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2023-08-20   Pre-Intermediate
Should Parents Use Hitting as a Form of Punishment - Ⅱ

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Nearly one hundred parents have been through this program. Rose Berge believes that their work has been effective in changing the community. “It has helped people talk about punishing children. The...


2023-08-18   Pre-Intermediate
Should Parents Use Hitting as a Form of Punishment - Ⅰ

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What do you do when a child misbehaves? What if he does not listen? What if she breaks your house rules? All parents must face these questions at some time. All parents teach their children right a...


2023-08-17   Video
Photosynthesis- Part 2- Chemical Process

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Photosynthesis is a set of chemical reactions in which light energy is converted to chemical energy. Light energy enables the movement of electrons from molecules that donate electrons ...


2023-08-16   Pre-Intermediate
Massive Open Online Courses, Part Two

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Today, that "something" has more than one million students.Will many of these students do all of their college work by computer? If so, they would enter the professional world with course completion d...


2023-08-14   Pre-Intermediate
Massive Open Online Courses, Part One

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The movement toward education by computer is developing fast.Massive Open Online Courses, called MOOCs, are changing how people learn in many places.For years,people could receive study materials from...


2023-08-13   Video
Photosynthesis- Part 1- Overview

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[SCRIBBLING] SPEAKER: Almost all life on Earth is solar powered.$#10320#$10320#$ Plants, algae, and some bacteria capture light energy from the sun and convert it to chemical energy in ...


2023-08-01   Video
Think Like a Scientist - Gorongosa

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GREG CARR: I flew over Gorongosa. I'm looking down, and it's magnificent. There's a great lake in the center of the ecosystem. There's rivers. There's a mountain with a rainforest. ...


2023-07-28   Video
Identifying the Key Genes for Regeneration

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ALVARADO: Imagine that somebody came and told you that there were animals whose heads could be decapitated, and that, in the span of a short period of time, these heads would begin to grow again from ...


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