Group items tagged

"Since demolishing 78 traffic signals and installing 80 roundabouts, the northern Indiana city of Carmel has reduced the number of accidents by 40 percent and the number of accidents with injuries by 78 percent." There's a great lesson in here somewhere. I'm not sure of the exact structure for it, but here are some of my random thoughts. Let me know if you have others: Use Googlemaps and GoogleEarth in order to determine how many traffic lights are in a specific location in a county/city. Using the calculations in this article/video, how much could the county/city that you researched in Google maps have saved if they installed traffic circles rather than traffic lights. Extension - Research the number of accidents and injury/fatality stats for the area that you've researched. Using the calculations in this video/article, how many lives would traffic circles save in this area?

"Too often kids have trouble with word problems. Too often they don't know what to do with two numbers let alone a bunch of numbers. They guess at division when one number is big and one is small. They add when they see two fractions. They multiply because that was how they solved the last word problem. I will also do this with my 8th graders because I suspect they will have trouble too. And this is exactly the kind of trouble we need to get into. Now rather than later. This task gets them thinking about ratios - which is like the most important math thing in all of the math things." This is a short description of how to get your students developing questions for mathematical scenarios. This would be a great activity to work on if you feel like your students are having difficulty deciphering word problems or are stumped when presented with unfamiliar mathematical scenarios.

"How did Gladwell misconstrue it? Aside from not having copied the numbers from the actual paper correctly for his book? He says that there is a perfect correspondence between practice and the level of expertise a person attains. And you can't tell that from the paper. The 10,000 hours is an average of differences. You could have two people in any endeavor and one person took 0 hours and another took 20,000 hours, which is something like what happened with two high jumpers I discuss in the book. One guy put in 20,000 and one put in 0, so there's your average of 10,000 hours, but that tells you nothing about an individual. Now, Gladwell doesn't say there's no such thing as genetic talent. I think other writers are stricter than him. [Matthew Syed's] Bounce is a book that minimizes talent. Gladwell does say elite performers are more talented. One of the things that Ericsson criticizes Gladwell about is to say that 10,000 hours is some kind of rule. The paper just says that these performers by the age of 20, these performers have accumulated 10,000 hours but there's no where that says it's a magical number where that's when they become elite or anything like that. These people, by the time they go into their professional careers, have way more than that. That's just where they were when they're 20 as an average, not even to mention their individual differences."

"In 1972 Canadian scientists R.W. Sheldon and S.R. Kerr set out to reason out the number of monsters that occupy Loch Ness. Because the creatures are reportedly large and rarely seen, it follows that their numbers must be small. ("It has been suggested from time to time that as the monsters are never caught it must therefore follow that they do not exist. This is both irresponsible and illogical.")" Neat entry point for a math lesson.

I love that blog. Leads me to wonder how big a lake Godzilla would need.

For Will Berry

Hah. Awesome. Here are a few more specifically for middle school literature: 1. Divide the number of pages in your novel by the number of chapters it contains. The average should be equal to or less than your intended audience's age. 2. Determine the ratio of action verbs to any other verbs. If the ratio is less than 5:1, include more crazy twists and scenarios to keep the attention of your reader. And most importantly... 3. The number of characters in your novel that are either vampires, werewolves, or zombies should exceed that of all humanoid characters. If not, revamp your story to comply with current fad.

Although some of the lesson plans are relatively vague, this a pretty solid site overall. There are a number of lesson plans here that could be adapted to fit your specific unit/essential questions. The best thing about these lessons is that the lesson documents (PDFs) contain a wide variety of primary and secondary sources that you can use in a variety of ways. The Zinn Education Project is free to sign up for and use.

I saw this Dan Meyer TED Talk on re imagining Math through problem solving. I like how he takes a problem from the textbook and makes it more rigorous. "Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. In his talk, Dan Meyer shows classroom-tested math exercises that prompt students to stop and think. (Filmed at TEDxNYED.)"

"Okay, I may have done the math wrong. But whatever the number is, it's a bunch of very cool and useful Twitter feeds. Grab a couple or three of them and expand your Personal Learning Network."

Possible idea to encourage and celebrate student understanding of numbers/math

"Mathsframe has more than 170 free interactive maths games. All resources are designed, by an experienced KS2 teacher, to help children to visualise numbers, patterns and numerical relationships and to develop their mathematical thinking. New games are added most weeks." Some of these seem more appropriate for elementary school, but there are definitely some that could serve as quick review for our 6th-8th graders. You could have students use these games for several minutes individually in the class, or have students use a Promethean board/slate to interact with the game in front of the class and discuss their reasoning for the answers they select. This could be a great informal feedback tool that would take very little prep time.

This seems like a fun and interesting way to discuss/learn several different math topics. Here's a sample lesson plan that popped into my head when I saw this post: 1. Show to students a GoogleMap/GoogleEarth image similar to the one on the website, but more meaningful to you/them. For example, several different grocery stores around your house. 2. Ask the students, "Which one should I go to?" Have the students justify their answers using the image and mathematical topics that they have learned up to this point. 3. With appropriate questioning you could work in several mathematical topics here (I know I'm missing others as well…) a. Overlay a grid on the GoogleMaps and have the students give each of the locations points on an x,y axis. Use this information to determine distance. Have a conversation if this is the best way to determine which location is easiest to access. When students start to bring up the fact that even though some points are technically closer, but could be slower to get to, bring in… b. Rates, ratios, etc. Discuss how fast you could possibly travel on each route according to number of stop signs, streetlights, speed limit etc. Have students use this information to calculate the appropriate answer.

Kagan Structures are instructional strategies designed to promote cooperation and communication in the classroom, boost students' confidence and retain their interest in classroom interaction. The Structures work in all teaching contexts-regardless of subject, age group, and number of students in class.

Kagan Structures are instructional strategies designed to promote cooperation and communication in the classroom, boost students' confidence and retain their interest in classroom interaction. The Structures work in all teaching contexts-regardless of subject, age group, and number of students in class.

I've never been a huge baseball fan, but I do like data. This interactive display shows the total expenditure of every Major League Baseball team (from 1998 out until a few years in the future). Clicking on a team in the top chart will break that expenditure down per player and show what each player makes per year. Just looking at this chart for a few minutes, I've come up with the following questions that could be used in a math class for a problem solving lesson. Some of these questions would also require the students to locate some additional data as well. * Is there a correlation between team expenditure and winning the Championship/making the playoffs/number of wins in a season? * What percent of a team's total expenses do "star players" take up? * Are star player's "worth it" for a baseball team? * How have team expenses changed over the past 15 years? * Are baseball players being paid more today than in the past or are their salaries just keeping up with inflation? * How much do today's baseball stars make in comparison to the stars of the late 90's and early 00's? Is this difference warranted? I'm sure there are plenty of better questions here that I'm missing.

"In my honors Algebra II class of sophomores, I always look forward to doing a culminating project on quadratics.  We start at the beginning of the chapter with introducing the project and having the kids break up into groups of 3 and 4 and start designing and building a catapult outside of school.  " This seems like a fun activity that could be enchanced by Logger Pro and/or Desmos (www.desmos.com). Logger Pro would allow the students to video a sample shot of their catapult and then break down the distance of their shot at specific intervals/times. Desmos would allow the students to graph the quadratic and place their catapult at the correct location in order to hit their target.

Real time data visualizations provide kids with real world connections to what they know and recognize. They pique their curiosity; that's their power. As with other visual content, there are a host of possibilities for using them in the classroom to demonstrate the strength numbers have on perception and success.