Tag Archives: algebra

The poetry of ancient math

Mathematics and poetry are more connected than most of us realize. A July 3, 2025 article by Ev Crunden for the University of Pennsylvania’s Omnia magazine (a shorter version dated August 19, 2025 can found here) describes the intersection between mathematics, poetry, and ancient India,

Add zero and one to get one, one and one to get two, one and two to get three, two and three to get five. Most of us know this—that each successive number is the sum of the two numbers that came before it—as the Fibonacci sequence, named after a 12th-century Italian mathematician. But as early as 200 BCE, an Indian poet and mathematician named Acharya Pingala used that sequential concept to analyze poetry, and 7th-century scholar Virahanka later described it in more detail.

In fact, the use of math on the Indian subcontinent stretches back more than 3,000 years, and curiosity about this ancient and understudied history is at the center of Priya Nambrath’s research. As a fifth-year doctoral candidate in the Department of South Asia Studies, Nambrath is studying the applied practice of mathematics during medieval and premodern times in what is now Kerala, a state in southwestern India.

It’s “a deeply grounded and long-lasting mathematical tradition,” she says, one in which people drew on local religious and metaphysical themes, as well as the rhythm and structure of Sanskrit poetry. In the process, they uncovered many ideas and approaches long before Europeans did—discoveries that go largely underrecognized: “For the most part,” Nambrath says, “even students in India are not taught this aspect of cultural and intellectual history.”

Initially, Nambrath planned to dig into the topic independently. Ultimately, however, she realized she needed more academic support, “not just in the methodologies of Indian mathematics, but also in the literary and social histories of the region,” she says. …

“This research involved a lot of time spent in several different archives and dealing with different categories of archival material,” she explains. From December 2023 to September 2024, Nambrath visited manuscript libraries in India, where she identified a few mathematical texts that had not been previously studied or translated. Those texts provided insights into “a medieval system of pedagogy,” Nambrath says, one that incorporated local approaches to mathematics.

She also found that European colonial scholars struggled to completely understand Indian math. One stumbling block, she observed, was cultural prejudice and a sense of mathematical superiority. But Nambrath surmises they may also have been flummoxed by how different it was from anything they’d encountered, something she ran into herself. “My STEM [science, technology, engineering, and mathematics] background had encouraged me to think of mathematics as a kind of universal language, not susceptible to cultural and historical nuance like art, music, and literature,” she says. “But what I was seeing in Indian mathematical texts convinced me otherwise.”

Besides the close links with poetry, mathematical progress was sometimes driven by the precise requirements of ritual practice, and advancements in astronomy were often motivated by the needs of astrology. These efforts resulted in unique modes of mathematical expression, according to Nambrath.

One example is the kuṭṭākāra method, which Nambrath says translates to “the pulverizer,” or the idea of reducing or grinding something down. The method is actually an algorithm that helps to solve what we now call linear Diophantine equations. Those take the form ax + by = c, with x and y representing unknown quantities, and the other letters representing known quantities. Through the kuṭṭākāra method, coefficients in this type of equation are broken up into smaller numbers to make it easier to find a solution.

The kuṭṭākāra method has some similarities with modern computational algorithms, but it first appeared in a 5th-century text, the Āryabhaṭīyam, with many other Indian mathematicians building on it over the years. The text is a treatise written in Sanskrit verses, using what Nambrath describes as an obscure system of word-numerals—that is, consonants representing digits, vowels denoting place value.

“We think of sciences and the humanities as embodying some kind of essential disciplinary binary,” she says. “But here I was, encountering mathematical ideas and techniques encased in metrically precise and linguistically lush poetry.”

Nambrath, who is aiming to graduate next year, is now deep into writing her dissertation, along with developing a module for the Penn Museum that links artifacts in their Egyptian, Babylonian, and Greek galleries with the mathematics practiced by those cultures. Museum visitors should be able to see the result this fall [2025].

And though that activity is a side project, Nambrath says it’s bringing her research full circle. “It gives me a much more holistic view of how humans across time and geography have wrestled with mathematical problems,” she says. “These approaches can be unique, but they are always logical, and it is fascinating to see how grounded they are in culture and custom.”

