Wednesday, December 12, 2018

Chris Cerf: Who, Us?

After Robin Lake decided to reject the "reformy" mantle, Chris Perf has decided to add his two cents, but I'm not sure that his two cents is not overpriced.

Cerf came up in the Klein-Bloomberrg overhaul of NYC pubic schools, by virtue of having taught at a private school for a year, then working as a lawyer in Joel Klein's law firm. The arrangement was a curious one-- his salary was paid not by the city, but by private donors. From there he went on to run New Jersey's department of education (thanks Chris Chistie); he also spent some time as a lobbyist for the National Alliance for Public Charter Schools. He left New Jersey to join Amplify under his old boss, Klein. After fleeing that disaster, he resurfaced as Superintendent of Newark Schools. He appears to be between gigs at the moment, but like most reformsters, Perf has a network for falling upward.

Short form: Cerf is certainly familiar withe the reformy world.

His brief essay at The 74 has just a few points to make, and all of them are either disingenuous or deliberately misleading.

In a curious linguistic twist, over the past decade, opponents of transformational change have co-opted the word “reform” and essentially converted it into a malediction.

"Gosh, you guys. I have no idea how the term "reform" collected bad connotations. Our evil opponents must have done it!"

Nope. Reformsters grabbed the term and held on tight because it had the power to immediately frame ed reform as a bunch of white hat heroes coming to rescue education from the Powers of Badness as typified by teachers, unions, regulations, etc. Those of us in the defense of public ed camp worked hard not to let them have the word-- hence the use of words like reformster, rephormes, privatizers, colonizers, GERM, etc-- but they clung to it as fiercely as they have worked to attach the term "public" to charter schools.

If "reform" became a malediction, that is on the reformy camp. They are the ones who attacked the teaching profession , silences communities by stomping democratic processes, treated teachers like the enemy, allowed charter fraud and malfeasance to bloom unchecked, unleashed profiteers under the guise of free market competition, and promoted various programs with toxicity levels evident even too casual observers (test-based accountability, anyone).

In short, if Cerf is sad that reform has a bad name, I recommend some soul searching. Public ed teachers do it daily, and it helps keep them harp and focused. When you stop thinking and just start blaming Those Guys, you're in the weeds.

Perf says it's curious to turn on reform when non-white, non-wealthy students are lagging in success and test score growth has stalled (a stall that coincides with the rise of modern ed reform).  

One would think that seeking to “reform” a system that yields these outcomes would be considered a good thing.
"I swear, nothing that went wrong was our fault."

This is the classic reform fallacy. There is a real problem, therefor my solution must be a good one. No. No, no, no. You do not prove the effectiveness of your solution by proving the severity of the problem. Are there real problems in public education? Absolutely-- despite reform rhetoric to the contrary, I've never heard anybody say that pre-reform education was perfect and all we need to do is go back to that. We have some serious problems with how we support education in some communities, and issues with the same racism baked throughout our society. We have schools and communities that are terribly underserved. None of that means that reformy ideas are good ones.

But Cerf is fine with chucking "reform" with just a few caveats:

What does matter is that the urgency of bravely pushing for positive change remains front and center; that we resist the temptation to return to the “anything goes” mentality that preceded the standards movement and No Child Left Behind; that we improve on, rather than abandon, proven ideas (like standards, accountability, empowering parents with more options, and acknowledging differences in teacher efficacy); and that we not fall prey to politically safe slogans like “personalized learning,” “student agency,” or “community schools” to the extent they operate as a substitute for making sure that every child, regardless of birth circumstances, is launched into adulthood prepared to succeed in life.

Was there an anything goes mentality before NCLB? That's a pretty huge assertion, and it takes us back to the bad old days of reformsters suggesting that everybody in the education world, including all the people who had devoted their adult lives to educating children, just sucked eggs and needed the noble amateurs of the ed reform movement to rescue children from the awful school system.

