# The Black Death: Percents, Ratios, and Rates

As much as I love teaching math, sometimes wish I taught social studies.  History is so much fun!

In our 6th grade curriculum the students do a interdisciplinary project on the Middle Ages.  They study the Middle Ages in Social Studies, read period books and fairy tales in Language Arts, create Middle Age art, and even learn popular dances from the Middle Ages in dance class.  With all of the Middle Age fun coursing through the 6th grade, I could not be left out in math class!

The Land Of Matheval

I created “The Land of Matheval” for our Medieval Mathematics Unit.  Matheval was a fictional medieval community comprised of my 25 6th grade students.  I let all of my students pick a person from the Middle Age to become and research.  We were studying percents, ratios, and rates so I wanted to look at the percentages of the different classes of people of the Middle Ages.  To study rates, I decided to focus on the death rate of the Black Death across Europe.

Day 1:  Percent of the Population

When people think of the Middle Ages, they often think of Kings, Queens, and knights.  However, nobility was only about 1% of the population.  In our class we investigated the percentage of the Medieval population that was nobility (1%), monks and priests (5-10%), and commoners (90%).  We then took those percentages and applied them to our 25 6th graders to see how many of each class we would have. We had to do a little rounding and estimating so that we didn’t end up with half a person.  We ended up with 1 member of nobility, 1 monk and 1 priest, and 22 commoners.  The students were quite surprised that there was only one member of nobility among us!

I had the students draw their role from a hat to decide if they would be nobility, clergy, or common.  After drawing, we talked briefly about roles of commoners in the Middle Ages.  They had been discussing this in more depth in Social Studies so were already familiar with the roles.  The commoners got to pick a job.  For part of their homework, they were to enter their job and provide a brief description of their responsibilities on a Google Document that  I created.  I told them that since we were such a small community they could not duplicate jobs.

Day 3:  Estimate Your Chance of Survival

After they picked their roles I told them that we would be studying the Black Death.  I explained that many people in Europe died from the Black Death.  For part of their homework that night, they were to go onto their Google Docs and estimate their chance of survival according to the job that they had picked.  This was when the students realized it was NOT a good time to have picked being a rat catcher!

Day 4:  Rate of Death – The Black Death Arrives!

This day was one of those amazing teaching days that you wish you could have every, single day!  I arranged for the art teacher to dramatically interrupt our class to announce that the Pestilence had arrived!  What I didn’t know was that our art teacher was also the director of our school theatre productions OR that the social studies teacher would also join in the fun!  About five minutes into class, the art teacher exploded through our door screaming, “The Pestilence has arrived!” before dropping dead in our doorway.  She was then dragged out by their social studies teacher.  This was immensely entertaining and made QUITE an impression on my students!  With urgency, I told our students that our plans must stop at once today!  We needed to stop everything and learn more about THE BLACK DEATH!

We discussed the spread of the Black Death throughout Europe by analyzing graphs and charts I had on a Powerpoint.  We researched the population of Europe from 1347 to 1352 and discovered that 25 million people had died in 5 years.  We then calculated how many people died each year, each month, and each day!  As we continued on with our calculations, the numbers became more and more manageable (and thus realistic) for the students.  They wanted more, so we then calculated how many people died each hour and finally, how many people died each minute.

When the class was back, seated and winded, we discussed what had happened.  At hearing the Black Death was coming, what did all of my students do?  THEY RAN.  What happened to them anyway?  THEY ALL DIED.  But, what did they do in the meantime?  They spread the Black Death across the entire Woodlawn Campus!  We talked about how this was human nature, and many people in Europe probably reacted the same way that they did.  They fled, and they spread the Black Death.

I then opened the Google Doc and we looked at their estimated chance of survival.  After what we learned about the rate of death, we updated their percentages as a class.

It was a fantastic week, it was an amazingly fun lesson, and my students have not stopped begging for more activities like the Black Death!

## 16 thoughts on “The Black Death: Percents, Ratios, and Rates”

1. What a great cross-curricular activity. I can see why the kids loved it and are asking for more. You made the activities interesting and helped the students pull out the mathematics to help them understand the impacts on so many people.

Thanks for sharing!

2. Brilliant account of a great connection between subjects. Taking the math out of math and make it simply a study of experience and events. Very inspirational – thanks for sharing.

3. That is such an excellent example of making math real to your students. Keep up the good work.

Thank you for the post.

4. Thanks for the inspiration and for putting a little seed in my head of what’s possible. I teach high school math, but I can totally see this working.

5. Thanks so much for all of the positive feedback! I have always loved to do projects in math. But, this is the first year that I have started integrating math with the other subjects that the students are currently studying. I owe the thanks to the wonderful school where I teach. They promote interdisciplinary projects and the other teachers have been a great help to me. Teaching this way has added a whole new dimension to the math learning in my class. I think it helps put the math into focus for them so that they can relate to it. My goal is to do this for every unit, but as a 1st year middle school teacher I have not had enough time this year. I plan on adding so much more next year!