ALGEBRA MAGIC STANDARDS 7.EE.1 Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients. 7.EE.2 - Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related. DIRECTIONS 1.Think of a number DIRECTIONS 2.Square it DIRECTIONS 3.Add the result to your original number DIRECTIONS 4.Divide by your original number DIRECTIONS 5.Add 15 DIRECTIONS 6.Subtract your original number DIRECTIONS 7.Divide by 2 Grab a partner Check your partners math QUIETLY PLEASE! PARTNER UP Did you and your partner get the same answer? PARTNER UP What was it? 8 PARTNER UP HOWD I KNOW THAT? A magician never reveals his secrets Luckily, its not magic at all You can do it too You can make it equal any number in the world! DOES IT ALWAYS WORK? PARTNER BACK UP With your partner, try to deduce why this works for any number Try to come up with your own magic trick WHATS THE MATH LOOK LIKE? 1.Think of a number WHATS THE MATH LOOK LIKE? 2.Square it WHATS THE MATH LOOK LIKE? 3.Add the result to your existing number WHATS THE MATH LOOK LIKE? 4.Divide by your original number WHATS THE MATH LOOK LIKE? 5.Add 15 WHATS THE MATH LOOK LIKE? 6.Subtract your original number WHATS THE MATH LOOK LIKE? 7.Divide by 2 LETS LOOK AT IT MORE CLOSELY LETS FOCUS UP TOP SO NOW THIS BECOMES THIS ASSOCIATIVE PROPERTY NOW YOU TRY IT! Create a magic trick like this on your own RULES Must be at least 6 steps long One step must include squaring the original number This will eliminate any x x + 1 = 3 responses