But more importantly, virtually nothing on Cerf's list of proven ideas has actually been proven. None of it. The reformy team has been trying to prove them for at least two decades, and they've got nothing to show for it (well, except those who have big fat piles of money to show for it). 

And woah-- if Cerf thinks that personalized learning is just a safe euphemism, he's been out of the loop. It is the next big reform pay day. Hr'd better make some calls to iNACOL or the folks at Chan-Zuckerberg.

Look, lots of ed reform figures have taken a moment to examine their choices and programs. Some, like Rick Hess, have pressed for uncomfortable truths all along, and some are just showing up at the party. But if reformsters like Perf think the solution is to insist that their ideas were awesome and they were just thwarted by a vast conspiracy of naughty public ed fans, they are going to stay stuck right where they are, the reformy equivalent of that fifty-year-old paunchy guy on the porch who is still telling anyone who will listen how he should have won that big football game in high school. 

You guys screwed up. In some big ways, and some small ways. In avoidable ways, and in ways that are baked into your ideas. In lots of ways related to your amateur status coupled with your unwillingness to listen to trained professionals.  You can face all of that, or you can just keep stamping your feet.

I recommend the former. Look, in public ed we confront our failures all the time, often in real time as we watch a lesson plan crash and burn right in front of us. Being able to face failure is a basic survival technique in the classroom. I recommend that Cerf and those like him try it out, because this kind of whiny self-justification with a touch of moral one-upmanship is not abroad look on anyone. I offer this advice in the spirit of the season because, really, if they ignore it, they will only disappear from view that much faster, which would not be the worst thing for those of us who support public ed. 

Tuesday, December 11, 2018

FL: DeSantis Tabs Team To Crush Public Ed

It is always difficult to say just which state is the most hostile and inhospitable to public education, but no matter how you slice it, Florida is always working hard to stay at the top of the big, smelly heap. And the administration of Gov-elect Ron DeSantis is committed to finding ways to make Florida worse.

The new public school cafeteria
There's Jennifer Sullivan, the 27-year-old homeschooled college drop out (and we're talking Liberty University here) who will be head of the House education committee. There's the longtime grifter and profiteer who, now term-limited out of the legislature, is looking for a new job and has been lined up for education chief (here's another take on just how bad Corcoran is). Both of those have been widely noted.

But for a further sign of how badly DeSantis wants to cut up public education and sell off the parts, just look at his education transition team. This will take a bit, but you need to see the full picture.

Dr. Elizabeth M. Bejar, Vice President for Academic Affairs, Florida International University.

Dr. Desmond Blackburn; CEO, New Teacher Center. NTC is a reformy teacher-fixing mill, heavily sponsored by all the usual suspects (Gates, Walton, Hewlett, Chan-Zuckerberg, et al). Blackburn last May ended his three years as Brevard County superintendent to take this job.

Emily Bouck; Policy & Advocacy Director, Higher Learning Advocates This group formed just last year to lobby for outcome-based approaches in higher ed. Initial board included Margarett Spellings, George Miller, and John Engler. All advocates of privatizing pub lic ed.

The Honorable Bob Cortes; Former Representative, Florida House of Representatives. Cortes, among other things, was a strong advocate for the Schools of Hope, a law that allows charters to prey on struggling public schools.

Brenda Dickinson; President, Home Education Foundation. The group that lobbies for home schoolers in the state capital.

The Honorable Erika Donalds; Former Board Member, Collier County School Board. Well, here's a winner. Donalds is a partner in a New York investment group. She founded Parents' Rights of Choice for Kids (Parents ROCK). Then she got herself elected to a school board, and founded the Florida Coalition of School Board Members, a group with only six founding members and which seems devoted to austerity and school choice.  Also on the FLCRC board is Patricia Levesque, a well-known name in the reformster world. Donalds was behind the whole Amendment 8 sneak attack on public schools.

