Some days, when you’re rocking a seven-day-old infant to sleep at three in the morning, the only thing to do is pick away at instruction manuals in a bleary-eyed daze. So it was that I found myself reading two excellent (if seemingly unrelated) books, Zach Groshell’s Just Tell Them and E.D. Hirsch’s Ratchet Effect over the past few weeks. While tackling discrete elements of education—the former instruction and the latter curriculum—their topics depend upon each other, like the two chemicals of an epoxy resin that remain inert until mixed.
To Fordhamites, Hirsch needs no introduction. He’s a veritable patron saint of education reform, whose 1987 book Cultural Literacy advanced a paradigm-shifting argument: Factual knowledge, not transferable skills, determine academic competence. As such, a core curriculum is perhaps the most important lever for school improvement. Since then, he’s written a number of best-selling books that advance and build upon that fundamental argument.
His most recent offering may not be his strongest, but that’s akin to lamenting Stanley Kubrick’s Spartacus as not his strongest film or that Lou Gehrig only hit a triple. It still outshines most education books.
Where much of the book retreads familiar ground about the importance of shared common knowledge to both individuals (allowing them to both read and think) and society more generally (binding us together through shared cultural touchpoints), this book’s unique contribution comes in the title: The Ratchet Effect.
A concept from developmental psychology, the ratchet effect references ratchet straps that cannot regress once advanced as an analogy to describe human progress. As a species, we discover new knowledge and processes, both simple and complex, ranging from how to build simple tools up to and exceeding nuclear fission, all of which we can then pass along to future generations. As such, year by year, century by century, humanity advances, whereas other species never advance, stuck with the same tools, never exceeding sticks for poking and stones for smashing.
This development and transmission of a cumulative cultural knowledge is unique to humanity. We ratchet forward, but monkeys, for example, slip back and must start from the beginning with every generation. Regarding education, this concept implies that schools are then responsible for handing along this body of learned knowledge, like an inherited stack of books.
Reading across Hirsch’s corpus, his various defenses of well-planned curricula remind me of a passage from a theologian discussing the multifarious benefits of civilization:
Thus, if one asked an ordinary intelligent man, on the spur of the moment, “Why do you prefer civilization to savagery?” he would look wildly round at object after object, and would only be able to answer vaguely, “Why, there is that bookcase...and the coals in the coal-scuttle...and pianos...and policemen.” The whole case for civilization is that the case for it is complex. It has done so many things.
As for preferring centralized curriculum to teacher preference or student direction, one looks around and can only answer “well, there’s the literacy and common culture…and patriotism…and coherent educational plans.” Hirsch’s latest emphasis on human advancement is but one more proof in defense of knowledge-rich curriculum. It does so many things.
Interspersed in his discussions of curriculum, Hirsch makes reference to the instructional practices that teachers ought to use to transmit this cultural inheritance—well-structured classrooms, clear explanations, and assessments, for example—but the argument for curriculum doesn’t point to one form of instruction necessarily. Once we’ve identified a body of knowledge, what’s the best method for passing along this information to students? Should they all read it independently in books? Discover it in contrived scenarios? Learn it through projects? Download it onto their brains through a neural implant?
Such questions bring me to my second book, Just Tell Them. Its author, Zach Gorshell, an instructional coach, argues that explicit instruction—featuring examples, thorough explanations, modeling, and other structured, teacher-led techniques—is the most effective means of transmitting our collective knowledge from teacher to students.
Perhaps understandably, other books have spent hefty word counts defending direct instruction over and above project-based, student-directed, or inquiry learning without delving into how it’s actually done well. Such polemics are worthwhile as a so many faddish instructional books prattle on about glitzy instructional techniques that teach students nothing. But when it comes to application, teachers have Doug Lemov’s Teach Like a Champion and little else.
Groshell fills that dearth. He does open his book with a brief case for direct instruction but spends the majority of his word count discussing how to do it well. For example, explanations should remain concise and avoid vague terms. Teachers must include both examples and non-examples. While images are beneficial, text overlays alongside diagrams or pictures can overload a student’s working memory. Students learn best when teachers toggle between explanation and practice problems instead of an information dump and extended work time.
At a concise ninety-eight pages, Groshell follows his own advice. It’s a useful primer for either parents and policymakers interested in the aspects of research-based instruction, novice teachers struggling in their first years, or instructional coaches who need a text to lean on.
Returning to my central contention: Knowledge rich curriculum and direct instruction depend upon each other. A curriculum cannot teach itself. Unfortunately, too many teachers either learn ineffective theories of instruction or dither away their timing debating esoteric theorems in their teacher prep. Conversely, teachers need actual content to fill their instruction. Without a thoughtfully-planned, sequenced curriculum, students may encounter dinosaurs in three successive grades without ever learning about cellular biology; meanwhile, teachers waste countless hours crafting handmade curriculum and searching for online materials instead of planning effective instructional delivery, adjusting pacing, contacting parents, providing feedback, and other high-yield activities.
Often, we overcomplicate education reform, wiling away hours and ink considering and debating funding formulas, the psychometric validity of this or that assessment, what precisely ought to be the accountability measures for failing schools, and other wonkish debates. Such debates have some value but not much connection to the classroom.
But these two books together remind us to focus on two simple levers to improve schools: curriculum and instruction. That is what schools are about after all. Get those right and much else will fall into place as a result.