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Silbo Gomero (Spanish: silbo gomero [ˈsilβo ɣoˈmeɾo], "Gomeran whistle"), also known as el silbo ("the whistle"), is a whistled register of Spanish that is used by inhabitants of La Gomera, in the Canary Islands.
A retrieval lanyard is a nylon webbing lanyard used to raise and lower workers into confined spaces, such as storage tanks. An activation lanyard is a lanyard used to fire an artillery piece or arm the fuze on a bomb leaving an aircraft. [5] A deactivation lanyard is a dead man's switch, where pulling a lanyard free will disable a dangerous device.
A boatswain's call, pipe, or bosun's whistle is a pipe or a non-diaphragm type whistle used on naval ships by a boatswain. The pipe consists of a narrow tube (the gun) which directs air over a metal sphere (the buoy) with a hole in the top. The player opens and closes the hand over the hole to change the pitch.
Fred Simmons Keller (January 2, 1899 – February 2, 1996) was an American psychologist and a pioneer in experimental psychology. He taught at Columbia University for 26 years and gave his name to the Keller Plan, also known as Personalized System of Instruction, an individually paced, mastery-oriented teaching method that has had a significant impact on college-level science education system.
In 2005, Dan Buckley defined two ends of the personalized learning spectrum: "personalization for the learner", in which the teacher tailors the learning, and "personalization by the learner", in which the learner develops skills to tailor his own learning.
An ITS typically aims to replicate the demonstrated benefits of one-to-one, personalized tutoring, in contexts where students would otherwise have access to one-to-many instruction from a single teacher (e.g., classroom lectures), or no teacher at all (e.g., online homework). [3]
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