Aubrey Edge; President & CEO, First Coast Energy

T. Willard Fair; President & CEO, Urban League of Greater Miami. Fair has led the Urban League in pushing for charters in Miami. The charter-loving Center for Education Reform recognizes him as an ally.

Dr. Angela Garcia Falconetti; President, Polk State College. Polk State operates three charter schools.

Dr. Alvin S. Felzenberg; Presidential Historian & Lecturer, Annenberg School for Communication, University of Pennsylvania. He worked in the Bush II Department of Defense and was  Assistant Secretary of State in NJ under Governor Thomas Kean.

Bruce Ferguson; President & CEO, CareerSource Northeast Florida. Job placement and training.

Keith Flaugh; Managing Director, Florida Citizens Alliance. Right wing "liberty and learning" group. They actually have two representatives in this group.

The Honorable Don Gaetz; Former President, Florida Senate. Lover of charters, hater of teachers.

Robert Haag; President & CEO, Florida Consortium of Public Charter Schools

Jonathan Hage; CEO, Charter Schools USA

Greg Haile; President, Broward College

Bill Heavener; Chairman, University of Florida Board of Trustees. Heavener also owns a for-profit college and was a deep-pocketed supporter of Rick Scott.

Warren Hudson; President, Lake Highland Preparatory School. LHPS is a huge private school in Orlando, founded as a segregation academy.

Russell Hughes; Superintendent, Walton County School District

Dr. Allan I. Jacob; Chairman & Chief Medical Officer, Physicians Dialysis

Mimi Jankovits; Executive Director, Teach Florida. The group lobbied hard for tax credit scholarships (another version of vouchers).

John Kirtley; Founder and Chairman, Step Up for Students. Certain types off vouchers require a sort of middle man; here they are.

Eugene Lamb; Board of Trustees, Tallahassee Community College

Craig Mather; Founder & CEO, Bags, Inc.

Dr. Kim McDougal; Former Chief of Staff, Governor Rick Scott and Education Policy Expert. Yeah, she worked with Job Bush, too. Expert, sure.

Dr. Edward Meadows; President, Pensacola State College

Connie Militio; Chief Government Relations Officer (that means "lobbyist"), Hillsborough County Public Schools. Interesting choice; you may remember this as the district that crashed and burned letting Bill Gates experiment on them.

Keli Mondello; Co-Founder & Board Chairman, LiFT Academy. Private school specializing in neurodiversity.

Steve Moore; President, The Vestcor Companies, Inc. Real estate and housing projects.

Dr. Ed Moore; President, Independent Colleges and Universities of Florida

The Honorable Lubby Navarro; School Board Member, Miami-Dade County. Navarro backed a move to keep Miami-Date from joining the lawsuit over Schools of Hope.

Lynn Norman-Teck; Executive Director, Florida Charter School Alliance

Dr. Madeline Pumariega; Former Chancellor, Florida College System. Earned her spurs working with Take Stock in Children.

Randle Richardson; CEO, Accelerated Learning Solutions, a school management company.

Lyn Stanfield; Strategic Relations Manager, Apple. Apple recent demonstrated again that they're willing to work with anyone if it means they can move some product.

Rev. Rick Stevens; Managing Director, Florida Citizens Alliance. The second rep from the right wing group.

The Honorable John Thrasher; President, Florida State University

Andy Tuck; Vice Chairman, Florida State Board of Education. Tuck is a citrus grower who has, at times, seemed a bit out of his depth.

Fernando Zulueta; President, Academica Corporation. One of the largest charter operators in the state.

So there you have it-- a collection of folks from the charter biz, the voucher biz, and the biz biz, with barely a whiff of representation of actual; pub lic education folks. Not that there's been any real doubt, but here's some further proof that DeSantis will continue Florida's tradition of open hostility toward public education. Merry Christmas to Florida's privatizers and profiteers. Floridians who care about public education must continue to be vigilant and vocal.


