# 7-NS2

Apply and extend previous understanding of multiplication and division of fractions to multiply and divide rational numbers.

a. Understand that multiplication is extended from fractions to rational numbers by requiring that operations continue to satisfy the properties of operations, particularly the distributive property, leading to products such as (-1)(-1) = 1 and the rules for multiplying signed numbers. Interpret products of rational numbers by describing real-world contexts. [7-NS2a]

b. Understand that integers can be divided, provided that the divisor is not zero, and every quotient of integers (with nonzero divisor) is a rational number. If p and q are integers, then

. Interpret quotients of rational numbers by describing real-world contexts. [7-NS2b]

c. Apply properties of operations as strategies to multiply and divide rational numbers. [7-NS2c]

Why is a negative number times a negative number a positive number?

ACOS 2009 Correlation
• 1.3 - Formulating algorithms using basic operations on fractions and decimals.
• 2.3 - Converting terminating decimals, repeating decimals, and percents to fractions and mixed numbers.
• 1 - Demonstrate computational fluency with addition, subtraction, multiplication, and division of integers.
• 1.1 - Formulating algorithms for performing operations on integers.
• 2 - Use order of operations to evaluate numerical expressions.
• 3 - Solve problems requiring the use of addition, subtraction, multiplication, and division on rational numbers.
• 3.4 - Identifying whether a number is rational or irrational.
• 3.5 - Using inverse properties of rational numbers with respect to addition and multiplication.

CMP2 Correlation
 Book Investigation Objective Accentuate the Negative 3 7-NS2 7-NS2a 7-NS2b 7-NS2c 4 7-NS2 7-NS2a 7-NS2c Bits & Pieces III 2 7-NS2c 3 7-NS2b 7-NS2c 7-NS2d

Resources

My Humble Opinion
Skills

Seems to be a more detailed description of the content to be taught regarding Integers (to include rational numbers). No new content.