The High Cost of Grade Retention
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The High Cost of Grade Retention

Howdy! In the 2015-16 academic year, over 38,000 Texas public school children were retained in grade. That means they stayed in the same grade for two consecutive years. The cost of that extra year of schooling, based on average Texas expenditure per pupil, was over three hundred and eighty four million dollars. One has to […]

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CogSci: Two Glasses (Piaget Experiment)
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CogSci: Two Glasses (Piaget Experiment)

This glass here is empty, right? Or is it full? That is empty. And this glass… is full. Now, I will pour in water. This is empty, that is full. Is here more water inside, than before or is it the same amount? Here is more less water, than in the other glass. Why? Because […]

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Preoperational stage – Intro to Psychology
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Preoperational stage – Intro to Psychology

So, continuing with cognitive development and Piaget stages, we’re going to move on to childhood development. Here we the preoperational stage, this covers the preschool years, from about 2 to 6 depending on the person. So, what makes something preoperational? To answer that, we need to know what operational is. An operation is a mental […]

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How Do We Protect Our Planet from Asteroid Impacts?
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How Do We Protect Our Planet from Asteroid Impacts?

Two million kilometers away from Earth, out there in the frozen depths of space, there lurks a giant 500 meter-wide asteroid, one that could eventually collide with Earth! And right now a NASA spacecraft is orbiting this asteroid, studying its every detail. The Osiris-Rex probe arrived at BENNU, the asteroid in question, back in December […]

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Dream – Motivational Video
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Dream – Motivational Video

I don’t know what that dream is that you have. I don’t care how disappointing it might’ve been as you’ve been working toward that dream, but that dream that you’re holding in your mind, That it’s possible! That some of you already know. That it’s hard, it’s not easy. It’s hard changing your life. That […]

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Module 0 Lecture 1 Part 3
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Module 0 Lecture 1 Part 3

In the previous lecture, we asked you to think about a whole bunch of questions, so let’s go ahead and discuss them. The first question we asked you to think about is what is mathematics? Well if you look at the dictionary meaning of mathematics, it says that mathematics is “the study of numbers, and […]

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