Sunday, December 9, 2018

ICYMI: The Tree's Up Edition (12/9)

The tree is up, but we're waiting to see how the board of directors does with it before we add ornaments. Tis the season. In the meantime, here's some reading from the week. Remember to share.

Cashing in Immigrant Children

The warehousing of immigrant children has been a gold mine for one business. And guess what-- charter schooling is part of the business plan.

Dora Fisher: Down The Dark Money Hole

About one of the big dark money backers of charter schools whose name you might not know-- but you should.

What Really Should Be Happening in Kindergarten

Do I seem repetitive on this subject. I'll continue to be so until we stop screwing it up.

Lawmaker Shows How To Become a Charter Millionaire in Five Steps

Short, sweet and clear-- how an Arizona cashes in on the charter laws he helps write.

You Don't Have To Like It, But The Students Talk About Us

The Jose Vilson on a major aspect of the teacher-student relationship.

Does High Impact Teaching Cause High Impact Fatigue

Spoiler alert: yes. Read more about what that looks like.

No School Needed For Politician Overseeing Florida Schools

You probably didn't miss this, but in case you did (which is kind of the point of these Sunday roundups), here's the story of the homeschooled college dropout who will head up the Florida house education committee. Oh, Florida.

Six Questions We Should Be Asking About Personalized Learning 

Ed Week is right on the money this time, with some questions we should be asking about ed reforms Next Big Thing

Don't Teach Kids Coding

Slate piece from a computer programmer who says he will not teach his kids to code, and you shouldn't either.

100 Christmas Songs Ranked

Not about education, but this ranking by Alexandra Petri is hilarious and well worth your time. Tis the season.

Saturday, December 8, 2018

KY: Setting More Bad Goals for 2019

Oh, Kentucky. A state slowly being beaten down by the usual gang of mediocre businessmen masquerading as public servants.

Big data, charter entrepreneurs, voucher fans, pension vultures, testocrats-- they've all taken a shot at grabbing tax dollars from Kentucky taxpayers with a great deal of patience and varying degrees of success, even if Kentucky's teachers did raise a fuss (prompting Governor Matt Bevin to demonstrate yet again what low regard he holds the profession in).

Now Kentucky's Department of Education has let everyone know what their priorities are for the coming year, and it is once again not good news for fans of actual public education.

There will be a push, of course, for charters. It's worth noting how the push will come, because it's a lesson in some of the nuances of the budgeting process. Kentucky has, as of last year, a charter law. What it doesn't have is a mechanism for funding a charter school, and so, no charter schools, yet.

Yeah, let's hit this kid with some more tough love

Education Commissioner Wayne Lewis to change that. Lewis is a former teacher by way of the Teach New Orleans, the TNTP-run sister program of Teach for America. In creating a funding stream for charters, he faces a challenge. It's not a budget year, so it would take a super-majority of legislators to pass such a thing. The last set of elections were a mixed bag-- a teacher ousted a legislator who backed a crappy teacher pension bill in the primaries, but in the general election, teachers were mostly close but no cigar. However, even in losing, teachers sent a clear signal that education is a hot issue in Kentucky. So the super-majority supporting a new revenue stream for charters may not be doable.

What may be doable, however, is the same old diverting of tax dollars trick beloved in the charter world, because that doesn't require any new money-- just the same old "we can take the money that used to run one system and use it to run multiple systems, easy peasy" baloney.

Meanwhile, Kentucky would also like to get on that stupid third grade reading retention bandwagon.

When it comes to retaining third grade students over reading skills, the research is pretty clear-- it's bad news. It can be even worse news if the policy is not simply to retain students who read poorly, but to retains students who do not pass the test. This leads like the stupidity we saw in Florida, where students who had clearly demonstrated their reading ability were still retained because they wouldn't take the test. What are the odds that Kentucky, land of Opt Out Equals Zero Score, would follow a similarly dumb policy.