I found more about mathematics and poetry in an April 12, 2023 post (it’s an excerpt from Sarah Hart’s 2023 book, “Once Upon a Prime: The Wondrous Connections Between Mathematics and Literature”) published on the Literary Hub

The connections between mathematics and poetry are profound. But they begin with something very simple: the reassuring rhythm of counting. The pattern of the numbers 1, 2, 3, 4, 5 appeals to young children as much as the rhymes we sing with them (“Once I caught a fish alive”). When we move on from nursery rhymes, we satisfy our yearning for structure in the rhyme schemes and meter of more sophisticated forms of poetry, from the rhythmic pulse of iambic pentameter to the complex structure of poetic forms like the sestina and the villanelle. The mathematics behind these and other forms of poetic constraint is deep and fascinating. I’ll share it with you in this chapter.

Much more sophisticated mathematical problems have been expressed in verse, though. As I mentioned in the introduction, it was the standard format for mathematics in the Sanskrit tradition. The twelfth-century Indian mathematician and poet Bhaskara wrote all his mathematical works in verse. Here is one of the poems in a book he dedicated to his daughter Lilavati:

Out of a swarm of bees, one fifth part settled on a blossom of
Kadamba,
and one third on a flower of Silindhri;
three times the difference of those numbers flew to the bloom
of a Kutaja.
One bee, which remained, hovered and flew about in the air,
allured at the same moment by the pleasing fragrance of
jasmine and pandanus.
Tell me, charming woman, the number of bees.

What a lovely way to write about algebra!

We don’t tend to write our mathematics in verse nowadays, more’s the pity, but the aesthetic link with poetry remains: the goal of both is beauty, a beauty that makes a virtue of economy of expression. Poets and mathematicians alike have praised each other’s specialisms. “Euclid alone has looked on Beauty bare,” wrote the American poet Edna St. Vincent Millay in a 1922 sonnet paying homage to Euclid’s geometry.

For the Irish mathematician William Rowan Hamilton, both mathematics and poetry can “lift the mind above the dull stir of Earth.” Einstein is reported to have said that mathematics is the poetry of logical thought. A mathematical proof, for example, if it’s any good, has a lot in common with a poem. In both cases, each word matters, there are no superfluous words, and the goal is to express an entire idea in a self-contained, usually fairly short, and fairly structured way.

The resonances between poetry and mathematics were expressed well by the American poet Ezra Pound in The Spirit of Romance (1910): “Poetry is a sort of inspired mathematics, which gives us equations, not for abstract figures, triangles, spheres and the like, but equations for the human emotions.” Pound made another analogy between mathematics and poetry—the way that both can be open to many layers of interpretation. I would say that mathematicians have a very similar understanding of what makes the greatest mathematics: concepts that hold within them many possible interpretations—structures that can be found in different settings and so have a universality to them.

Sarah Hart

Sarah Hart is a respected pure mathematician and a gifted expositor of mathematics. When promoted to full Professor of Mathematics at Birkbeck College (University of London) in 2013, she became the youngest STEM professor at Birkbeck and its first ever woman Mathematics Professor and one of only five women Mathematics Professors under the age of 40 in the United Kingdom. Educated at Oxford and Manchester, Dr. Hart currently holds the Gresham Professorship of Geometry, the oldest mathematics chair in the UK. The chair stretches back in an unbroken lineage to 1597. Dr. Hart is the 33rd Gresham Professor of Geometry, and the first woman ever to hold the position.

A classic story and mathematics

Years ago I was surprised to find out that “Alice in Wonderland” by Lewis Carroll held a lot of mathematical concepts. You can find more about those concepts in a December 16, 2009 article by Melanie Bayley for New Scientist, Note: A link has been removed,

What would Lewis Carroll’s Alice’s Adventures in Wonderland be without the Cheshire Cat, the trial, the Duchess’s baby or the Mad Hatter’s tea party? Look at the original story that the author told Alice Liddell and her two sisters one day during a boat trip near Oxford, though, and you’ll find that these famous characters and scenes are missing from the text.

As I embarked on my DPhil investigating Victorian literature, I wanted to know what inspired these later additions. The critical literature focused mainly on Freudian interpretations of the book as a wild descent into the dark world of the subconscious. There was no detailed analysis of the added scenes, but from the mass of literary papers, one stood out: in 1984 Helena Pycior of the University of Wisconsin-Milwaukee had linked the trial of the Knave of Hearts with a Victorian book on algebra. Given the author’s day job, it was somewhat surprising to find few other reviews of his work from a mathematical perspective. Carroll was a pseudonym: his real name was Charles Dodgson, and he was a mathematician at Christ Church College, Oxford.

