Mastering the Fundamentals of Mathematics

Course No. 1014
Professor James A. Sellers, Ph.D.
The Pennsylvania State University
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4.9 out of 5
76 Reviews
96% of reviewers would recommend this product
Course No. 1014
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Course Overview

Multiplying and dividing large numbers. Simplifying fractions and converting percentages. Handling square roots and exponents. These and other skills are the veritable foundation on which all of mathematics rests. To master them is to unlock the door to more advanced areas of study—such as algebra, geometry, and calculus—and to discover new levels of confidence in dealing with the math of everyday life.

Whether you're a high-school student preparing for the challenges of higher math classes, an adult who needs a refresher in math to prepare for a new career, or someone who just wants to keep his or her mind active and sharp, there's no denying that a solid grasp of arithmetic and prealgebra is essential in today's world. Knowing the fundamentals of mathematics can

  • increase your chances of success in high-school and college math classes;
  • prepare you for a career in a field that requires a strong foundation in math, such as economics, engineering, medicine, and the building trades;
  • strengthen your everyday critical thinking skills; and
  • help you handle with confidence everyday tasks such as shopping and planning a personal budget.

Yet despite how basic this kind of math may seem, the mechanics of mathematics remains a mystery to many of us because we've been taught to focus solely on our answers. But in the opinion of award-winning Professor James A. Sellers of The Pennsylvania State University, a true understanding of basic math involves more than just arriving at the right solution. It involves

  • properly understanding the nature of numbers and mathematical concepts,
  • paying close attention to the step-by-step processes behind different calculations, and
  • thinking about what you're solving for—and why you're solving for it in a specific way.

This more well-rounded approach to the basics of mathematics is a surefire way to strengthen your current knowledge or to gain new skills for more deftly and confidently approaching and dealing with math. And it's all available to you in Professor Sellers' engaging course, Mastering the Fundamentals of Mathematics. Using the same inspirational teaching skill and experience he's brought to his other popular Great Courses in math, Professor Sellers reveals the secrets behind all the key math topics you need to know. In 24 lectures packed with helpful examples, practice problems, and guided walkthroughs, you'll finally grasp the all-important fundamentals of math in a way that truly sticks.

Explore All the Essential Areas of Basic Math

Designed for lifelong learners of all ages, Mastering the Fundamentals of Mathematics zeroes in on topics that everyone needs to know:

  • Adding, subtracting, multiplying, and dividing whole numbers, fractions, negative numbers, and decimals
  • Converting between fractions, decimals, and percentages
  • Solving real-world problems involving ratios and proportions
  • Working with whole-number exponents and square roots

With each topic, Professor Sellers shows you how to approach, understand, and solve problems of varying complexity. And, later in the course, he offers brief introductions to more advanced areas of math and prealgebra, including

  • two-dimensional geometry,
  • elementary number theory, and
  • basic probability and statistics.

And whether he's discussing the order of operations or introducing you to methods for plotting points on a coordinate plane, Professor Sellers shows that the key to facing down more intimidating math problems is by tapping into basic concepts and calculations you've already mastered. Like an inspirational instructor who only has your success in mind, he reveals how basic math comes together—and even works together—to help you solve problems such as finding the area of a circle or breaking down a complex word problem involving statistics.Learn Tricks and Shortcuts for Solving Problems

To help you solve problems with greater ease, Mastering the Fundamentals of Mathematics is packed with tips, tricks, techniques, and shortcuts. Here's just a small sampling of what you'll find in this course.

  • Reducing fractions to their lowest terms: When dealing with fractions in math, you'll often be required to express your answers in the lowest terms to make the fractions easier to understand. So how can you tell when a fraction has been reduced to its lowest term? You'll know because the only divisor or factor that the numerator (top number) and denominator (bottom number) share is 1. For example, the fraction 4/8 is not in its lowest term because both numbers share a factor of 2.
  • Adding numbers with different signs: What's a less complicated way to solve an addition problem such as 7 + (- 3) without using a number line? First, figure out which number has the larger absolute value (7). Then, subtract the other absolute value from this one (7 - 3 = 4) and attach the sign of the number that had the larger absolute value (4). That's it!
  • Lining up decimal points: Sometimes, performing calculations with large decimals (such as 153.46 + 5343.3) can be tricky, but the important point is knowing when to align your decimal points. In addition and subtraction problems, it's essential to line up corresponding digits in a right-justified way to get the correct answer; with multiplication and division, however, this alignment is unnecessary.
  • Calculating tips in your head: Do you always find yourself unsure of how much of a tip to leave? Knowing how to work with percentages and decimals makes it easy. To calculate a 15% tip, take 10% of the bill just by moving the decimal point one place to the left (example: $12.00 would be $1.20). Then, add half of that number ($0.60) to that amount and you've got the answer ($1.80). If you want to leave a 20% tip, take 10% of the bill ($1.20) and just double it ($2.40).

