Day 36: Ratios Quiz

6th Grade Math Standards: 6.RP.1 Understand the concept of a ratio and use ratio language to describe a ratio relationship between two quantities. For example, “The ratio of wings to beaks in the bird house at the zoo was 2:1, because for every 2 wings there was 1 beak.” “For every vote candidate A received, candidate C received nearly three votes.”

6.RP.2 Understand the concept of a unit rate a/b associated with a ratio a:b with b ≠ 0, and use rate language in the context of a ratio relationship. For example, “This recipe has a ratio of 3 cups of flour to 4 cups of sugar, so there is ¾ cup of flour for each cup of sugar.” “We paid $75 for 15 hamburgers, which is a rate of $5 per hamburger.”

The Learning Objective: Write a ratio three ways; find a ratio and put it in simplest form; find a unit rate in a real-world context

Quote of the Day: “Cooperative behavior requires individuals to understand that by working together they will be able to accomplish something that no one can accomplish on his or her own. Jim Vesterman considered himself a reasonably good team player, yet he learned an indelible lesson in the power of group effort when he joined the Marine Corps. It started on his first day of boot camp at Parris Island as he and his fellow recruits learned to make their beds. His experience went something like this: the men are told that their objective is to have every bed in the platoon made; the drill instructor begins counting, and everyone has three minutes to make his bed (‘hospital corners and the proverbial quarter bounce’); they step back in line when done. So, Jim explains, he made his bed, stepped back in line, and felt ‘pretty proud, because when three minutes were up, there weren’t more than ten men who had finished.’ However, the drill instructor wasn’t handing out any congratulations; rather, he was shouting out that they had all day to get this right, looking at all the beds that were unfinished. Jim ripped off the sheets again… and again, and again. Finally the drill instructor looked him in the eye and pointed out, ‘Your bunkmate isn’t done. What are you doing?’ Apparently Jim had been thinking that he was done while his bunkmate struggled. Finally the light dawned on Jim, and working together with his bunkmate, they made both beds, and much faster than they had each done on his own.” – Barry Posner

Question from Yesterday (as always from a student):   In 2018, Mrs. Buxton expects to sign up for Instagram. Assuming she gets 45 likes 2 minutes after her photo has been posted and that Mr. Brazille has 98 likes after 12 minutes, which photo is getting more likes per minute? 

On this question, students were asking what to round to. We went over the fact that it's fairly obvious who has more likes and once the work has demonstrated who has more, there's no need to even get into the decimals.

Assessment: The quiz; the weekly quiz

Agenda:

1. Quote/Star Student/Question of the Day
2. Take the quiz
3. Work on the WQ #5

Glass-Half Full: I was really happy with the success we had in highlighting ratio words to solve the last two problems on the quiz. In general students were putting the units in the order that was given in the problem, so reading comprehension was strong.

Regrets: It was a hard quiz and the hardest question was problem five. Overall though I was elated with their effort on this quiz and I thought that the time we had to prepare for it and the way in which we prepared to it is something that I would repeat in the future.

Link of the Day: This is from 2006 and was I found it through Dan Meyer's blog. Everything written is still true.