The 19th century was a turbulent time for mathematics, with many new and controversial concepts, like imaginary numbers, becoming widely accepted in the mathematical community. Putting Alice’s Adventures in Wonderland in this context, it becomes clear that Dodgson, a stubbornly conservative mathematician, used some of the missing scenes to satirise these radical new ideas.

One last thing, there’s more poetry/math at JoAnne Growney’s Intersections — Poetry with Mathematics blog.

Enjoy!

Merry 2024 Christmas (1 of 2) High school students discovered a new way to prove Pythagoras’ theorem

I was very thankful to stumble across this story: Calcea Johnson and Ne’Kiya Jackson who are now in university, have found more ways to solve the theorem but this October 28, 2024 news item in ScienceDaily starts with their first breakthrough,.

In 2022, U.S. high school students Calcea Johnson and Ne’Kiya Jackson astonished teachers when they discovered a new way to prove Pythagoras’ theorem [Pythatgoran Theorem] using trigonometry after entering a competition at their local high school. As a result, both students were awarded keys to the city of New Orleans, and even received personal praise from Michelle Obama.

Today [October 28, 2024?] they become published authors of a new peer-reviewed paper detailing their discoveries, published in the journal American Mathematical Monthly.

Caption: Ne’Kiya Jackson (left) and Calcea Johnson (right). Photo credit: Calcea Johnson

An October ?, 2024 Taylor & Francis Group press release (also on EurekAlert and published October 28, 2024), which originated the news item, discusses how Jackson and Johnson independently of each other solved the theorem and then worked together to develop more solutions to the theorem,

Pythagoras’ famous 2,000-year-old theorem, summarized neatly as a2+ b2= c2, means that you can work out the length of any side of a right-angled triangle as long as you know the length of the other two sides. Essentially, the square of the longest side (the hypotenuse) is equal to the squares of the two shorter sides added together.

Many mathematicians over the years have proved the theorem using algebra and geometry. Yet proving it using trigonometry was long thought impossible, as the fundamental formulae of trigonometry are based upon the assumption that the Pythagorean Theorem is true – an example of circular reasoning.

Nevertheless, both Johnson and Jackson managed to solve the math problem independently of each other and prove Pythagoras’ theory without resorting to circular reasoning — a feat that has only been managed twice previously by professional mathematicians.

Johnson and Jackson then collaborated to share their work at a regional meeting of the American Mathematical Society in Atlanta in March 2023. Encouraged by their reception, Jackson and Johnson then decided to submit their discoveries for final peer review and publication. Their study outlines five new ways of proving the theorem using trigonometry, and a method that reveals five more proofs, totaling ten proofs altogether. Only one of these proofs was previously presented at the conference, meaning that nine are totally new.

“I was pretty surprised to be published” says Ne’Kiya Jackson. “I didn’t think it would go this far”.

“To have a paper published at such a young age — it’s really mind blowing,” agrees Calcea Johnson.

“It’s very exciting for me, because I know when I was growing up, STEM [science, technology, engineering, and math] wasn’t really a cool thing. So the fact that all these people actually are interested in STEM and mathematics really warms my heart and makes me really excited for how far STEM has come.”

In the paper, the authors argue that one of the reasons that trigonometry causes such confusion and anxiety for high school students is that two completely different versions of trigonometry exist and are defined using the same terms. This means that trying to make sense of trigonometry can be like trying to make sense of a picture where two different images have been printed on top of each other.

Jackson and Johnson argue that by separating the two versions, and focusing on just one of them, a large collection of new proofs of the Pythagorean Theorem can be found.

Jackson currently studies at Xavier University of Louisiana and is pursuing a doctoral degree in pharmacy, while Johnson is studying environmental engineering at Louisiana State University’s Roger Hadfield Ogden Honors College.

I am very proud that we are both able to be such a positive influence in showing that young women and women of color can do these things, and to let other young women know that they are able to do whatever they want to do. So that makes me very proud to be able to be in that position,” says Johnson.

Commenting on Johnson and Jackson’s achievements, Della Dumbaugh, editor-in-chief of American Mathematical Monthly, says, “The Monthly is honored and delighted to publish the work of these two students on its pages.

“Their results call attention to the promise of the fresh perspective of students on the field. They also highlight the important role of teachers and schools in advancing the next generation of mathematicians.

“Even more, this work echoes the spirit of Benjamin Finkel when he founded the Monthly in 1894 to feature mathematics within reach of teachers and students of mathematics.”