An Interactive, Engaging Way to Learn Math

An added feature of Mastering the Fundamentals of Mathematics is its interactive nature. At specific points in a given lecture, Professor Sellers gives you a problem and invites you to pause the course, try your best to solve the problem, and then continue the course to check youranswer alongside his and chart your personal progress. Oftentimes, Professor Sellers roots his practice problems in everyday scenarios in which you're likely to find yourself, such as paying for groceries and tipping at restaurants.

Plus, he's crafted a free, comprehensive workbook with a complete answer key to go along with his course—one that comes filled with additional practice problems on each topic he covers in the course.

Yet even with its wealth of practice problems and exercises, what makes this course so rewarding is ultimately Professor Sellers himself. As Director of Undergraduate Mathematics at The Pennsylvania State University, he's in the unique position of knowing the specific areas math students have trouble with—and the specific ways to help them over these common hurdles. Calm and clear, this winner of the Teresa Cohen Mathematics Service Award is a constantly encouraging presence who refuses to let you give up and helps you prove to yourself that you can be successful in math.

So whether you're just setting out on your mathematical journey or whether you simply want to rediscover what you've forgotten, you'll find Mastering the Fundamentals of Mathematics to be an invaluable guide to an invaluable subject.

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24 lectures
 |  Average 31 minutes each
  • 1
    Addition and Subtraction
    This introductory lecture starts with Professor Sellers’ overview of the general topics and themes you’ll encounter throughout the course. Then, plunge into an engaging review of the addition and subtraction of whole numbers, complete with several helpful tips designed to help you approach these types of problems with more confidence. x
  • 2
    Continue your quick review of basic mathematical operations, this time with a focus on the multiplication of whole numbers. In addition to uncovering the relationship between addition and multiplication, you’ll get plenty of opportunities to strengthen your ability to multiply two 2-digit numbers, two 3-digit numbers, and more. x
  • 3
    Long Division
    Turn now to the opposite of multiplication: division. Learn how to properly set up a long division problem, how to check your answers to make sure they’re correct, how to handle zeroes when they appear in a problem, and what to do when a long division problem ends with a remainder. x
  • 4
    Introduction to Fractions
    Mathematics is also filled with “parts” of whole numbers, or fractions. In the first of several lectures on fractions, define key terms and focus on powerful techniques for determining if fractions are equivalent, finding out which of two fractions is larger, and reducing fractions to their lowest terms. x
  • 5
    Adding and Subtracting Fractions
    Fractions with the same denominator. Fractions with different denominators. Mixed numbers. Here, learn ways to add and subtract them all (and sometimes even in the same problem) and get tips for reducing your answers to their lowest terms. Math with fractions, you’ll discover, doesn’t have to be intimidating—it can even be fun! x
  • 6
    Multiplying Fractions
    Continue having fun with fractions, this time by mastering how to multiply them and reduce your answer to its lowest term. Professor Sellers shows you how to approach and solve multiplication problems involving fractions (with both similar and different denominators), fractions and whole numbers, and fractions and mixed numbers. x
  • 7
    Dividing Fractions
    Professor Sellers walks you step-by-step through the process for speedily solving division problems involving fractions in this lecture filled with helpful practice problems. You’ll also learn how to better handle calculations involving different notations, fractions, and whole numbers, and even word problems involving the division of fractions. x
  • 8
    Adding and Subtracting Decimals
    What’s 29.42 + 84.67? Or 643 + 82.987? What about 25.7 – 10.483? Problems like these are the focus of this helpful lecture on adding and subtracting decimals. One tip for making these sorts of calculations easier: making sure your decimal points are all lined up vertically. x
  • 9
    Multiplying and Dividing Decimals
    Investigate the best ways to multiply and divide decimal numbers. You’ll get insights into when and when not to ignore the decimal point in your calculations, how to check your answer to ensure that your result has the correct number of decimal places, and how to express remainders in decimals. x
  • 10
    Fractions, Decimals, and Percents
    Take a closer look at converting between percents, decimals, and fractions—an area of basic mathematics that many people have a hard time with. After learning the techniques in this lecture and using them on numerous practice problems, you’ll be surprised at how easy this type of conversion is to master. x
