Author: Edward Kohn
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184998
Category : Mathematics
Languages : en
Pages : 210
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planes, points, and postulates to squares, spheres, and slopes — and everything in between — CliffsQuickReview Geometry can help you make sense of it all. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. Begin with a review of fundamental ideas such as theorems, angles, and intersecting lines. In no time, you'll be ready to work on other concepts such as Triangles and polygons: Classifying and identifying; features and properties; the Triangle Inequality Theorem; the Midpoint Theorem; and more Perimeter and area: Parallelograms, trapezoids, regular polygons, circles Similarity: Ratio and proportion; properties of proportions; similar triangles Right triangles Circles: Central angles and arcs; inscribed angles; chords, secants, tangents; arc length, sectors Geometric solids and coordinate geometry CliffsQuickReview Geometry acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Geometry
Author: Edward Kohn
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184998
Category : Mathematics
Languages : en
Pages : 210
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planes, points, and postulates to squares, spheres, and slopes — and everything in between — CliffsQuickReview Geometry can help you make sense of it all. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. Begin with a review of fundamental ideas such as theorems, angles, and intersecting lines. In no time, you'll be ready to work on other concepts such as Triangles and polygons: Classifying and identifying; features and properties; the Triangle Inequality Theorem; the Midpoint Theorem; and more Perimeter and area: Parallelograms, trapezoids, regular polygons, circles Similarity: Ratio and proportion; properties of proportions; similar triangles Right triangles Circles: Central angles and arcs; inscribed angles; chords, secants, tangents; arc length, sectors Geometric solids and coordinate geometry CliffsQuickReview Geometry acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184998
Category : Mathematics
Languages : en
Pages : 210
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planes, points, and postulates to squares, spheres, and slopes — and everything in between — CliffsQuickReview Geometry can help you make sense of it all. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. Begin with a review of fundamental ideas such as theorems, angles, and intersecting lines. In no time, you'll be ready to work on other concepts such as Triangles and polygons: Classifying and identifying; features and properties; the Triangle Inequality Theorem; the Midpoint Theorem; and more Perimeter and area: Parallelograms, trapezoids, regular polygons, circles Similarity: Ratio and proportion; properties of proportions; similar triangles Right triangles Circles: Central angles and arcs; inscribed angles; chords, secants, tangents; arc length, sectors Geometric solids and coordinate geometry CliffsQuickReview Geometry acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Calculus
Author: Jonathan J White
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184890
Category : Mathematics
Languages : en
Pages : 130
Book Description
CliffsQuickReview course guides cover the essentials of your toughest subjects. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. Whether you're new to limits, derivatives, and integrals or just brushing up on your knowledge of the subject, CliffsQuickReview Calculus can help. This guide covers calculus topics such as limits at infinity, differential rules, and integration by parts. You'll also tackle other concepts, including Differentiation of inverse trigonometric functions Distance, velocity, and acceleration Volumes of solids with known cross sections Extreme value theorem Concavity and points of inflection CliffsQuickReview Calculus acts as a supplement to your other learning materials. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. You can flip through the book until you find what you're looking for — it's organized to gradually build on key concepts. Here are just a few other ways you can search for topics: Use the free Pocket Guide full of essential information. Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter. Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know. Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center. Tap the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are comprehensive resources that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184890
Category : Mathematics
Languages : en
Pages : 130
Book Description
CliffsQuickReview course guides cover the essentials of your toughest subjects. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. Whether you're new to limits, derivatives, and integrals or just brushing up on your knowledge of the subject, CliffsQuickReview Calculus can help. This guide covers calculus topics such as limits at infinity, differential rules, and integration by parts. You'll also tackle other concepts, including Differentiation of inverse trigonometric functions Distance, velocity, and acceleration Volumes of solids with known cross sections Extreme value theorem Concavity and points of inflection CliffsQuickReview Calculus acts as a supplement to your other learning materials. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. You can flip through the book until you find what you're looking for — it's organized to gradually build on key concepts. Here are just a few other ways you can search for topics: Use the free Pocket Guide full of essential information. Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter. Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know. Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center. Tap the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are comprehensive resources that can help you get the best possible grades.
