In this video lesson we will learn the rules for adding rational numbers. We will apply the rules we have learned for adding integers. When adding the same signed rational values, we will add the absolute values and keep the sign. When we are adding different signed rational values we will find the absolute values, subtract the smaller from the larger, and the sum will have the same sign as the larger absolute value. Student Practice is embedded in the lesson with modeled exemplar solutions.
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Unit Resources: Rational Numbers - Grade 7
💙Lesson 1: Rational Numbers - What are they?
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💙Lesson 2: Review Operations with Decimals
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💙Lesson 3: Review Operations with Fractions
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💙Lesson 4: Adding Rational Numbers
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💚Shorts: Add 5 + (-1 1/3)!
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✴Lesson 4: Exit Ticket: Adding Rational Numbers
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💙Lesson 5: Subtracting Rational Numbers
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✴Lesson 5: Exit Ticket: Subtracting Rational Numbers
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❤Purchase Task Cards: Review - Classify, Add & Subtract Rational Numbers
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💙Lesson 6: Multiplying Rational Numbers
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✴Lesson 6: Exit Ticket: Multiplying Rational Numbers
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💙Lesson 7: Dividing Rational Numbers
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✴Lesson 7: Exit Ticket: Dividing Rational Numbers
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00:00 Introduction
00:26 Adding Rational Numbers with the SAME sign RULE
01:40 Let's Practice - SAME Sign RULE
03:50 Student Practice #1
05:50 Adding Rational Numbers with DIFFERENT signs RULE
06:58 Let's Practice - DIFFERENT Signs RULE
08:36 Student Practice #2
10:58 Take Notes - Write down the RULES!
Common Core Math Standards
Apply and extend previous understandings of operations with fractions.
7.NS.A.1 Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers; represent addition and subtraction on a horizontal or vertical number line diagram.
7.NS.A.1.D Apply properties of operations as strategies to add and subtract rational numbers.