  • 11
    Percent Problems
    Use the skills you developed in the last lecture to better approach and solve different kinds of percentage problems you’d most likely encounter in your everyday life. Among these everyday scenarios: calculating the tip at a restaurant and determining how much money you’re saving on a store’s discount. x
  • 12
    Ratios and Proportions
    How do ratios and proportions work? How can you figure out if a particular problem is merely just a ratio or proportion problem in disguise? What are some pitfalls to watch out for? And how can a better understanding of these subjects help save you money? Find out here. x
  • 13
    Exponents and Order of Operations
    Explore a fifth fundamental mathematical operation: exponentiation. First, take a step-by-step look at the order of operations for handling longer calculations that involve multiple tasks—complete with invaluable tips to help you handle them with ease. Then, see where exponentiation fits in this larger process. x
  • 14
    Negative and Positive Integers
    Improve your confidence in dealing with negative numbers. You’ll learn to use the number line to help visualize these numbers; discover how to rewrite subtraction problems involving negative numbers as addition problems to make them easier; examine the rules involved in multiplying and dividing with them; and much more. x
  • 15
    Introduction to Square Roots
    In this lecture, finally make sense of square roots. Professor Sellers offers examples to help you sidestep issues many students express frustration with, shows you how to simplify radical expressions involving addition and subtraction, and reveals how to find the approximate value of a square root without using a calculator. x
  • 16
    Negative and Fractional Powers
    What happens when you have to raise numbers to a fraction of a power? How about when you have to deal with negative exponents? Or negative fractional exponents? No need to worry —Professor Sellers guides you through this tricky mathematical territory, arming you with invaluable techniques for approaching these scenarios. x
  • 17
    Graphing in the Coordinate Plane
    Grab some graph paper and learn how to graph objects in the coordinate (or xy) plane. You’ll find out how to plot points, how to determine which quadrant they go in, how to sketch the graph of a line, how to determine a line’s slope, and more. x
  • 18
    Geometry—Triangles and Quadrilaterals
    Continue exploring the visual side of mathematics with this look at the basics of two-dimensional geometry. Among the topics you’ll focus on here are the various types of triangles (including scalene and obtuse triangles) and quadrilaterals (such as rectangles and squares), as well as methods for measuring angles, area, and perimeter. x
  • 19
    Geometry—Polygons and Circles
    Gain a greater appreciation for the interaction between arithmetic and geometry. First, learn how to recognize and approach large polygons, including hexagons and decagons. Then, explore the various concepts behind circles (such as radius, diameter, and the always intriguing pi), as well as methods for calculating their circumference, area, and perimeter. x
  • 20
    Number Theory—Prime Numbers and Divisors
    Shift gears and demystify number theory, which takes as its focus the study of the properties of whole numbers. Concepts that Professor Sellers discusses and teaches you how to engage with in this insightful lecture include divisors, prime numbers, prime factorizations, greatest common divisors, and factor trees. x
  • 21
    Number Theory—Divisibility Tricks
    In this second lecture on the world of number theory, take a closer look at the relationships between even and odd numbers, as well as the rules of divisibility for particular numbers. By the end, you’ll be surprised that something as intimidating as number theory could be made so accessible. x
  • 22
    Introduction to Statistics
    Get a solid introduction to statistics, one of the most useful areas of mathematics. Here, you’ll focus on the four basic “measurements” statisticians use when gleaning meaning from data: mean, media, mode, and range. Also, see these concepts at work in everyday scenarios in which statistics plays a key role. x
  • 23
    Introduction to Probability
    Learn more about probability, a cousin of statistics and another mathematical field that helps us make sense of the seemingly unexplainable nature of the world. You’ll consider basic questions and concepts from probability, drawing on the knowledge and skills of the fundamentals of mathematics you acquired in earlier lectures. x
  • 24
    Introduction to Algebra
    Professor Sellers reviews the importance of math in daily life and previews the next logical step in your studies: Algebra I (which involves variables). Whether you’re planning to take more Great Courses in mathematics or simply looking to sharpen your mind, you’ll be sent off with new levels of confidence. x

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What Does Each Format Include?