CliffsQuickReview Human Nutrition
Author: Bernard A. Marcus
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185005
Category : Medical
Languages : en
Pages : 187
Book Description
A comprehensive review guide to help you refresh your study. This guide is particularly useful for midterms and final exams, condensing a semester's worth of information into one concise volume.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185005
Category : Medical
Languages : en
Pages : 187
Book Description
A comprehensive review guide to help you refresh your study. This guide is particularly useful for midterms and final exams, condensing a semester's worth of information into one concise volume.
CliffsQuickReview Psychology
Author: Theo Sonderegger
Publisher: John Wiley & Sons
ISBN: 047019846X
Category : Mathematics
Languages : en
Pages : 178
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. Whether you're new to the science of behavior and mental processes or just brushing up on a favorite old subject, CliffsQuickReview Psychology can help. This guide helps you understand the human brain. Inside, you'll find out about The history of psychology Research methods Developmental psychology Biological bases of behavior Perception Sensation CliffsQuickReview Psychology is an invaluable reference for those who want to understand complex psychological processes, including environmental factors, processing thoughts, and memory. Here are just a few of more things you'll learn about: Sleep Emotions Behavior modification Nature and nurture Personality Abnormal psychology With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: John Wiley & Sons
ISBN: 047019846X
Category : Mathematics
Languages : en
Pages : 178
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. Whether you're new to the science of behavior and mental processes or just brushing up on a favorite old subject, CliffsQuickReview Psychology can help. This guide helps you understand the human brain. Inside, you'll find out about The history of psychology Research methods Developmental psychology Biological bases of behavior Perception Sensation CliffsQuickReview Psychology is an invaluable reference for those who want to understand complex psychological processes, including environmental factors, processing thoughts, and memory. Here are just a few of more things you'll learn about: Sleep Emotions Behavior modification Nature and nurture Personality Abnormal psychology With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Author:
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184831
Category :
Languages : en
Pages : 136
Book Description
Publisher: Houghton Mifflin Harcourt
ISBN: 0544184831
Category :
Languages : en
Pages : 136
Book Description
CliffsQuickReview Astronomy
Author: Charles J Peterson
Publisher: Houghton Mifflin Harcourt
ISBN: 054418484X
Category : Science
Languages : en
Pages : 290
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planets, stars, and galaxies to the search for extraterrestrial life, CliffsQuickReview Astronomy gives you jargon-free explanations of the fundamentals—including all the latest discoveries and theories. This guide introduces each topic, defines key terms, and carefully walks you through each sample problem step-by-step. In no time, you'll be ready to tackle the key concepts in this book such as The history and science of astronomy Origin and evolution of the solar system Hertzprung-Russel diagram Final end states of stars Types of galaxies and their classification In plain words and useful formats, CliffsQuickReview Astronomy provides an overview of the universe and every known type of object that exits within it, so that you can use your study time efficiently. Use this reference in any way that fits your personal style for study and review—you decide what works best with your needs. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 054418484X
Category : Science
Languages : en
Pages : 290
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. From planets, stars, and galaxies to the search for extraterrestrial life, CliffsQuickReview Astronomy gives you jargon-free explanations of the fundamentals—including all the latest discoveries and theories. This guide introduces each topic, defines key terms, and carefully walks you through each sample problem step-by-step. In no time, you'll be ready to tackle the key concepts in this book such as The history and science of astronomy Origin and evolution of the solar system Hertzprung-Russel diagram Final end states of stars Types of galaxies and their classification In plain words and useful formats, CliffsQuickReview Astronomy provides an overview of the universe and every known type of object that exits within it, so that you can use your study time efficiently. Use this reference in any way that fits your personal style for study and review—you decide what works best with your needs. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Trigonometry
Author: David A Kay
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185188
Category : Mathematics
Languages : en
Pages : 178