Here’s a link to and a citation for the paper,

Five or Ten New Proofs of the Pythagorean Theorem by Ne’Kiya Jackson & Calcea Johnson. The American Mathematical Monthly Volume 131, 2024 – Issue 9 Pages 739-752 DOI: https://doi.org/10.1080/00029890.2024.2370240 Published online: 27 Oct 2024

This paper is open access.

3D picture language for mathematics

There’s a new, 3D picture language for mathematics called ‘quon’ according to a March 3, 2017 news item on phys.org,

Galileo called mathematics the “language with which God wrote the universe.” He described a picture-language, and now that language has a new dimension.

The Harvard trio of Arthur Jaffe, the Landon T. Clay Professor of Mathematics and Theoretical Science, postdoctoral fellow Zhengwei Liu, and researcher Alex Wozniakowski has developed a 3-D picture-language for mathematics with potential as a tool across a range of topics, from pure math to physics.

Though not the first pictorial language of mathematics, the new one, called quon, holds promise for being able to transmit not only complex concepts, but also vast amounts of detail in relatively simple images. …

A March 2, 2017 Harvard University news release by Peter Reuell, which originated the news item, provides more context for the research,

“It’s a big deal,” said Jacob Biamonte of the Quantum Complexity Science Initiative after reading the research. “The paper will set a new foundation for a vast topic.”

“This paper is the result of work we’ve been doing for the past year and a half, and we regard this as the start of something new and exciting,” Jaffe said. “It seems to be the tip of an iceberg. We invented our language to solve a problem in quantum information, but we have already found that this language led us to the discovery of new mathematical results in other areas of mathematics. We expect that it will also have interesting applications in physics.”

When it comes to the “language” of mathematics, humans start with the basics — by learning their numbers. As we get older, however, things become more complex.

“We learn to use algebra, and we use letters to represent variables or other values that might be altered,” Liu said. “Now, when we look at research work, we see fewer numbers and more letters and formulas. One of our aims is to replace ‘symbol proof’ by ‘picture proof.’”

The new language relies on images to convey the same information that is found in traditional algebraic equations — and in some cases, even more.

“An image can contain information that is very hard to describe algebraically,” Liu said. “It is very easy to transmit meaning through an image, and easy for people to understand what they see in an image, so we visualize these concepts and instead of words or letters can communicate via pictures.”

“So this pictorial language for mathematics can give you insights and a way of thinking that you don’t see in the usual, algebraic way of approaching mathematics,” Jaffe said. “For centuries there has been a great deal of interaction between mathematics and physics because people were thinking about the same things, but from different points of view. When we put the two subjects together, we found many new insights, and this new language can take that into another dimension.”

In their most recent work, the researchers moved their language into a more literal realm, creating 3-D images that, when manipulated, can trigger mathematical insights.

“Where before we had been working in two dimensions, we now see that it’s valuable to have a language that’s Lego-like, and in three dimensions,” Jaffe said. “By pushing these pictures around, or working with them like an object you can deform, the images can have different mathematical meanings, and in that way we can create equations.”

Among their pictorial feats, Jaffe said, are the complex equations used to describe quantum teleportation. The researchers have pictures for the Pauli matrices, which are fundamental components of quantum information protocols. This shows that the standard protocols are topological, and also leads to discovery of new protocols.

“It turns out one picture is worth 1,000 symbols,” Jaffe said.

“We could describe this algebraically, and it might require an entire page of equations,” Liu added. “But we can do that in one picture, so it can capture a lot of information.”

Having found a fit with quantum information, the researchers are now exploring how their language might also be useful in a number of other subjects in mathematics and physics.

“We don’t want to make claims at this point,” Jaffe said, “but we believe and are thinking about quite a few other areas where this picture-language could be important.”

Sadly, there are no artistic images illustrating quon but this is from the paper,

An n-quon is represented by n hemispheres. We call the flat disc on the boundary of each hemisphere a boundary disc. Each hemisphere contains a neutral diagram with four boundary points on its boundary disk. The dotted box designates the internal structure that specifies the quon vector. For example, the 3-quon is represented as

Courtesy: PNAS and Harvard University

I gather the term ‘quon’ is meant to suggest quantum particles.

Here’s a link and a citation for the paper,

Quon 3D language for quantum information by Zhengwei Liu, Alex Wozniakowski, and Arthur M. Jaffe. Proceedins of the National Academy of Sciences Published online before print February 6, 2017, doi: 10.1073/pnas.1621345114 PNAS March 7, 2017 vol. 114 no. 10

This paper appears to be open access.

Does education kill the ability to do algebra?

