Content Strand 1: Number Sense (NS)

 

NS01 (Number and Numeration) Demonstrate understanding of the concepts and symbolic representations of rational numbers including whole number powers, square roots of perfect squares, and numbers written in scientific notation; demonstrate understanding of the relative values of rational numbers including whole number powers and square roots of perfect squares; demonstrate understanding of and use the distributive property and properties of addition and multiplication with rational numbers including integers (1.1.1, 1.1.2, 1.1.3)

 

NS02 (Ratio and Proportion) Demonstrate understanding of and apply the concepts of ratio, percent, and both direct and inverse proportion (1.1.4)

 

NS03 (Conceptual Understanding of Operations) Demonstrate understanding of the meaning of operations with rational numbers including whole number powers and square roots (1.1.5)

 

NS04 (Computation) Complete multi-step computations with combinations of rational numbers including integers, whole number powers, and square roots of perfect squares, using order of operations (1.1.6)

 

NS05 (Estimation) Identify when an approximation is appropriate; use estimation to determine the reasonableness of answers in situations involving multi-step computations with rational numbers including integers, whole number powers, and square roots (1.1.8)

 

Specific Item (Question) Specifications for Number Sense:

 

Students may be asked to:

a) tell when it is appropriate to round numbers or estimate - especially when working with

rational numbers (fractions and decimals)

 

b) estimate a computation using squares, square roots, and cube roots

 

c) determine when a result is reasonable by estimation

 

d) describe how estimation is used in a situation (using positive and negative integers, exponents, and square roots up of numbers up to 225)