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. CliffsQuickReview Trigonometry provides you with all you need to know to understand the basic concepts of trigonometry — whether you need a supplement to your textbook and classes or an at-a-glance reference. Trigonometry isn't just measuring angles; it has many applications in the real world, such as in navigation, surveying, construction, and many other branches of science, including mathematics and physics. As you work your way through this review, you'll be ready to tackle such concepts as Trigonometric functions, such as sines and cosines Graphs and trigonometric identities Vectors, polar coordinates, and complex numbers Inverse functions and equations You can use CliffsQuickReview Trigonometry in any way that fits your personal style for study and review — you decide what works best with your needs. You can read the book from cover to cover or just look for the information you want and put it back on the shelf for later. Here are just a few ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185188
Category : Mathematics
Languages : en
Pages : 178
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. CliffsQuickReview Trigonometry provides you with all you need to know to understand the basic concepts of trigonometry — whether you need a supplement to your textbook and classes or an at-a-glance reference. Trigonometry isn't just measuring angles; it has many applications in the real world, such as in navigation, surveying, construction, and many other branches of science, including mathematics and physics. As you work your way through this review, you'll be ready to tackle such concepts as Trigonometric functions, such as sines and cosines Graphs and trigonometric identities Vectors, polar coordinates, and complex numbers Inverse functions and equations You can use CliffsQuickReview Trigonometry in any way that fits your personal style for study and review — you decide what works best with your needs. You can read the book from cover to cover or just look for the information you want and put it back on the shelf for later. Here are just a few ways you can search for topics: Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Linear Algebra
Author: Steven A LeDuc
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185013
Category : Mathematics
Languages : en
Pages : 326
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and approach your exams with newfound confidence. CliffsQuickReview Linear Algebra demystifies the topic with straightforward explanations of the fundamentals. This comprehensive guide begins with a close look at vector algebra (including position vectors, the cross product, and the triangle inequality) and matrix algebra (including square matrices, matrix addition, and identity matrices). Once you have those subjects nailed down, you'll be ready to take on topics such as Linear systems, including Gaussian elimination and elementary row operations Real Euclidean vector spaces, including the nullspace of a matrix, projection into a subspace, and the Rank Plus Nullity Theorem The determinant, including definitions, methods, and Cramer’s Rule Linear transformations, including basis vectors, standard matrix, kernal and range, and composition Eigenvalues and Eigenvectors, including definitions and illustrations, Eigenspaces, and diagonalization CliffsQuickReview Linear Algebra acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — the information is clearly arranged and offered in manageable units. Here are just a few of the features you’ll find in this guide: A review of core concepts Clear diagrams and loads of formulas Easy to understand definitions and explanations Plenty of examples and detailed solutions With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185013
Category : Mathematics
Languages : en
Pages : 326
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and approach your exams with newfound confidence. CliffsQuickReview Linear Algebra demystifies the topic with straightforward explanations of the fundamentals. This comprehensive guide begins with a close look at vector algebra (including position vectors, the cross product, and the triangle inequality) and matrix algebra (including square matrices, matrix addition, and identity matrices). Once you have those subjects nailed down, you'll be ready to take on topics such as Linear systems, including Gaussian elimination and elementary row operations Real Euclidean vector spaces, including the nullspace of a matrix, projection into a subspace, and the Rank Plus Nullity Theorem The determinant, including definitions, methods, and Cramer’s Rule Linear transformations, including basis vectors, standard matrix, kernal and range, and composition Eigenvalues and Eigenvectors, including definitions and illustrations, Eigenspaces, and diagonalization CliffsQuickReview Linear Algebra acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — the information is clearly arranged and offered in manageable units. Here are just a few of the features you’ll find in this guide: A review of core concepts Clear diagrams and loads of formulas Easy to understand definitions and explanations Plenty of examples and detailed solutions With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Precalculus
Author: W. Michael Kelley
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185099
Category : Mathematics
Languages : en
Pages : 242