Video DVD
Instant Video Includes:
  • Download 24 video lectures to your computer or mobile app
  • Downloadable PDF of the course guidebook
  • FREE video streaming of the course from our website and mobile apps
Video DVD
DVD Includes:
  • 24 lectures on 4 DVDs
  • 136-page course workbook
  • Downloadable PDF of the course guidebook
  • FREE video streaming of the course from our website and mobile apps

What Does The Course Guidebook Include?

Video DVD
Course Guidebook Details:
  • 136-page workbook
  • Diagrams & equations
  • Tables of formulas and rules
  • Glossary

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Your professor

James A. Sellers

About Your Professor

James A. Sellers, Ph.D.
The Pennsylvania State University
Dr. James A. Sellers is Professor of Mathematics and Director of Undergraduate Mathematics at The Pennsylvania State University. He earned his B.S. in Mathematics from The University of Texas at San Antonio and his Ph.D. in Mathematics from Penn State. In the past few years, Professor Sellers has received the Teresa Cohen Mathematics Service Award from the Penn State Department of Mathematics and the Mathematical Association...
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Mastering the Fundamentals of Mathematics is rated 4.8 out of 5 by 76.
Rated 5 out of 5 by from Mastering the Fundamentals of Mathematics Professor James Sellers does an excellent job of detailing each lesson so an individual can definitely understand fully what he is teaching. I reviewed all of these lessons and found this to be true. I bought this course for my grandson so he can learn the basics of Mathematics.
Date published: 2019-02-18
Rated 5 out of 5 by from Math Fundamentals The course progressively moved through the subject matter which was excellent. What impressed me the most was the progressive learning value of each problem illustration used in the video. Problem one was basic. Problem two was intermediate. Problem three included various issues that I might not ever consider but thoroughly reinforced the objective of the lesson. The workbook provided further reinforcement.
Date published: 2019-02-06
Rated 5 out of 5 by from A masterful presentation Professor Sellers makes an exemplary presentation of basic mathematics. His explanations are thorough, and interesting.
Date published: 2018-08-23
Rated 5 out of 5 by from excelent presentation I bought this course because mathematics is my Achilles heel. I wanted to renew my foundations so I started with addition and subtraction. It is interesting to see that was a difference in presentation from when I was first learning. The professors presentation is excellent. I would recommend this to parents of young children. As things progressed, I found the course most useful.
Date published: 2018-07-28
Rated 5 out of 5 by from Excellant This is a great review. I am enjoying it. I loved math in high school, but I am now 63 and have forgotten a lot. This is helping it all come back.
Date published: 2018-07-18
Rated 4 out of 5 by from A much needed refresh I have only had this course for a short time, less than a month, but it looks like it will be very helpful in refreshing my math skills and teaching me some things that I have forgotten. The instructor gets right to it which is much appreciated. Too early for 5 star rating but so far so good.
Date published: 2018-06-09
Rated 5 out of 5 by from Superb A superb review of arithmetic up to about the middle school level. Professor Sellors has a serious teaching style with occasional humor and appropriate hand gestures used for emphasis, but without use of eg dancing bears or silly jingles, and he does not devolve into an entertainer.
Date published: 2018-06-09
Rated 5 out of 5 by from Great Teacher! Wish this guy taught all of classes back in High School!
Date published: 2018-04-25
Rated 5 out of 5 by from Very descriptive. Prof. Sellers shows his enthusiasm for mathematics as he goes through the various fundamentals of mathematics. And his enthusiasm is contagious. Although I learned many of these concepts fifty or more years ago, this course was an excellent refresher on what I had forgotten. I like his teaching style so much that I am going to order his next two courses on Algebra.
Date published: 2018-04-12
Rated 4 out of 5 by from My math was rusty. I watch my grand kids two days a week. My grand son would ask me to help him with his math, I soon realized how rusty my math skills had become. He was working with fractions, so I down loaded the course I believe now I will be able to help him as his math gets tougher. So far I am completely satisfied with this course, and would recommend it.
Date published: 2018-03-22
Rated 5 out of 5 by from Everything I expected & more Love the simple basic steps that teach each process so simply.
Date published: 2018-03-18
Rated 3 out of 5 by from Never received workbook! I have always gotten the work book for the course I have bought. This is one instants where Great Courses did not come through. The professor is constant on working out of the workbook, but I have not received one. Very disappointing.
