Model the hierarchy of the real number system, including natural, whole, integer, rational, and irrational numbers.
The Number System
Explore the real number system and its appropriate usage in real-world situations.
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Plot rational numbers on number lines and ordered pairs on coordinate planes.
Extend the understanding of the number line to include all rational numbers and apply this concept to the coordinate plane.
Understand the concept of opposite numbers, including zero, and their relative locations on the number line.
Understand that the positive and negative representations of a number are opposites in direction and value. Use integers to represent quantities in real-world situations and explain the meaning of zero in each situation.