Board of Education Chairman Hal Heiner has tried to frame this as a reading "guarantee," and said that, well, don't pay any attention to the retaining part, just figure that we won't have to retain very many. This assumes that teachers or students or both are simply holding back, and once properly threatened. Or as one retention policy advocate once put it, "Retention policies are badly needed tough love." This set of assumptions would be ridiculous and insulting if real, live eight year old human children weren't made to suffer because of them.

In keeping with the general ed reform policy of diminishing the democratic process, the department also plans to spend 2019 stripping elected school boards of some of their powers. Because elections are dumb. Hope that Kentuckians don't have too many reasons to regret the choices they made in the last elections.


Inducing ADHD

"Maybe you should consider testing him. You know. For ADD."

That was my son's kindergarten teacher. His mother and I were in for yet another conference because he was "a problem." The nature of the problem? Well, because of my schedule, he arrived 15-20 minutes before school officially started. His teacher's expectation was that he would sit at his desk, still and quiet, while she finished getting ready for the day. The rest of his problems were similar, violations of her desire for order in her classroom. He was an active and social five year old boy, a July birthday and so youngest in his class.

It was not a good year, and one of the top regrets of my life was that I did not make more of a fuss on his behalf. I should have demanded a switch to a different teacher, or gone over the head of the one we had, made a fuss, been That Parent. But I didn't want too be That Parent, didn't want to violate professional respect (particularly since this was the same district in which I taught). I only had about a decade in the field. I should have fought harder for my son.

But I did know enough-- and so did my wife at the time-- to know that he was not ADD, that he did not even need to be tested for ADD.

It was a bad year, and at the end of it, my son had learned to things-- that he was a bad student, and that he didn't like school. The better ending to that story was that my district in the following year instituted a Junior First grade, and with a supportive and nurturing teacher, he thrived.

That was twenty-five-ish years ago, and I have often thought back on it, and not just because of my own regrets. What would happen, I wondered, with parents who were younger, in their early twenties instead of mid-thirties? What would happen if someone with a little less education or education profession background heard a teacher say their child should be checked for ADD? And more recently, I wonder what happens in post-Core classrooms where the expectation is now that five year olds- even very young five year olds- will sit quietly at a desk and do academic work.

The short answer to all those questions is "about what you would think" or "nothing good."

Nowadays, of course, it's ADHD, and it is being diagnosed at an ever-increasing rate, with 5% of the children in the US on some kind of ADHD medication. And it's not like an ADHD diagnosis is backed up by a lot of hard science. As noted in the New York Times

Unlike other childhood diseases — such as asthma, obesity and diabetes — the diagnosis of A.D.H.D. is inherently subjective and depends on the assessment of parents, school personnel and health care providers. For a child who is easily distracted, an assessment of normal, inattentive behavior by one could be a formal diagnosis of A.D.H.D. by another.

And now here comes a study from Harvard Medical School, noting that a child born in August is more likely to be diagnosed with ADHD. Is August a wonky month? Is Leo actually the astrological sign of the ADHD lion? No, the most likely explanation is that August-born students are the youngest in their class, and that a child who has just turned five is very different from a child who is almost six, and that increased pressure to perform academic tasks in "the new first grade" highlights those differences.

This overdiagnosis, official or unofficial, is not a new phenomenon. Every time in education we decide that we've Got It, that a program or system that we've developed is pretty much perfect and correct, we create a problem. The perfect system will fail some students, but because we are invested in its perfectness, we conclude that the student must be defective. Public schools have done this for decades, all the way back to the old old days when left-handed children were subjected to all sorts of abuse to "fix" the defect of their left-handedness. Charter schools have institutionalized the problem by declaring that their system (no excuses, whatever) doesn't ever need to be changed and that students who don't have what it takes to thrive in that system should just go walk with their feet.

