8th grade reading & vocabulary
Let’s talk about quantitative evidence. How can a chart or a graph improve an argument? What's the most efficient way to describe information? How can I convince the neighborhood council to ban peanuts at the bake sale? Let's try to answer those questions the only way I know how: with made-up charts and the world's oldest GIF. Created by David Rheinstrom. Created by David Rheinstrom.
Want to join the conversation?
- who here is allirgik to nothing(22 votes)
- david your the best(14 votes)
- Thanks for the video Mr. Rheinstrom. I was wondering how many videos you made for Khan Academy, and how long you've worked for them? Do you only handle English, or also do Math? Thanks, - Micah Hawkins(10 votes)
- Hey there! David has made many many videos for Reading and Language Arts, you can find it here:
For math, the founder of this site, Sal Khan, is the teacher of math. You can find it all here:
PRE-K TO 8TH GRADE: https://www.khanacademy.org/math/k-8-grades
GENERAL MATH: https://www.khanacademy.org/math
MATH: GET READY COURSES: https://www.khanacademy.org/math/get-ready-courses
Here are some other information for courses:
Sal = Science
Multiple different teachers = Arts & Humanity (aka, history)
Sal = Economics
Sal + I believe some other people/students? = Life Skills
There are other courses too, like Coding and SAT Preps.
TO VIEW ALL COURSES TO SEE YOUR OPTIONS: Just go to your Khan Academy main screen (Log in first). Normally, the big old "COURSES" sign is near the top left. Click on that, there's a big drop down menu that has all the courses Khan Academy offers.
So there, I hoped that helped. Sorry that this was 8 months late, but I hope it helps you still!
Have a great day :)(11 votes)
- If someone has aquagenic urticaria.Does that mean they can never shower?(11 votes)
- I mean, I suppose they just shower and deal with being itchy or they use something like cold cream or a kind of treated tonic water.(4 votes)
- Which type of graph is proven to be the most persuasive graph, if you follow?(8 votes)
- I think bar graphs are more persuasive. Pie charts can't show changes over time, which does not make it more efficient and persuasive. Bar graphs, however, can show changes over time and this makes it more efficient.
Sorry for being a month long from answering this, but I hope this helps!
Have a great day!(4 votes)
- [Instructor] Hello, readers. Today we're going to talk about quantitative information in texts, but I want to start with a question. What's the best way to describe the way a horse looks as it runs? What's the most efficient way? I guess I could just use words, right? The horse pushes off with its back legs and then its front legs come up, and as the horse propels itself forward, both its back and front hooves are off the ground at the same time as it gallops. It's like a series of jumps. Listening to myself say that, it doesn't feel very clear to me. At least it's certainly less clear than this moving image of a galloping horse. Sometimes the most efficient way to express information is to present it visually, to see it in order to best understand it. And so we're going to talk today about graphs and charts, your friends and mine. This video is no longer about horses. I apologize if I gave that impression. I did give a pretty obvious title when I said quantitative information in texts. But to those of you who I've misled, I'm sorry. Now, graphs are one of many ways we can make visual representations of data, information you can see, news you can use. And I guess a question that follows from that is why do it? Why make a graph and a chart? What does that have to do with writing? Well, visualizing data can make an argument stronger. Let's say my neighborhood is having a bake sale to raise money for, I don't know, a carnival. And some of my neighbors have peanut allergies, so I want to write to the neighborhood council to say let's make sure that the baked goods don't have peanuts in them so the whole neighborhood can participate without fear of having an allergic attack. That's supposed to be a peanut. I realize it kinda looks like a dog treat, but let's pretend that's a peanut. Now, good readers know that data is important to informational text, so as a writer, I wanna make sure that I'm backing up my claims with a chart. Here's the text of the letter I'd send to my neighborhood council: Dear Neighborhood Council, I'm writing to ask that you officially ban peanuts and tree nuts from the baked goods on offer during our upcoming carnival bake sale. Over a fifth of residents surveyed reported some kind of food allergy. Please see attached graph. If we want to have their full participation in this fundraiser, we cannot permit foods that will send them to the hospital. All my best, David. Now, let's take a look at that graph. These are made-up numbers in a made-up situation. But let's say I interviewed 50 of my neighbors, and 40 of them here report no allergies, but 10 of them do. So we can have this bar graph that breaks down those allergies by type. One person is allergic to strawberries. Two people are allergic to peanuts. Four people are allergic to tree nuts, like pecans or walnuts. And three people have multiple food allergies. And then we have this bar here that shows all the folks that don't have food allergies. That's the other 40. To put it another way, here's a pie chart of that same data set showing just how many people in the neighborhood have allergies in total. It's just a different way of looking at it. This is all the same data, but we can see that the percentage of people surveyed who have allergies adds up to 20% of the total. Something that's in the letter but not the graphs is the idea that these are very serious allergies. If the wrong person ate a peanut, they could have a medical emergency. If the council were to look at just the graph alone, they might say, "Eh, it's not that many people. "Peanuts are great, let's include them." But combined with the text, the stakes become more clear. And they may better understand the consequences of having nuts at the bake sale. And something that's in the graph that isn't in the letter is the breakdown of allergies by type. Maybe the council could decide that the one person with a strawberry allergy is an acceptable risk and that strawberry baked goods are kind of obvious-looking and easy to avoid in a way that brownies with walnuts in them aren't. This visual information allows the neighborhood council to get my point more efficiently than just the words alone. It helps me express a sort of complicated idea that peanuts and other allergens in the bake sale might constitute too much of a risk to my neighbors and that they shouldn't be allowed. Now, there are other questions like is this a representative data set? But that's a question that can be better answered by our statistics course. For now, think about it this way. As a reader, your job is to look at everything that is on the page, not just the text. Then think about what both the data and the words do for your understanding. Data and informational text are two great tastes that go great together. One can support the other and vice versa, you know, like chocolate and peanut butter. Oh, no, sorry, bad example, like chocolate and sunflower butter. You know what I mean. You can learn anything, David out.