Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Monomials Multiplying Monomials Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Vocabulary –Shoot For The Stars 30 seconds • I got this! I know this word AND I could even teach it to somebody else. • I think I know this word, but I need more practice. • I am clueless! I have no idea what this word means. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Vocabulary • Monomials - a number, a variable, or both • a, 4x, or -6. • Constant – a number without a variable. • Coefficient – A number that is attached to the front of a variable. In the monomial, 5x the 5 is the coefficient. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Steps for Multiplying Monomials Step 1 – Write everything out in expanded form. Step 2 - Multiply the Coefficients. Step 3 – Re-write using exponents. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Multiplying Monomials Analogy How Do You Clean a Gun? 3 – Put it back together 1 - Take it apart 2 – Do what you gotta do to clean it. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Steps for Multiplying Monomials Step 1 – Write everything out in expanded form. Step 2 - Multiply the Coefficients. Step 3 – Re-write using exponents. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Multiplying Monomials When x like bases, you add the exponents. am • an = am+n. 1) a × a = a 2 10 12 2) w × w = w 5 5 3) q × r = qr 9 NOW YOU TRY 4) ( k 4 5 13 )( k ) = k 3 8 5) x × y = x y 2 2 2 2 If the variables are different, you can’t add them, just combine them. Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Multiplying Monomials If the monomials have coefficients, multiply those, but still add or combine the powers. 1) ( 4a )(2a ) = 8a 2 10 2) ( 7x ) (10w ) =70x 2 w10 9 4 13 3) ( 2r)(-3r ) = -6r 5 NOW YOU TRY 4) (3k 5) 6 )(7k ) = 21k (12x )(2y ) = 24x y 5 3 2 8 2 2 2 Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? COMMERCIAL BREAK “The trouble with not having a goal Is that you can spend your life running up and down the field and never score.” Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Multiplying Monomials These monomials have a mixture of different variables. Only add powers of like variables. 1) ( 4a b )(2a b ) = 8a b 12 7 2 5 10 2 2) (7w y )(10w y ) = 70w y 3 5 6 3 3) ( 2rt )(-3r ) = -6r t 5 4 3 3 3 8 4 7 4) (3k mn )( 7k m n ) = 21k m n 9 3 NOW YOU TRY 4 13 4 Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Think Pair Share What are the three steps to multiplying monomials? Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? GIST Summary Write three or four sentences in your own words which answer the essential question above… Essential Question: HOW IS MULTIPLYING MONOMIALS SIMILAR TO CLEANING A GUN? Assignment –Shoot For The Stars 30 seconds • I got this! I know how to do this AND I could even teach it to somebody else. • I think I know this, but I need more practice. • I am clueless! I have no idea what to do.