know...

   The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page.

6. Paraprofessional educator - Wikipedia

   en.wikipedia.org/wiki/Paraprofessional_educator

   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 ...

7. Hierarchy of hazard controls - Wikipedia

   en.wikipedia.org/wiki/Hierarchy_of_hazard_controls

   Hierarchy of hazard control is a system used in industry to prioritize possible interventions to minimize or eliminate exposure to hazards. [a] It is a widely accepted system promoted by numerous safety organizations. This concept is taught to managers in industry, to be promoted as standard practice in the workplace.

8. Polyalphabetic cipher - Wikipedia

   en.wikipedia.org/wiki/Polyalphabetic_cipher

   Polyalphabetic cipher. A polyalphabetic cipher is a substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case. The Enigma machine is more complex but is still fundamentally a polyalphabetic substitution cipher.

9. Liskov substitution principle - Wikipedia

   en.wikipedia.org/wiki/Liskov_substitution_principle

   t. e. The Liskov substitution principle (LSP) is a particular definition of a subtyping relation, called strong behavioral subtyping, that was initially introduced by Barbara Liskov in a 1987 conference keynote address titled Data abstraction and hierarchy. It is based on the concept of "substitutability" – a principle in object-oriented ...