Скачать или смотреть How to Divide Rational Numbers in Decimal Form | Grade 7 Math | 7.NS.A.2 💚

In this math video we will learn how to divide rational numbers in decimal form. We will review the vocabulary terms dividend, divisor and quotient. You will see a visual model of these terms as they are used in long division. I will introduce you to five steps to divide rational decimals, as well as a graphic organizer to support your success! You will experience four practice problems - positive divided by positive, positive divided by negative, negative divided by positive, and negative divided by negative. You will learn everything from setting up long division, moving the decimal point to create a whole number divisor and how it affects the dividend. We will also review the same and different signs rule that determine the sign of the quotient. Exemplar solutions are modeled and explained.

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00:00 Introduction
00:16 Lesson Objective & Essential Question
00:51 Vocabulary - dividend, divisor, & quotient
02:07 Five Steps to Divide Rational Numbers
03:35 Graphic Organizer to Divide Rational Numbers
03:50 Student Practice #1
06:37 Student Practice #2
09:37 Student Practice #3
11:44 Student Practice #4
13:27 Wrap Up

Grade 7 Common Core Math
The Number System
Apply and extend previous understandings of operations with fractions to add, subtract, multiply, and divide rational numbers.
7.NS.A.2 Apply and extend previous understandings of multiplication and division and of fractions to multiply and divide rational numbers.
7.NS.A.2.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.NS.A.2.b Understand that integers can be divided, provided that the divisor is not zero, and every quotient of integers (with non-zero divisor) is a rational number. If p and q are integers, then –(p/q) = (–p)/q = p/(–q). Interpret quotients of rational numbers by describing real- world contexts.
7.NS.A.2.c Apply properties of operations as strategies to multiply and divide rational numbers.
7.NS.A.2.d Convert a rational number to a decimal using long division; know that the decimal form of a rational number terminates in 0s or eventually repeats.

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