Monday 2018102229 Proportional Reasoning B A SSE A

Monday, 2018102229 Proportional Reasoning B. A. SSE. A. 2. Use algebraic structures to solve problems involving proportional reasoning in real world context. EQ 10: How do we use algebraic structures to solve proportional reasoning problems? Objective: Compare two different proportional relationships represented in different ways.

Monday, 20181029 Agenda Bridge Math Store your phones Find your seat Bellwork: Math Minutes Calculator Proportional reasoning problems/ Scale Factors Ø Exit Ticket: Factor Puzzle Ø Remain in seat until bell rings. Teacher Dismisses NOT the bell. Ø Ø Ø No Sleeping! Essential Questions 1. EQ 10: How do we use algebraic structures to solve proportional reasoning problems? Vocabulary: • Unit rates • Fractions • Solving Proportions • Ratios • Finding percent and calculating percent of a number • Determining constant of proportionality (slope) from tables of values, graphs, and algebraic relations • Interpreting constants of proportionality (slope) on a graph • Proportional Reasoning • Scale Factor It’s always a great day to be a Wolverine!

Bellwork: Monday. 20181029 Math Minute

Remember…. • A ratio is a comparison of two quantities by division. • A ratio compares part to part or part to whole. • A ratio can be written 3 different ways… n/d n: d or “n to d” or “n out of d” 5

Scale Factor • A scale factor is a number which scales, or multiplies, some quantity. • For example, doubling distances corresponds to a scale factor of two for distance, while cutting a cake in half results in pieces with a scale factor for volume of one half. The basic equation for it is image over preimage. • In the field of measurements, the scale factor of an instrument is sometimes referred to as sensitivity. • The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor.

Friday, 20181026 Proportional Reasoning B. A. SSE. A. 2. Use algebraic structures to solve problems involving proportional reasoning in real world context. EQ 10: How do we use algebraic structures to solve proportional reasoning problems?

Finding the Scale Factor of 2 figures • https: //www. youtube. com/watch? v=f. A 2 EZo. Y g. Mg. A

You may be asked to solve a problem where you are only given part of the information and have to “work backwards”, for example:

Make-up: Join. Quizizz. com EQ 10 Ratios and Proportions Goal is 90% or BETTER!

Get Ready for the EXIT TICKET!!!

EXIT TICKET Solve each proportion for x:

EXIT TICKET What is a ratio? A ratio is a comparison of two quantities by division. How do we represent a ratio. Name three ways. A ratio can be written 3 different ways… n/d n: d or “n to d” or “n out of d” When we write a ratio explain why order matters. Order matters. Whatever is mentioned first in the question is what goes first in the ratio. 18

Tidy Up- LEAVE WORK OUT Selected people will carry out the following tasks: • Collect felts and put back in box • Collect pencils and put back • Collect help sheets/ templates and put in middle of your table EVERYONE ELSE STAYS IN THEIR SEAT!!!!!!!