Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Assessed with:
MAFS.912.NRN.1.2
Related Courses
Related Access Points
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Formative Assessments
Lesson Plans
ProblemSolving Tasks
Unit/Lesson Sequence
MFAS Formative Assessments
Students are asked to describe the difference between rational and irrational numbers, and then explain why the product of a nonzero rational and an irrational number is irrational.
Students are asked to define a rational number and then explain why the product of two rational numbers is rational.
Students are asked to describe the difference between rational and irrational numbers and then explain why the sum of a rational and an irrational number is irrational.
Students are asked to define a rational number and then explain why the sum of two rational numbers is rational.
Student Resources
ProblemSolving Tasks
This task is intended for instructional purposes so that students can become familiar and confident with using a calculator and understanding what it can and cannot do. This task gives an opportunity to work on the notion of place value (in parts [b] and [c]) and also to understand part of an argument for why the square root of 2 is not a rational number.
Type: ProblemSolving Task
This task has students experiment with the operations of addition and multiplication, as they relate to the notions of rationality and irrationality.
Type: ProblemSolving Task
Parent Resources
ProblemSolving Tasks
This task is intended for instructional purposes so that students can become familiar and confident with using a calculator and understanding what it can and cannot do. This task gives an opportunity to work on the notion of place value (in parts [b] and [c]) and also to understand part of an argument for why the square root of 2 is not a rational number.
Type: ProblemSolving Task
This task has students experiment with the operations of addition and multiplication, as they relate to the notions of rationality and irrationality.
Type: ProblemSolving Task