Methods of Encoding - Pairing Visuals

A popular applause line at education conferences is "Nothing has changed in education for 200 years!"  It gets everybody fired up for the "new" thing that the speaker wants to promote, but it simply is not true.  I taught for 25 years and was, of course, a student for 17 years before that.  And just in that relatively short time, education has changed dramatically.  The fact that we sit in rows at desks notwithstanding, my grandparents wouldn't recognize most of what happens in classrooms today.  Have you ever picked up a textbook from a hundred years ago?  It is only a few millimeters thick, has tiny font, no pictures, and little spacing - printing was way too expensive to waste precious space.

Tech has brought about a million flashy changes.  Kids can make videos of their own, but the most profoundly effective change was probably the simplest - pairing visual images with explanations.

I know you were expecting something more fun, and I'm certainly not going to be able to sell this to people at conferences.

But it really is this simple.  

Is the impact because we are addressing the learning styles of visual learners?  

No.  That isn't a thing.  You aren't a visual learner.  Stop saying it.  Your child is not a visual learner.  Just stop.  Stop it now.

The reason pairing visuals with explanations is so powerful for encoding information is because we ALL essentially have two pathways in the brain for processing information. Verbal and images.  

Verbal information can be spoken or written - it doesn't matter because they are both words, and words are processed by the verbal pathway.  Images are, of course, pictures. Or animated video. Or even pictures we imagine in our minds.  When these two processing centers are used in conjunction, they compliment each other, and encoding is more powerful.  It's called Dual Coding, and it helps EVERY student (and is, I believe, one of the reasons the learning styles myth just won't die - people don't understand the difference).

But just as I said last week that not all explanations are created equal, the same is true of how we pair our images and explanations.  I'm not talking about clip art, here. I fell for this for a while, so I want to be clear that some images serve as nothing more than a distraction.  If I am teaching physics students to solve kinematics problems (the relationship between acceleration, distance, and time) and include a picture of a race car just for the sake of having a picture, that is NOT dual coding.  If I put in a gif of a race car going past over and over again because I think kids like gifs, that is NOT dual coding.  Those images are impeding learning, not enhancing it.

An image that helps your explanation is one in which the image provides detail, context, or anchors that words alone cannot.  A photograph of a flower in a science book is unlikely to help (unless it is just to show types of a certain varietal), but a labeled diagram of a flower with lines pointing to the structures being named can enhance a paragraph in which those structures are explained.  

The less eye movement required to take in the information, the better.  An image with direct labels is better than one with letters corresponding to words elsewhere on the page.  In very detailed pictures (like anatomical drawings), this may not be possible, but put it as close to the image as possible.  Ideally, the words and image can be processed simultaneously without splitting your attention.

What's nice about understanding the difference between the truth of dual coding and the myth of learning styles is that you don't have to pressure yourself into making three different lesson plans for the same subject.  You can design one high quality lesson with modalities that fit the content, and ALL students will benefit.

Methods of Encoding - Explanations

Despite all of the fads encouraging "guide on the side rather than sage on the stage," the most common form of instruction remains good, old fashioned explanations.  

Why?  

Because the most effective, efficient, and straightforward way of getting information from the head of someone knowledge to the head of someone without it is to tell them.  We know it works from research, but even if we didn't, we would know it works from the thousands of years of history in which oral tradition was the only option available (perhaps paired with a drawing on a cave wall, but we'll talk about that next week).

So, most of the encoding that happens in schools is done through explanation.  That means, we should invest a lot of our professional development time on getting explanations right.  Anyone who has ever helped their dad with a home repair, only to misunderstand and mess up the project, knows that explanations aren't all created equal. 

Good explanations engage listeners through hooks, brisk pacing, frequent checks for understanding, analogies, and clear sequencing.  

Hooks:

Think of the best sermon, stand up comedy routine, or TED talk you have ever heard.  Chances are, you remember how it started more than any other part of it.  And that's likely because excellent speakers start with something to get your attention.  Sometimes, it's a quote or especially interesting fact, but more often than not, it's a story.  Better yet, it is the first half of a story that they will finish later in the speech.  People who want you to keep listening are wise to pique your curiosity and make you want to know more.  Teachers, pay attention to the world around you, and you will see myriads of opportunities to connect something you have seen to your content.  "Last week, I saw a bird fly into a window, and it made me wonder, 'What makes glass transparent?'" will draw students in far more than, "Today, we will talk about what make glass transparent."  An English teacher can tell a story about an argument they overheard as the lead in to a discussion on literary conflict.  Even in math, there is a way to turn a variable into a character.  Check out this TED talk from Tyler DeWitt on using story telling in his science classes to help his kids care about what they are learning.  The point, if you don't grab their attention early, you don't stand a chance of keeping them engaged when the lesson gets harder.

