PPT-Ratio, Rates, & Proportions

Ratios A ratio is a comparison of two numbers Example Tamara has 2 dogs and 8 fish The ratio of dogs to fish can be written in three different ways     Be careful with the . SPI 6.1.1 Predictions & Conjectures. SPI 6.2.6 Rates & Percents. What is a proportion?. A . proportion. is 2 equivalent ratios.. . Example. : . 6 . = . 3. 20 10. What is a ratio?. A . . Pythagoras (560-480 BC), the Greek geometer, was especially interested in the golden section, and proved that it was the basis for the proportions of the human figure. He showed that the human body is built with each part in a definite golden proportion to all the other parts.. Outline:. Ratios!. What is a Ratio? . How to Use Ratios? . How to Simplify?. . Proportions!. What is a proportion?. Properties of proportions?. How to use proportions? . Mysterious Problems…. . . Exploration Outline . Key Shifts in the 2011 New MA Curriculum Framework for Mathematics. Overview of the Model Curriculum Unit (MCU) Project. D. eep dive into a publicly released . Ratios. A . ratio. is a comparison of . two. numbers.. Example: Tamara has 2 dogs and 8 fish. The ratio of dogs to fish can be written in three different ways. ..  .  . ***. Be careful with the . UNIT 6. Math 7 Plus. So far we have looked at the following ways to use ratios to find unit rates as well as to help us find other equivalent ratios. . GRAPHING IN A COORDINATE PLANE. Best used to make predictions about equivalent ratios. Section 2-6. Goals. Goal. To find ratios and rates.. To convert units and rates.. Rubric. Level 1 – Know the goals.. Level 2 – Fully understand the goals.. Level 3 – Use the goals to solve simple problems.. Ratios. Comparison of two items/objects. Written one of 3 ways. As a fraction. With : (colon). . using word “to”. When writing a ratio. First thing you talk about is the numerator. Second thing you talk about is the denominator. 3/28/17. How do we write ratios?. How do we write and simplify rates?. How do we decide whether two ratios/rates are proportional?. Today We’ll Discuss. Definition:. The . ratio. of two numbers . Page 163. #1) Are the ratios proportional?.  . Cross multiply..  .  .  . YES. #2) Are the ratios proportional?.  . Cross multiply..  .  .  . YES. #5) A bubble solution can be made with a ratio of 1 part detergent to 8 parts water. Would a mixture of 56 . Difference Between Proportions. Sometimes we want to see if there is a significant difference between independent groups.. Control group vs. treatment group or placebo group. Men vs. women. Last year vs. this year. RATIOS. A . ratio. compares the magnitude (size) of two quantities. There are two types of ratios: part-part and part-whole.. RATIOS. A . ratio. compares the magnitude (size) of two quantities. There are two types of ratios: part-part and part-whole.. KWL – . Ratios and Rates. What you Know Want to learn What you learned. Chapter . 1 . Notes. Chapter . 1 . Notes. Ch. . 1 . EQs. Lesson 1: . How does finding the GCF help you to solve real-world problems? . Proportion – Learning Outcomes Express quantities as proportions of each other using fractions, decimals, ratios, and percentages. Divide quantities into a given proportion. Express errors as a proportion.