Apparently, the ability to perform basic algebra is innate in humans, mice, fish, and others. Researchers at Johns Hopkins describe some of their findings about algebra and innate abilities in this video,

While the researchers don’t accuse the education system of destroying or damaging one’s ability to perform algebra, I will make the suggestion, the gut level instinct the researchers are describing is educated out of most of us. Here’s more from the March 6, 2014 news item on ScienceDaily describing the research,

Millions of high school and college algebra students are united in a shared agony over solving for x and y, and for those to whom the answers don’t come easily, it gets worse: Most preschoolers and kindergarteners can do some algebra before even entering a math class.

In a just-published study in the journal Developmental Science, lead author and post-doctoral fellow Melissa Kibbe and Lisa Feigenson, associate professor of psychological and brain sciences at Johns Hopkins University’s Krieger School of Arts and Sciences, find that most preschoolers and kindergarteners, or children between 4 and 6, can do basic algebra naturally.

“These very young children, some of whom are just learning to count, and few of whom have even gone to school yet, are doing basic algebra and with little effort,” Kibbe said. “They do it by using what we call their ‘Approximate Number System:’ their gut-level, inborn sense of quantity and number.”

A Johns Hopkins University March 7, 2014 news piece by Latarsha Gatlin describes the research further,

The “Approximate Number System,” or ANS, is also called “number sense,” and describes humans’ and animals’ ability to quickly size up the quantity of objects in their everyday environments. We’re born with this ability, which is probably an evolutionary adaptation to help human and animal ancestors survive in the wild, scientists say.

Previous research has revealed some interesting facts about number sense, including that adolescents with better math abilities also had superior number sense when they were preschoolers, and that number sense peaks at age 35.

Kibbe, who works in Feigenson’s lab, wondered whether preschool-age children could harness that intuitive mathematical ability to solve for a hidden variable. In other words, could they do something akin to basic algebra before they ever received formal classroom mathematics instruction? The answer was “yes,” at least when the algebra problem was acted out by two furry stuffed animals—Gator and Cheetah—using “magic cups” filled with objects like buttons, plastic doll shoes, and pennies.

In the study, children sat down individually with an examiner who introduced them to the two characters, each of which had a cup filled with an unknown quantity of items. Children were told that each character’s cup would “magically” add more items to a pile of objects already sitting on a table. But children were not allowed to see the number of objects in either cup: they only saw the pile before it was added to, and after, so they had to infer approximately how many objects Gator’s cup and Cheetah’s cup contained.

At the end, the examiner pretended that she had mixed up the cups, and asked the children—after showing them what was in one of the cups—to help her figure out whose cup it was. The majority of the children knew whose cup it was, a finding that revealed for the researchers that the pint-sized participants had been solving for a missing quantity. In essence, this is the same as doing basic algebra.

“What was in the cup was the x and y variable, and children nailed it,” said Feigenson, director of the Johns Hopkins Laboratory for Child Development. “Gator’s cup was the x variable and Cheetah’s cup was the y variable. We found out that young children are very, very good at this. It appears that they are harnessing their gut level number sense to solve this task.”

If this kind of basic algebraic reasoning is so simple and natural for 4, 5, and 6-year-olds, then why it is so difficult for teens and others?

“One possibility is that formal algebra relies on memorized rules and symbols that seem to trip many people up,” Feigenson said. “So one of the exciting future directions for this research is to ask whether telling teachers that children have this gut level ability—long before they master the symbols—might help in encouraging students to harness these skills. Teachers may be able to help children master these kind of computations earlier, and more easily, giving them a wedge into the system.”

While number sense helps children in solving basic algebra, more sophisticated concepts and reasoning are needed to master the complex algebra problems that are taught later in the school age years.

Another finding from the research was that an ANS aptitude does not follow gender lines. Boys and girls answered questions correctly in equal proportions during the experiments, the researchers said. Although other research shows that even young children can be influenced by gender stereotypes about girls’ versus boys’ math prowess, “we see no evidence for gender differences in our work on basic number sense,” Feigenson said.

Parents with numerically challenged kids shouldn’t worry that their child will be bad at math. The psychologists say it’s more important to nurture and support young children’s use of their number sense in solving problems that will later be introduced more formally in school.

“We find links at all ages between the precision of people’s Approximate Number System and their formal math ability,” Feigenson said. “But this does not necessarily mean that children with poorer precision grow up to be bad at math. For example, children with poorer number sense may need to rely on other strategies, besides their gut sense of number, to solve math problems. But this is an area where much future research is needed.”

