Showing posts with label word problems. Show all posts
Showing posts with label word problems. Show all posts

Tuesday, December 2, 2008

World Aids Day Word Problem

It is estimated that 8 out of every 10 deaths caused by AIDS occurs in sub-Saharan Africa. If 2 million people die from AIDS this year, how many are from sub-Saharan Africa?


Showing this cartograph from Worldmapper was the highlight of my day. I didn't emphasize the connection between the numbers from the problem and the map as much as I could have--we worked the problem above and then I put this on the board with a "What do you notice?" Even without spinning a whole lesson out of it, we had a decent discussion. While it's not something that shows as learning on standardized tests, it felt like this was the lesson that might stick with a few students.

Monday, October 27, 2008

Word Problems Before the Election

I like the idea of social justice math.

I have absolutely no training in it. I haven't found resources that can be lifted as is, though the previous link has several inspirational resources. Ideally, I'd customize ideas to my students, or better yet have them customize the ideas. Hasn't happened yet. 

My small compromise is to bring up issues in the warm-up journal word problems. This week's focus is the election. If you're looking for ideas, read on. (Though they will need adapting unless you're interested in South Dakota.)

For every 23 registered Republicans in SD, there are 25 people who are registered as something other than Republican. If there are 243,524 registered Republicans, how many people are registered as something else? (Link)

Proposition 11 is the state issue that will probably get the most national attention. (It’s the law that would ban abortion in the state.) An Argus Leader Media/KELO-TV poll showed a dead heat on Initiated Measure 11, the state's proposed abortion ban: 44% said they'd vote for it and 44% said they'd vote against it if the election were held immediately. It takes one more than half the voters to decide an election. If there are 508,240 registered voters in the state, how many more people does either side need to convince to win the election? (Link)

The poll about Measure 11 talked to 800 likely voters. If 12 % of people polled were undecided, how many people were undecided?

Most people in South Dakota have 6 weeks to vote early by stopping by their local courthouse. Saturday was the only day early voting was offered on the Rosebud Reservation. How many fewer days of early voting do residents of Todd county have than other people in the state? (Link)

In the last presidential election 149,244 South Dakotans voted for Kerry and 232,584 voted for Bush. If there were 508,240 registered voters in the state, what percentage of registered voters did not vote? (Link)

Friday, September 12, 2008

Yesterday's warm-up



It's based in fact. I don't know how much the elementary school really has, but I'm bracing for a sugar high as we let the classes have their candy. Time to go decorate floats.

Thursday, May 22, 2008

Word Problems

I knew I wanted to do some sort of warm-up this year. Finding one that worked was a bit more of a challenge. I finally settled into doing word problems. The requirement is that you have to show your work, write a complete sentence answering the question, and ask another question that could be answered from the information we have.

They're all handwritten on chart paper. I went through and typed most of them up. See them here if you need some sort of inspiration. (Or in your feedreader. It took me a bit to figure out how to get it up with blogger.) Warning that the quality of the problems vary.

I'm leaving the last warm-up word problem on the board. It's a reminder to myself of the situation here.

This year’s graduating class is 1/3 the size of this fall’s freshmen class. If we had 45 freshmen this year and assume that the seniors entered SFIS with a similar class size, how many students are not graduating this year?

Edit: Hrumph. Link not working yet. I'm leaving for my summer travels in the morning and need to pack. I'll update when I figure this out...