Unit 2
Expressions of Integers
Expressions of Integers
What's the opposite of North? What's the opposite of happy? What's the opposite of four?
If you want to find the opposite of a number, you reflect that number over zero on the number line.
If you want to find the opposite of a number, you reflect that number over zero on the number line.
If you want to find the opposite of a negative number, you do the same thing: reflect that number over zero on the number line.
Positives are the opposite of negatives.
Negatives are the opposite of positives.
Zero is the opposite of itself.
Negatives are the opposite of positives.
Zero is the opposite of itself.
As you can probably tell, zero is an important part of how we understand numbers. Numbers can be measured by how many jumps it takes to get to zero. We call this the absolute value of a number and we are going to learn about it in the next lesson.
Notebook:
Classwork & Homework:
-- EngageNY
State Test Practice:
California Standards:
CCSS.Math.Practice.MP7 Look for and make use of structure.
CCSS.Math.Practice.MP8 Look for and express regularity in repeated reasoning.
CCSS.Math.Content.6.NS.C.5
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
CCSS.Math.Content.6.NS.C.6.a
Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line; recognize that the opposite of the opposite of a number is the number itself, e.g., -(-3) = 3, and that 0 is its own opposite.
CCSS.Math.Practice.MP8 Look for and express regularity in repeated reasoning.
CCSS.Math.Content.6.NS.C.5
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.
CCSS.Math.Content.6.NS.C.6.a
Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the number line; recognize that the opposite of the opposite of a number is the number itself, e.g., -(-3) = 3, and that 0 is its own opposite.