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. You're sure to get a firm grip on core concepts and key material and be ready for the test with this guide at your side. Whether you're new to functions, analytic geometry, and matrices or just brushing up on those topics, CliffsQuickReview Precalculus can help. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. In no time, you'll be ready to tackle other concepts in this book such as Arithmetic and algebraic skills Functions and their graphs Polynomials, including binomial expansion Right and oblique angle trigonometry Equations and graphs of conic sections Matrices and their application to systems of equations CliffsQuickReview Precalculus acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. You can either read the book from cover to cover or just look for the information you want and put it back on the shelf for later. What's more, you can Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: Houghton Mifflin Harcourt
ISBN: 0544185099
Category : Mathematics
Languages : en
Pages : 242
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. You're sure to get a firm grip on core concepts and key material and be ready for the test with this guide at your side. Whether you're new to functions, analytic geometry, and matrices or just brushing up on those topics, CliffsQuickReview Precalculus can help. This guide introduces each topic, defines key terms, and walks you through each sample problem step-by-step. In no time, you'll be ready to tackle other concepts in this book such as Arithmetic and algebraic skills Functions and their graphs Polynomials, including binomial expansion Right and oblique angle trigonometry Equations and graphs of conic sections Matrices and their application to systems of equations CliffsQuickReview Precalculus acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. You can either read the book from cover to cover or just look for the information you want and put it back on the shelf for later. What's more, you can Use the free Pocket Guide full of essential information Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast. With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
CliffsQuickReview Math Word Problems
Author: Karen L. Anglin
Publisher: John Wiley & Sons
ISBN: 0470197269
Category : Mathematics
Languages : en
Pages : 219
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. CliffsQuickReview Math Word Problems gives you a clear, concise, easy-to-use review of the basics of solving math word problems. Introducing each topic, defining key terms, and carefully walking you through each sample problem gives you insight and understanding to solving math word problems. You begin by building a strong foundation in translating expressions, inserting parentheses, and simplifying expressions. On top of that base, you can build your skills for solving word problems: Discover the six basic steps for solving word problems Translate English-language statements into equations and then solve them Solve geometry problems involving single and multiple shapes Work on proportion and percent problems Solve summation problems by using the Board Method Use tried-and-true methods to solve problems about money, investments, mixtures, and distance CliffsQuickReview Math Word Problems acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for information: View the chapter on common errors and how to avoid them Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.
Publisher: John Wiley & Sons
ISBN: 0470197269
Category : Mathematics
Languages : en
Pages : 219
Book Description
CliffsQuickReview course guides cover the essentials of your toughest classes. Get a firm grip on core concepts and key material, and test your newfound knowledge with review questions. CliffsQuickReview Math Word Problems gives you a clear, concise, easy-to-use review of the basics of solving math word problems. Introducing each topic, defining key terms, and carefully walking you through each sample problem gives you insight and understanding to solving math word problems. You begin by building a strong foundation in translating expressions, inserting parentheses, and simplifying expressions. On top of that base, you can build your skills for solving word problems: Discover the six basic steps for solving word problems Translate English-language statements into equations and then solve them Solve geometry problems involving single and multiple shapes Work on proportion and percent problems Solve summation problems by using the Board Method Use tried-and-true methods to solve problems about money, investments, mixtures, and distance CliffsQuickReview Math Word Problems acts as a supplement to your textbook and to classroom lectures. Use this reference in any way that fits your personal style for study and review — you decide what works best with your needs. Here are just a few ways you can search for information: View the chapter on common errors and how to avoid them Get a glimpse of what you’ll gain from a chapter by reading through the Chapter Check-In at the beginning of each chapter Use the Chapter Checkout at the end of each chapter to gauge your grasp of the important information you need to know Test your knowledge more completely in the CQR Review and look for additional sources of information in the CQR Resource Center Use the glossary to find key terms fast With titles available for all the most popular high school and college courses, CliffsQuickReview guides are a comprehensive resource that can help you get the best possible grades.