### Webinars

P.O. Box 10182, Gaithersburg, Maryland 20898, USA

301-208-8821 Ext. 7

we “at” yangacademy “dot” com

# Online Mathematics Classes

Yang Academy webinars in mathematics are designed primarily for US elementary, middle, and high school students; however, everyone from around the world, with or without any school affiliation, is welcome to attend. The recommended topics for students in grades 2-4, grades 5-7, grades 8-9, and grades 10-11 are listed below.

Each webinar lasts 90 minutes, including 60 minutes of lecture and 30 minutes of question and answer. Attendees may submit their questions using the Q&A feature of the webinar.

# Grades 2-4, Topics A1-A10

A1: Addition and Subtraction of Integers

A2: Multiplication and Division of Integers

A3: Factors and Prime Factorization

A4: Least Common Multiples

A5: Addition and Subtraction of Fractions

A6: Multiplication and Division of Fractions

A7: Perimeter and Area of Two-Dimensional Shapes

A8: Math Puzzles with Addition and Subtraction

A9: Math puzzles with Multiplication and Division

A10: Math Puzzles with Shapes

# Grades 5-7, Topics B1-B10

B1: Addition and Subtractions of Fractions

B2: Multiplication and Division of Fractions

B3: Properties of Exponents (Part 1)

B4: Properties of Exponents (Part 2)

B5: Solving Linear Equations

B6: Solving Quadratic Equations

B7: Word Problems on Proportions, Rates, and Ratios (Part 1)

B8: Word Problems on Proportions, Rates, and Ratios (Part 2)

B9: Word Problems on Proportions, Rates, and Ratios (Part 3)

B10: Introduction to Linear Functions

# Grades 8-9, Topics C1-C10

C1: Rational Expressions

C2: Solving Rational Equations

C3: Pythagorean Theorem and Its Applications

C4: Two special Right Triangles

C5: Solving Equations (Linear, Quadratic, and Polynomial)

C6: Solving Equations (Exponential and Logarithmic)

C7: Application Problems with Exponents and Logarithms

C8: Solving Equations (Radical and Rational)

C9: Introduction to Trigonometric Ratios in Right Triangles

C10: Mixture Problems

# Grades 10-11, Topics D1-D10

D1: Introduction to Trigonometry

D2: Trigonometric Functions

D3: Graphs of Trigonometric Functions

D4: Inverse Trigonometric Functions

D5: Graphs of Inverse Trigonometric Functions

D6: Solving Equations (Polynomials)

D7: Exponential and Logarithmic Functions

D8: Solving Equations (Transcendental Functions)

D9: Solving Equations (All Types)

D10: Growth and Decay Problems