PPT-Multiplying and Dividing Integers

TeacherTwins2014 Warm Up Add or subtract 1 2 3 4 5 Explain how to change the following problem to an addition problem and solve   6 11 6 11 Leave change opposite 9 9 18. adding, subtracting, multiplying, and dividing. If the signs of both numbers are alike, (both positive or both negative) add the two numbers and keep the same sign as in the original problem.. Example: -4 + -8 = -12. Essential Question: How do we multiply integers? How do we divide integers?. Multiplying Integers . The product of two integers with the same sign is positive.. The product of two integers with different sign is negative.. MAFS.3.OA.3.7. Lesson Opening. Solve the two problems below. Write the equation you used to solve the problem.. Jason ate 2 bags of candies. Each bag contained 9 candies. How many candies did Jason eat?. Students who cannot easily memorize rules tend to not do as well in math.. Students who can memorize rules tend to do better in math, but do not always understand HOW or Why the math works. . What are some rules that we teach students?. 3/23/17. How do we multiply and divide fractions and mixed numbers?. How do we use models to multiply and divide fractions?. How do we estimate products and quotients of fractions?. Today We’ll Discuss. http://. www.youtube.com/watch?v=m94WTZP14SA. Colin . Dodds. - Number Types (Math Song) . top. bottom. a. bove sea level . increase. decrease. below sea level . . Positive and Negative Integers. A. Students will be able to use integers to represent the velocity and the speed of an object as evidenced by . the class discussion after watching a short video.. https://www.youtube.com/watch?v=M9NBZJR5tyo. Made Easy!. My momma. says I should “change” my shirt before she “flips” her lid!. © . Mike’s Math Mall. Using…. CCSS 5NBT.B.7. keep. Change!. Flip!. Because with a little change to a division of fractions’ problem, you’ll be right back to multiplying!. SOL A.2b. REVIEW. Represent . Polynomials Using Algebra . Tiles. Represent x. 2. 3. 2) Represent x. 2. 4x – 2. . REVIEW. Represent . Polynomials Using Algebra . Tiles. 3) Represent 3x. 6.2.1 Multiplying Fractions. 6.2.2 Dividing Fractions. 6.2.3 Dividing Mixed Numbers. Multiplying Fractions. Step #1. : Multiply across the . top. of both fractions. Step #2. : Multiply across the . bottom.  . Can you name the parts of a fraction?. ?. ?. numerator. denominator. What sort of fractions / numbers are these:.  .  .  . ?. ?. ?. p. roper fraction. improper fraction. m. ixed number. Multiplying Fractions. Gaussian Integers and their Relationship to Ordinary Integers Iris Yang and Victoria Zhang Brookline High School and Phillips Academy Mentor Matthew Weiss May 19-20th, 2018 MIT Primes Conference GOAL: prove unique factorization for Gaussian integers (and make comparisons to ordinary integers) Multiplying and Dividing Fractions This session will be recorded for learning purposes.  Learning purposes include: a lesson review for students who are absent, students who want to review for a test, etc. Slides 13-15: . Workbook Introduction Problem p. 55 . Slide 16: . Workbook Practice. . p. 57-58. Multiplying Multi-Digit Numbers. Enhanced Learning Task. What do we know?. . What do we need to find?.