Curated OER
The Story of Bill Gates
A computer on every desk, and in every home, running Microsoft software. This slogan seemed like a crazy vision in the mid 1980s ,but as this brief look at the early days of Microsoft shows, Bill Gates and his pals were on to something.
Khan Academy
Khan Academy: Definition of P H
An introduction to pH and the pH scale. See examples of calculating pH of pure water, bleach, and orange juice. [11:38]
Khan Academy
Khan Academy: P H, P Oh of Strong Acids and Bases
This tutorial demonstrates deriving the relationship between pKw, pH, and pOH. Calculating the pH or pOH of strong acids and bases. [14:49]
Khan Academy
Khan Academy: Strong Acids and Strong Bases
See some common strong acids and strong bases. Also examine some examples of calculating the pH of a nitric acid solution, sodium hydroxide solution, and a calcium hydroxide solution. [12:32]
Khan Academy
Khan Academy: Biology Foundations: Introduction to P H
Introduction to the concept of pH. [5:21]
Sophia Learning
Sophia: Multiplication: Lesson 6
In this lesson set, students are shown how to multiply numbers with larger values, from two to four digits. It is 6 of 9 in the series titled "Multiplication."
Sophia Learning
Sophia: Multiplication: Lesson 1
In this lesson set, students are shown how to multiply numbers with larger values, from two to four digits. It is 1 of 9 in the series titled "Multiplication."
Sophia Learning
Sophia: Multiplication and Zero: Lesson 7
The video introduces the concept of multiplication by zero, which will always yield an answer of zero. This lesson is 7 of 7 in the series titled "Multiplication and Zero."
Sophia Learning
Sophia: Multiplication: Lesson 5
In this lesson set, students are shown how to multiply numbers with larger values, from two to four digits. It is 5 of 9 in the series titled "Multiplication."
Sophia Learning
Sophia: Multiplication: Lesson 9
In this lesson set, students are shown how to multiply numbers with larger values, from two to four digits. It is 9 of 9 in the series titled "Multiplication."
Sophia Learning
Sophia: Multiplication and One: Lesson 6
This lesson introduces the idea that any number multiplied by one will yield the original number as an answer. It is 6 of 6 in the series titled "Multiplication and One."