Low floor, high ceiling, wide walls in ELA classrooms

Have you ever heard of a “low floor (or threshold), high ceiling” task?

I’ve stumbled across it over the last few years in the math realm, such as in articles by Jo Boaler, or in tasks by Dan Meyer, and I found it intriguing as a general framework for lesson and unit planning. Finding ways to include both lower and higher performing students in rigorous academic instruction is something I think a lot about, and this seemed worth exploring. However, I work primarily in special education and ELA, not math, so I was having trouble generalizing.

So I did a little more digging. Here’s what I found:

The concept of low floor, high ceiling was first formulated in the 1970s by Seymour Papert, a professor at MIT heavily influenced by Piaget, as a design principle for a programming language called Logo. The idea was to make programming accessible to young children, while simultaneously being usable at a more complex level by adults.

A robot turtle was developed to provide concrete access to kids for using the programming language.

By Valiant Technology Ltd., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19501049
By Valiant Technology Ltd., CC BY-SA 3.0


Mitchel Resnick, another professor at MIT, added the useful concept of “wide walls” to the design metaphor of a room:


When discussing technologies to support learning and education, my mentor Seymour Papert (who, sadly, passed away last month) often emphasized the importance of “low floors” and “high ceilings.” For a technology to be effective, he said, it should provide easy ways for novices to get started (low floor) but also ways for them to work on increasingly sophisticated projects over time (high ceiling). With his Logo programming language, for example, kids could start by drawing simple squares and triangles, but gradually create more complex geometric patterns over time.

But the most important lesson that I learned from Seymour isn’t captured in the low-floor/high-ceiling metaphor. For a more complete picture, we need to add an extra dimension: wide walls. It’s not enough to provide a single path from low floor to high ceiling; we need to provide wide walls so that kids can explore multiple pathways from floor to ceiling.

Why are wide walls important? We know that kids will become most engaged, and learn the most, when they are working on projects that are personally meaningful to them. But no single project will be meaningful to all kids. So if we want to engage all kids—from many different backgrounds, with many different interests—we need to support a wide diversity of pathways and projects.

. . . Our ultimate goal is to help all kids develop their thinking, develop their voices, and develop their identities. None of that will happen unless we continually ask: Who are we including? Who are we excluding? And how can we provide everyone—everyone—with opportunities for exploring, experimenting, and expressing themselves?

Resnick offers some further advice for designers in an MIT paper, “Some Reflections on Designing Construction Kits for Kids” (bearing in mind this is for construction kits, not for academic content):

  • Design for Designers
  • Low Floor and Wide Walls
  • Make Powerful Ideas Salient – Not Forced
  • Support Many Paths, Many Styles
  • Make it as Simple as Possible – and Maybe Even Simpler
  • Give People What They Want – Not What They Ask For
    • “Often, designs with well-chosen parameters are more successful than designs with fully adjustable parameters” ← I like this quote. This connects to the idea of constraints.
  • Invent Things That You Would Want to Use Yourself
    • In ELA, this translates into assigning tasks that you would want to do yourself. For writing tasks, this most likely would result in something you’d actually enjoy reading.
  • Iterate, Iterate – then Iterate Again

This is all well and good if you’re designing a gadget or a programming language, and it kinda makes sense in math in the sense of a well-designed problem, but what does “low floor, high ceiling” mean in terms of designing lessons or units in ELA? This is where it gets murkier. Does a concept that applies to design have a translation to academic literacy instruction?

Here’s my thoughts on that question:

Usually in ELA we are engaged with texts. A rich text has multiple layers of meaning and ideas well-worth exploring, but the level of abstraction and demands of the language can be a barrier for many students. We can therefore think of the text itself as the “high ceiling” for many lessons (I think, in any case, I could certainly be off base on this).

In many cases, therefore,  the “high ceiling” aspect has already somewhat been defined in an ELA lesson (assuming you are studying rich texts together as a class).

So then, how you do you provide a “low floor” for all of your students to a complex text? And more abstractly, how do you support a wide diversity of pathways or perspectives?

Designing Scaffolded Tasks and Activities

What comes first to mind are the tasks and activities that a teacher designs to prepare their students for understanding the text, for interacting with the text, and for responding to the text. For an exemplar of this type of scaffolding, I highly recommend taking a look at Lesson 2 from Stanford’s Understanding Language unit on persuasion, specifically at how they scaffold student understanding of the Gettysburg address through multiple readings that are even fun. Close reading instruction will readily fail when a teacher simply asks students to re-read a complex text multiple times with no varied and scaffolded forms of engagement.

Designing Provocative Questions

I think the most critical consideration for “wide walls” and spanning from low floor to high ceiling is what sort of questions you plan. For example, for an 8th grade unit I co-designed on the topic of segregation, we generated a series of questions, ascending from elemental (“What is segregation? What is integration?”) to provocative and open-ended: (“NYC schools are largely segregated by race and class. Is it possible to provide all children an excellent education in a segregated school system? If so, how? If not, why not and what steps must we take to fix this?”). That final question represents the cumulative question for the unit. There’s certainly room for different ways of expressing knowledge based on a student’s own perspective on the topic. This could be via an essay, an action plan, a presentation, or a socratic discussion, as a few possible examples.

A critical element to both “low floor” and “high ceiling” is designing units and lessons around a provocative question. For example, watch this video of master teacher Sarah Wessling Brown modeling a high school ELA lesson on monsters (Easter egg: see if you can spot me in the background). She asks the provocative question, “What do monsters teach us about human nature?” and then designs engaging activities to engage students in the texts and knowledge they need to explore it.

I think questions like these embody what LFHCWW design is all about. They provide both engagement, and therefore access, but have ample room for sophistication and complex thinking.

One mistake some teachers make is to assume that a “higher order” question is beyond the purview of their struggling students, and they try to dumb down their questions. My advice is to worry less about the “cognitive level” of a question, and more about the language that you use and the manner in which you phrase it. Language and phrasing can either present a barrier to understanding, or a scaffold. A precisely constructed question provides the initial direction and language that students will need.

We haven’t even really gotten started

But this post is getting overlong. How do you think the concept of a task with low floor, high ceiling, and wide walls can apply in ELA classrooms? Share, and let’s build a common understanding of what this might mean in our lesson and unit design.


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