# Monthly Archives: October 2019

## AOPS Algebra 1 Course, Lesson 8, 10/27/2019

Today, students continued to study the method of solving two-variable linear equations, elimination. In general, the methodology of solving multi-variable linear equation is to reduce two variables to one variable. Not all two-variable linear equation system has solution. One solution … Continue reading

## Singapore Math 8th Class, Lesson 8, 10/27/2019

Today, students continued to explore the quadratic expression factorization ax^2+bx+c when a=1 and other than 1. Factorization is one of four methods in solving quadratic equations. When a quadratic equation is factorized, using factorization in general is considered first. Therefore, … Continue reading

## AOPS Algebra 1 Course, Lesson 7, 10/20/2019

In today’s class, students reviewed linear expression/equations and studies a few examples of word problems to understand the key points and general strategy in solving the word problems in math. In the two-variable linear equations, students learned the idea of … Continue reading

## Notice of Midterm test in Singapore Math 8th Class

This class will have midterm on Nov. 3. For more details, please contact Zhao Laoshi at yz32@yahoo.com

## Singapore Math 8th Class, Lesson 7, 10/20/2019

In today’s class, I guided students to work on factorization of algebraic expressions, especially the special expression factorization, such as a^2+2ab+b^2, a^2-b^2, etc. In the quadratic expression factorization, students learned the definition of quadratic expression and the standard form, special … Continue reading

## AOPS Algebra Course, Lesson 6, 10/13/2019

Today, students continued to work on Algebra 1, the linear equations. Students understand what the linear expressions, linear equations are. The solutions to one-variable linear equations are one solution, no solution and infinite solutions. In addition, students learned the procedure … Continue reading

## Singapore Math 8th Class, Lesson 6, 10/13/2019

In today’s class, students studied expansions of Algebraic expression, especially the method of handling “sign” in algebraic expressions. A few special products were introduced that are so important in the quadratic expression section. By using those special products, we are … Continue reading