The rise in ADHD diagnoses is a clear sign that we are screwing up with the littles. If, as is the case in Florida, huge numbers of students are testing as "not ready for kindergarten, that's a sign that your kindergarten, or your readiness test, or both are wrong. If large numbers of tiny humans are having trouble coping with The New First Grade in kindergarten, that is a sign that your kindergarten is messed up. If large numbers of tiny humans are being diagnoses powerful drugs in order to make them more acceptable to school, then somebody has really lost the thread.

The folks who are not fans of public education will get plenty of mileage out of the Harvard study. I hope that school districts and charter schools read the study and rethink their choices for littles. And I hope that the next parent who hears a suggestion to drug up their five year old so that she can better cope with the demands of kindergarten-- I hope those parents push back way harder than we had the balls to.

Yes, ADHD is real, and somewhere in those many children diagnosed with it are children with a real problem. But mostly the truth is this: if a child needs to take strong drugs to deal with going to school, that school is messed up



Friday, December 7, 2018

MI: Baldfaced Power Grab

Lansing is witnessing one of the most extraordinary power grabs ever attempted, and one of the targets of these lame duck Republicans is the state board of education.

Several actions are being attempted by the legislature, and they include an attempt to complete supplant the constitutionally established and democratically elected state board of education.

The move to overturn the democratic process is not unusual for either education or Michigan. Reeformsters have long used the move of pushing aside, dissolving, or neutering elected school boards, and Michigan also has s history of appointing "emergency managers" to strip power from locally elected officials (think Flint and how well that worked out).

Lansing in the winter, with bitter GOP sadness in the air
But generally speaking, these power grabs have two main characteristics-- one is that the voters who are stripped of their voting power are usually black or brown, and the other is that some sort of noble pretense is offered (such as the ever-popular "we're doing this For The Children).

But in Michigan, the GOP is prepared to negate the votes of an entire state (even the white folks). And in Michigan, the masks are off. As in Wisconsin, where a similar GOP revolt against democracy is under way, there is not even a thin veil of reasoning for the power grab. The argument is simple-- the Democrats are going to have power, and we don't want them to.

In fairness to the Michigan coup leaders, there's also an element of "They never obey me." The state board is about two shift from a 4-4 GOP-Dem makeup to a 6-2 spoilt favoring Democrats, but the board seems to have a history of mostly non-partisan activity. While most folks might describe that as  "working well," Rep. Tim Kelly (R) describes that as not working at all.

“The state board is not doing their jobs,” Kelly said. “It’s time to move forward.”

Mind you, that is "their jobs" as defined by Kelly, who has longstanding beefs with the board, having previously tried to kill it entirely. And "move forward" apparently means "overturn the will of the voters of Michigan."

The plan cals for creating what would essentially be a second appointed state board of education which would exercise powers stripped from the current elected board. In particular, Kelly sees the Education Accountability Policy Commission implementing "innovation districts" that would implement competency based education right away. The state board has been dragging their feet on CBE (even going so far as to bring in some education writer/blogger from Pennsylvania to talk about why CBE would be a bad idea). The current governor was a fan of CBE, but the New Democratic governor might not be quite so excited about it. Hence the "need" too create a GOP-run board that would push this troubled-yet-profitable reformy idea.

Kelly claims the innovative districts would be the very ultimate in local control. Kelly is full of it. First of all, unless every one of these future "innovation zone" districts has been clamoring for CBE, then the first act of this "local control" move will be for the state's unelected shadow board of education to impose a new, untested, unproven educational system on the local school district. That's the opposite of local control. Then, since modern CBE is most often a computer-based program delivered and controlled by an outside vendor, it is a system that is at odds with local control. It will make a bunch of people a bunch of money, but it will not give control to the local district. Kelly is full of something, and it's not Michigan snow.

