Aim: How can you find whether two ratios are equivalent or whether one ratio is more favorable?
Homework: Happy Halloween!
Solve each without using cross multiplication.
1. 2/7 = x/84 2. x/9 = 5/6 3. 8/13 = 12/x
Classwork: Ratios can help your decide which situation is more favorable for you. We looked at situations that involved sharing food to help make decisions on which option would yield the greater amount of food. Students needed to set up ratios and either scale up or down to make equivalent ratios for the comparison.
Aim: How can we assess our Unit 2 understanding
Homework: Enjoy your weekend.
Clear everything from your desk except for a pencil and a calculator.
Classwork: Unit 2 Quiz 1
Aim: How can we prepare for tomorrow's quiz.
Homework: Prepare for tomorrow's quiz
Why is it important to understand whether you are using a part-part ratio or a part-whole ratio?
Classwork: After reviewing the previous night's homework in detail, students worked in their collaborative partnerships on problems that required proportional reasoning.
Announcements: QUIZ TOMORROW
Aim: What strategies can you use to find the missing value in a proportion?
Homework: Textbook p.25 #19-22
Do Now: The ratio of doctors in the U.S. is about 12 men to 5 women. If about 600,000 American doctors are men, how many are women?
Classwork: We investigated proportional reasoning and how it can be used, in conjunction with scaling, to solve problems.
Announcements: There will be a quiz this Friday, October 28. This quiz will cover comparison statements, ratios to solve problems, and proportions.
Aim: What are some issues created by scaling up or scaling down a recipe?
Homework: Textbook p.23-24, #13-18
Do Now: Compare and contrast the ratios:
2 cups of concentrate to 3 cups of water 2 cups of concentrate to 5 cups of juice
Classwork: Today's class examined the difference between part-to-part ratios and part-to-whole ratios and how they are used when making comparisons.
Announcements: There will be a quiz this Friday, October 28. It will cover the work we've done so far with comparison statements, using ratios to solve problems, and proportions.
Aim: What strategies do you use to determine which mix is more orangey?
Homework: Unit 2 - Finish Problem 1.2
Do Now: Use the following data to make three different statements comparing them.
In a survey, 75 people prefer chocolate and 25 people prefer vanilla.
Classwork: Many people buy orange juice from the store in a pre-made bottle. Another option for orange juice is to buy semi-frozen cans of concentrate and to mix them with cans or water to produce juice. We looked at different orange juice recipes and used our understanding or ratios to make predictions as to which one will be most orangey--that is, which will have the strongest orange flavor.
Aim: What do different comparisons of quantities tell you about their relationships?
Homework: Txtbk pp.19-20 #1-5
1. 40% of 150
2. What percent is 100 of 250?
3. 25 is 30% of what number?
Classwork: Today built on the idea of ratios as comparison statements. Students investigated a soda survey situation and say different ways to express the results of the survey. We discussed the usefulness of each method, particularly when a company uses statistics to persuade people to purchase a specific project.
Aim: How can we prepare for Unit 2?
Do Now: Please take out your Unit 1 textbook to be collected.
Classwork: We swapped out our old textbooks for the unit 2 textbooks. Students also created their individual portfolios which will house key pieces of work from the year. When we were finished, we worked on a Ribbon and Bows task to expose students to performance tasks and the way they are graded with rubrics.
Aim: How can we assess our unit 1 skills?
Homework: Portfolio Writing Task - Select two pieces of work, writing a paragraph on each about how they demonstrate progress you've made in this unit.
Do Now: Fill out the scantron and clear your desk of everything besides a pencil.
Classwork: Unit 1 Exam