How to Study Smart: 9 Scientific Ways to Learn Faster

That’s how many hours there are in a week. If you’re a student, you probably feel like this isn’t enough. I know … You have so many assignments to do, projects to work on, and tests to study for. Plus, you have other activities and commitments. And I’m sure you want to have a social… Read More »

Can You Solve The Hardest Easy Geometry Problem? Solve for X

The problem is known as Langley’s Adventitious Angles and was posed in 1922.  It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is difficult and laborious.Watch the video for a solution.

12 Fun Ways to Learn and Remember New English Vocabulary

Gaining mastery in a new language can seem like an impossible task, especially when that language is as complex as English! But our friends at ABA English have 12 great tips to make English learning a little more manageable than you probably thought possible. 🙂 Memorizing new words is a huge part of learning a… Read More »

24 Techniques to Learn English Faster, According to Your Learning Style

Some people have a natural knack for learning languages, but for others learning a new language can be a daunting task. The best way to learn a new language varies depending on your particular learning style. Students are typically taught using a combination of the three learning styles, but they usually have a strong preference… Read More »

BOOKs Elementary Calculus: An Infinitesimal Approach

This is a calculus textbook at the college Freshman level based on Abraham Robinson’s infinitesimals, which date from 1960. Robinson’s modern infinitesimal approach puts the intuitive ideas of the founders of the calculus on a mathematically sound footing, and is easier for beginners to understand than the more common approach via limits. The First Edition… Read More »

Differentiation of polynomials and rational functions

In this section we begin the task of discovering rules for differentiating various classes of functions.  By the end of Section 3.5 we will be able to differentiate any algebraic or trigonometric function as a matter  Download Differentiation of polynomials and rational functions