This course aims to expand learners' understanding of numbers by introducing the concept of negative numbers and developing their comprehension of absolute value. Through this course, learners will gain the ability to represent quantities that have opposite directions using rational numbers, and they will also learn how to compare these quantities on a number line. Additionally, a key aspect of this course is to explore the meaning of zero within its specific context.

By extending their knowledge of numbers to include negative numbers, learners will develop a more comprehensive understanding of mathematical concepts. Negative numbers are essential in representing quantities that go in the opposite direction, such as debts or temperatures below zero. Understanding absolute value is crucial in determining the distance between numbers, regardless of their sign.

Comparing these quantities on a number line allows learners to visualize and understand the relationships between positive and negative numbers. This skill is particularly important in real-world applications, where quantities with opposite directions need to be compared and analyzed. By gaining proficiency in comparing and representing negative quantities, learners will be better equipped to solve mathematical problems and make informed decisions in various contexts.

Lastly, this course pays special attention to the significance of zero within its specific context. Zero is a unique number that serves as a reference point, separating positive and negative numbers on a number line. Understanding the role of zero is crucial in comprehending the concepts of absolute value and comparing quantities with opposite directions. Learners will explore the various applications and implications of zero in different mathematical scenarios, strengthening their overall numerical literacy.