Ohio Mathematics Academic Content Standards (2001)
Number, Number Sense and Operations Standard
Connect physical, verbal and symbolic representations of integers, rational numbers and irrational numbers.
Grade Level Indicators (Grade 7)
Describe differences between rational and irrational numbers; e.g., use technology to show that some numbers (rational) can be expressed as terminating or repeating decimals and others (irrational) as non-terminating and non-repeating decimals.
Grade Level Indicators (Grade 8)
Recognize that natural numbers, whole numbers, integers, rational numbers and irrational numbers are subsets of the real number system.
Principles and Standards for School Mathematics
Number and Operations Standard
Understand numbers, ways of representing numbers, relationships among numbers, and number systems
compare and contrast the properties of numbers and number systems, including the rational and real numbers, and understand complex numbers as solutions to quadratic equations that do not have real solutions;