Directions. Grab your iPad Log in to edmodo Define the vocabulary terms (using Math Glossary App): Integer Absolute Value Watch the video to review these key terms. Lesson 1: Opposite Quantities Combine to Make Zero . Objectives
You should find these definitions in your Math Terms Glossary app.
These terms are considered background knowledge and need to be known in order to move on with lesson 1.
Which number is greater 1 or ?
Where do you begin when locating a number on the number line? Zero
What do you call the distance between a number and 0 on a number line? Absolute Value
What is the relationship between 7 and -7? They are opposites
Count up 5, count down 5, count down 4, count up 8 = 4
7, to the right
7, to the left
Teacher questions D-G
For all numbers 𝒂 there is a number –𝒂, such that 𝒂 + (−𝒂) = 𝟎.
The additive inverse of a real number is the opposite of that number on the real number line. For example, the opposite of −𝟑 is 𝟑. A number and its additive inverse have a sum of 0. The sum of any number and its opposite is equal to zero.