Date published: 2018-02-04
Rated 5 out of 5 by from It's a great course! This is great for anyone wanting to brush up on their math skills! Very helpful!!!
Date published: 2018-02-03
Rated 4 out of 5 by from Solidify the basics My goal is certification to teach middle school math in the public school system. Doing so requires that I pass the Middle School Mathematics Praxis exam. Ugh! Throughout my education, Math/Algebra have been my greatest weakness. My study approach is to begin with the basics and build my confidence from there... and this course is very basic. It teaches math at (in my opinion) the 6th to 7th grade level. For that reason, I did not gain a lot from the early lessons. At about the middle of the course, the lessons started to cover material I had forgotten. I found these tidbits extremely valuable. However, the thing I found to be most valuable about this course was the style in which it was taught. The Professor sets an excellent example of how to approach each concept with individuals that have little confidence in there mathematical skills. I gave this 4 stars only because it was a little more basic than I needed.
Date published: 2018-01-18
Rated 4 out of 5 by from Keeps it simple and interesting I enjoy this course it's a bit slow and tedious at first but once i past the first 2 or 3 lessons I really enjoyed it. This course is just what it states a basic math class. I find revisiting the basics in anything deepens my understanding in the long run.
Date published: 2017-10-16
Rated 5 out of 5 by from Refreshing I've been out of school over 40 years now and have grandchildren . Taking a refresher class so I can assist in any way I can. Teach the children that learning never stops.
Date published: 2017-09-27
Rated 5 out of 5 by from Genius of simplicity. I admire the work of Professor Sellers so much that I actually started teaching Math course for Middle School. Before "Mastering the Fundamentals" I had paralyzing fear of Math: now my 13 year old is in Mathematically "gifted" program. He watched this "movie" since he was five and loved it as much as I did. Brilliant. Generous teacher! Thank you so much.
Date published: 2017-09-27
Rated 4 out of 5 by from Fundamentals Of Mathematics I am very happy with Professor Sellers' as the instructor in this course and think he is excellent at explaining every aspect of every chapter. This is a brush-up for me so I can revisit Algebra, Geometry and hopefully Calculus. This is just for fun. I am currently on Chapter 8. The only negative is that I think there are some errors in the workbook answers and I'm wishing for a list of corrections (eratta) to save reworking and wondering what I've done wrong. Would it be possible for someone to go back through to find the mistakes, then publish a list of any mistakes?
Date published: 2017-08-14
Rated 5 out of 5 by from Worth every penny. The course paid for itself. I purchased this course as a way to brush up on basic mathematics prior to taking an entry exam for college. I took an entry exam last semester which resulted in a less than flattering score. So I decided that before I take a math course I would simply get my math chops back in shape and test again next semester. It worked. This course made all the difference. I tested two classes ahead of where my prior score left me. It saved me months of my life and hundreds of dollars worth of course and book costs. I cannot recommend it enough. The course lecturer is very gentle but also very authoritative. I only wish I had another hand so I could give this course three thumbs up. I got more value out of this than a goy can expect to get anywhere. Shalom.
Date published: 2017-08-07
Rated 5 out of 5 by from Great course from a great company The course is easy to follow and the instructor really love to teach. I now have mastered the fundamentals of mathematics as the title of the course promise.
Date published: 2017-07-22
Rated 5 out of 5 by from Stupendous! I used to think I hated math; this course made me realize that the soul-deadening, mind-numbing discipline presented to me (by all but two of my 14 math teachers) bears no resemblance to the subject presented here. (I decided to view this course as an initial preparation for retaking my GREs later this year.) I highly recommend this course and can say, earnestly, it's fun and, for the first time in my life, I am eager to continue studying the subject. (I also recommend this course for math teachers who aren't as excited about teaching the subject as is Dr Sellers -- hopefully you can learn a thing or two about teaching math, at least in the interest having mercy on your students!)
Date published: 2017-07-14
Rated 5 out of 5 by from mathmania I bought this to review fundamentals and improve my math understanding as a first step toward algebra 1+2. Thought that Dr. Sellers presentation of techniques with square roots was excellent. The course is very well structured and designed to help you reach your goals in using math. Dr. Sellers is a mathematical master.
