In this course, you will master math concepts that are essential to solving math at the high school level. This course consists of five video lectures: mixed number and improper fractions, prime factorization, order of operations and other rules on calculation, exponential expressions, and plotting points on the coordinate plane. Each video describes math concepts in detail using handwriting, narrations, and captions. Visuals with narrations will be easy to follow the instructions. These concepts are instructed in middle school math. However, I often see my students have ambiguous knowledge of them. In this course, I select topics with which my students tend to be confused. It is good for you to review those. Math videos include English and Spanish captions. Math terminology is a universal language. If you are comfortable learning math in your native language, first, learn in your language, then relearn in English. I recommend watching videos at your own pace. Once you understand basic math rules, it will become easier to solve math problems. Be aware that your math skills will improve when you get basic knowledge and have confidence in math. Don't rush to learn. Deep and accurate knowledge is good for math. The course will continue to grow. If you complete this course, you will receive information when the course expands.