Here’s a link to and a citation for the paper,

Young children ‘solve for x’ using the Approximate Number System by Melissa M. Kibbe and Lisa Feigenson. Article first published online: 3 MAR 2014 DOI: 10.1111/desc.12177

© 2014 John Wiley & Sons Ltd

This paper is behind a paywall.

When twice as much (algebra) is good for you

“We find positive and substantial longer-run impacts of double-dose algebra on college entrance exam scores, high school graduation rates and college enrollment rates, suggesting that the policy had significant benefits that were not easily observable in the first couple of years of its existence,” wrote the article’s authors.

The Mar. 21, 2013 news release on EurekAlert which includes the preceding quote recounts an extraordinary story about an approach to teaching algebra that was not enthusiastically adopted at first but first some reason administrators and teachers persisted with it. Chelsey Leu’s Mar. 21, 2013 article (which originated the news release) for UChicago (University of Chicago) News (Note: Links have been removed),

Martin Gartzman sat in his dentist’s waiting room last fall when he read a study in Education Next that nearly brought him to tears.

A decade ago, in his former position as chief math and science officer for Chicago Public Schools [CPS], Gartzman spearheaded an attempt to decrease ninth-grade algebra failure rates, an issue he calls “an incredibly vexing problem.” His idea was to provide extra time for struggling students by having them take two consecutive periods of algebra.

In high schools, ninth-grade algebra is typically the class with the highest failure rate. This presents a barrier to graduation, because high schools usually require three to four years of math to graduate.

Students have about a 20 percent chance of passing the next math level if they don’t first pass algebra, Gartzman said, versus 80 percent for those who do pass. The data are clear: If students fail ninth-grade algebra, the likelihood of passing later years of math, and ultimately of graduating, is slim

Gartzman’s work to decrease algebra failure rates at CPS was motivated by a study of Melissa Roderick, the Hermon Dunlap Smith Professor at UChicago’s School of Social Service Administration. The study emphasized the importance of keeping students academically on track in their freshman year to increase the graduation rate.

Some administrators and teachers resisted the new policy. Teachers called these sessions “double-period hell” because they gathered, in one class, the most unmotivated students who had the biggest problems with math.

Principals and counselors sometimes saw the double periods as punishment for the students, depriving them of courses they may have enjoyed taking and replacing them with courses they disliked.

It seemed to Gartzman that double-period students were learning more math, though he had no supporting data. He gauged students’ progress by class grades, not by standardized tests. The CPS educators had no way of fully assessing their double-period idea. All they knew was that failure rates didn’t budge.

Unfortunately, Leu does not explain why the administrators and teachers continued with the program but it’s a good thing they did (Note: Links have been removed),

“Double-dosing had an immediate impact on student performance in algebra, increasing the proportion of students earning at least a B by 9.4 percentage points, or more than 65 percent,” noted the Education Next article. Although ninth-grade algebra passing rates remained mostly unaffected, “The mean GPA across all math courses taken after freshman year increased by 0.14 grade points on a 4.0 scale.”

They also found significantly increased graduation rates. The researchers concluded on an encouraging note: “Although the intervention was not particularly effective for the average affected student, the fact that it improved high school graduation and college enrollment rates for even a subset of low-performing and at-risk students is extraordinarily promising when targeted at the appropriate students.” [emphasis mine]

Gartzman recalled that reading the article “was mind-blowing for me. I had no idea that the researchers were continuing to study these kids.”

The study had followed a set of students from eighth grade through graduation, while Gartzman’s team could only follow them for a year after the program began. The improvements appeared five years after launching double-dose algebra, hiding them from the CPS team, which had focused on short-term student performance. [emphasis mine]

Gartzman stressed the importance of education policy research. “Nomi and Allensworth did some really sophisticated modeling that only researchers could do, that school districts really can’t do. It validates school districts all over the country who had been investing in double-period strategies.”

I’m not sure I understand the numbers very well (maybe I need a double-dose of numbers). The 9.4% increase for students earning a B sounds good but a mean increase of 0.14 in grade points doesn’t sound as impressive. As for the bit about the program being “not particularly effective for the average affected student,” what kind of student is helped by this program? As for the improvements being seen five years after the program launch. does this mean that students in the program showed improvement five years later (in first year university) or that researchers weren’t able to effectively measure any impact in the grade nine classroom until five years after the program began?

Regardless, it seems there is an improvement and having suffered through my share algebra classes, I applaud the educators for finding a way to help some students, if not all.