Of course, if Kelly really believes in his policy, there's a path to getting it made into law-- have a bunch of people stand for election and let the voters say they want to see the policy enacted. But because he doesn't think his ideas will have traction under the administration that the voters actually elected, he's figuring to just ram it through now. If you're wondering how Kelly got to have such strong education ideas-- well, he was an education advisor to Governor Engler in Michigan, moving from Indiana to take the job (and after he worked in the asphalt business). Kelly was also in line for a job at Betsy DeVos's Department of Education until it turned out he had made blog posts insulting, among others, Muslim women, Head Start parent, and women in science.

Michigan schools are a mess, near the bottom of the nation by just about any measure you care to use. But Michigan has also been a happy playground for reformers like Ed Secretary Betsy DeVos and Rep. Tim Kelly. They have had their way for over a decade, and their policies have failed. But ed reform has always been in part about shutting down democracy for Certain People, so it's no surprise too see that used as a last-ditch attempt to keep reformsters in power in Michigan.

At any rate, if I were a Michigan voter, I would get on the phone and let my representatives know that   I would like to have the government that Michigan taxpayers actually voted for, and not the one that some sad, defeated Republicans want to impose by fiat. Tell your rep that Michigan does not need a second board of education-- certainly not one that was never elected to the post or assigned powers by the state constitution.

Thursday, December 6, 2018

The Disordered Order of Competencies

Competency Based Education (or Proficiency Based Learning, or Outcome Based Education, or Mastery Learning, or whatever new name appears next week) is the up-and-coming flavor of the week in education, even though it is neither new nor well-defined by the people who promote it (or the people who are implementing it in name only). But the basic principle is simple and, really, fairly common sensical. It offers a different solution to the age-old tension at the heart of education: students should definitely learn a certain core group of competencies, and they have to learn them in 180 days.
Traditionally, we resolve the tension by siding with the 180 days, and so some students are pushed through even though they don't necessarily fully master the material. But what if we flipped that? What if we said that every student must fully master one skill or unit of content knowledge before she moved on to the next one, regardless of how much or little time it took her to do it.
There's an obvious challenge here. What if Chris only takes 30 days to complete the full list of competencies? Worse, what if Pat needs 400 days to master the same full list? But there's another, less obvious issue here.
CBE is often presented with math lessons as the examples. That's handy, because everyone understands math to be sequential (you can't do calculus if you can't add and subtract).
But what about other disciplines? Remember, the sequence is very important, because in a true competency based system, no student can move to the next unit until she has demonstrated competency (or proficiency, or mastery) in the previous unit. So where should the critical roadblocks come? Should a musician be able to play Bach before they can try Beethoven? Does a physics student have to master potential difference in electricity before she can study centrifugal force? And what about English class? Should students be required to master Romeo and Juliet before they can start working on writing paragraphs? Does it make sense for a teacher to sequence her less engaging units at the beginning of the year when students are still fresh, or at the end of the year so that students who get "stuck" on that unit aren't left quite so far behind?
CBE calls for time to be the variable while learning is the constant, but few districts that have implemented some version of CBE have been brave enough to tell parents, "Summer vacation doesn't start for your child until they've finished all their modules," so there is still a ticking clock behind all of this, meaning that a student who gets stuck on module 3 may never make it to module 20 at all.
Does it make sense to let a student sit like a potted plant for 180 days, then collect a diploma at the end even though they've learned nothing? No, but that's not the only alternative. If Chris can't get past module 3, moving Chris on allows for the possibility that modules 4-26 will actually teach Chris something. CBE assumes that all students can learn everything, so Chris should get there eventually. But eventually can be a long time, and the clock is ticking. If we're going to deny Chris that option, we'd better be absolutely certain that all other modules are hopeless and pointless if Chris didn't master 3. We'd better be comfortable saying, "This stuff is so important that we're going to deny you the chance to learn anything else until you get past this." If you're more comfortable thinking of learning as a many-threaded flexible sequence of interdependent skills and content that can be approached from many different directions in many different combinations, or if you're more comfortable thinking that some times it's better to walk away when you're stuck and come back later after you've wrestled with some different challenges, it's possible that competency based education isn't really for you.