Date published: 2017-05-31
Rated 5 out of 5 by from Good Refresher - Other Answer Typos? Nice, simple refresher for math. Enjoying it so far, but have only gotten through Lesson 7. The answer which is given for problem 16 of 14/5 is incorrect and should be 54/5. Obviously, if 10 is divided by a fraction which is slightly smaller than 10, then the quotient must be slightly larger than 10. Anyone know any other answer typos?
Date published: 2017-04-20
Rated 5 out of 5 by from Excellent Review Recently I've been watching some of the fine introductory science courses at old GC University. It became obvious that if I was going to go any deeper, I would need a bit more mathematics knowledge. Fortunately the Plus service has a fairly complete run of Algebra, Trig and Calculus courses. Unfortunately my brain has not been forced to math in quite some time. That was where this solid course on the Fundamentals of Math came to the rescue. The early lessons are going to be a review for most of us, but it is still a good brush up on the fundamentals. By the time concepts like dividing by fractions came around, I must admit to relearning some skills I had totally forgotten. Spoiler alert: Flip the second fraction upside down and multiply. The instructor has a low key, encouraging manner that makes math seem less intimidating along with a wry sense of humor and a love of pizza. The later lectures introducing geometry, stats and probability were interesting enough to make me want to take a look at the individual courses covering those topics. The Professor was interesting enough to actually make me want to delve into his algebra classes and see what I had forgotten there or possibly even learn a few things I missed in my high school algebra days. I suspect this would be a great course for home school parents who are wondering how to teach the children about math. The instructor is quite good at making math accessible to everyone and watching this with your kids might be just the ticket to a solid understanding. This is another area where the Plus service could be very useful for home school folks as you can pick and choose which level of math your student is at and watch only those lectures with them.
Date published: 2017-03-20
Rated 5 out of 5 by from clear and concise This is a wonderful review of the basics of arithmetic, with a brief taste of beginning geometry, algebra and statistics. An excellent course for someone who has not been dealing with mathematical problems for a while.
Date published: 2017-03-18
Rated 5 out of 5 by from Highly recommended As an adult who has always struggled with math this course has been very helpful as a refresher and skill builder. Professer Sellers did an exceptional job of conveying the ideas and procedures throughout the course and I feel like I have a much better understanding of the material. The one area I felt was glossed over too quickly was "Lesson 15: Introduction to Square Roots". I know there is a timeframe for each subject and you can only fit so much in a half hour but this was the one lesson that I had to spend a lot of time elsewhere looking for explanations just to finish the course work. All in all, it was a challenging but rewarding course for me and I look forward to starting the Algebra 1 course.
Date published: 2017-03-04
Rated 5 out of 5 by from Excellent. I am learning new things. Also reviewing material that has changed. Everything is so well explained.
Date published: 2017-02-26
Rated 5 out of 5 by from Math course I am 60 years old and never really learned math in school. I am now just a few courses away from getting a degree in computer science. THe only class that is keeping me back is math. This course is absolutely the easiest to understand, easy to follow course that I have ever taken. I am re-learning things that I forgot I didn't know. After completing this course and the prealgebra and algebra 1 courses I am certain that I will blast through the placement test and keep on going... Thank you for offering this course at such an affordable price...
Date published: 2017-01-12
Rated 5 out of 5 by from Got it on sale for a cheap price I always struggled with math. After talking the placement test at my community college they wanted me to take expensive non-credit classes. Thank God i did not. The professor from the basic math dvds explains everything in a enjoyable way, while being clear and very understandable. Because of him I actually love math now. I would recommend this dvd/online stream to anyone who is looking for a review, or looking for ways to improve your arithmetic.
Date published: 2016-12-24
Rated 5 out of 5 by from Math review I have looked for a course that would refresh all my basic skills in math as a basis for memory improvement. Dr. sellers courses are the answer. I can imagine all my children and grandchildren wishing they had him for their math courses
Date published: 2016-10-26
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