Brisk Pacing:

I confess that I had not thought much about pacing (other than my own need to fit the whole lesson into a class period) before reading Zach Groshell's book Just Tell Them.  In his role as instructional coach and consultant, Zach has observed hundreds of lessons and says that one of the things he has noticed most is pacing that is too slow.  He's not advising that teachers speak at lightning speed and blow past checks for understanding (far from it if you have ever seen him present).  He is simply advising that we not dwell forever on one point if it isn't needed and eliminate things that aren't necessary for learning.  I'll add that a lot of classroom management issues could be pre-empted with faster pacing as well and free up time for retrieval practice at the end of the period.

Checks for Understanding:

No matter how good an explainer you are, there will be misconceptions in the minds of your students.  They miss an important word that changes the meaning of a sentence.  They activate some partially relevant piece of prior knowledge and make an inappropriate connection to it.  Their lack of background knowledge or vocabulary makes them have only a partial understanding.  There are lots of ways misconceptions can sneak in to your excellent lesson.  And misconceptions are like weeds; they grow out of control alongside the good information.  And, they are easier to uproot if you catch them early.  For that reason, your explanations should include frequent checks for understanding from as many of your students as possible.  Don't just call on the kid with his hand up.  He only raised his hand because he was confident, so he's almost always going to be right; and that is almost always going to mislead you into believing that everyone understands.  You can whiteboards, paper, choral response, cold calling, or digital tools, but you must ask them to answer questions that show their thinking.

Analogies, Metaphors, and Similes:

The best way to understand something is to connect it something else that you already understand.  Using analogies in your explanations help content to stick.  Chemistry teachers, make the reactants and products of a chemical reaction people at homecoming trying to find the right dance partners.  

Algebra teachers - "Think of the variable like a loner.  He just wants to be by himself.  He's trying to get everyone to go away by doing the opposite of what they want to do."  Kids understand that a lot more than "To isolate a variable, employ the opposite operation of those terms already connected to the variable."

You do have to be careful with analogies.  Because they are so powerful, they are sometimes the part of your explanation that sticks the best.  I used to describe dissociation (the process of ionic compounds dissolving in water) with the analogy, "It's like a married couple going to a party.  They wife goes one direction and the husband goes another to mingle during the party.  But, they aren't divorced (to make the point that chemical decomposition has not happened) because they come back together at the end of the party.  One the next test they had, several students gave me a detailed answer to the question, "Describe the process of dissociation" without ever mentioning ions or polar molecules.  They told me a lot about mingling at parties.  That was a good reminder for me to constantly circle back to the content to prevent only encoding the analogy.  

Sequencing:

Perhaps the most under-appreciated part of explanations is the sequencing of information.  I think that is because most of us plan it rather unconsciously.  But it is worth taking a few minutes to think about as you plan your lessons.  Will "A" make sense if I teach it before I teach "B"?  If not, re-sequence.  

There are time when this is difficult, especially as students get older and the content becomes more complex and self referencing.  I often found myself saying, "But we'll talk more about that next semester."  The key then is to explain what they NEEED to know in order to understand what you are teaching them today.  It's okay to say, "There will be more on this later" without trying to teach all of the coming concept.  In fact, I found that my especially curious students were excited to know that things would connect up later.  I also really liked making that explicit when we got there.  "Hey, remember that thing from two weeks ago?  See how it all comes together now?  Isn't it cool how everything depends on everything else?"  Once a student made the connection for me.  I was teaching Net Ionic Equations, and a student said,"Man, this one thing has stuff from like four different chapters."  I had not recognized that yet, but he was right.  If I had tried to teach those too early in the year, it would have been an absolute mess. 

Explanations may be the most straightforward way to teach, but it takes time to plan effectively.  I recommend two books to help with this process.  The first one is one I already mentioned - Zach Groshell's Just Tell Them.  Zach practices what he preaches, so it is a short book that is practical, to the point, and leaves out the fluff.  

If you have a little more time and you want to deep dive into the science behind explanations, I recommend How to Explain Absolutely Anything to Absolutely Anyone by Andy Tharby.  It is a little more dense than Zach's, but it is chock full of great connections to cognitives science research.  Together, these two books will up your explanation game in a huge ways.

Practicing What You Have Not Learned?

I discovered a delightful show on YouTube during lockdown.  I say "discovered;" it had already been on for fourteen years before I found it.  It's called Would I Lie to You?, and I'm honestly not sure I would have gotten through the hybrid year without it. I'd come home at the end of the day a puddle of exhaustion and eat dinner watching Colbert, after which I would watch a couple of episodes of WILTY and laugh until I cried.

Last week, a more recent episode featured a story in which one of the participants claimed to have made a sculpture of a girl he liked (like the girl in the Lionel Richie "Hello" video).  Spoiler alert in case you plan to watch the show:  This story turned out not to be true.  But, as he was selling his tale, one of the questions that was asked was, "Do you have experience with sculpting."  His answer was, "No, but I figured you learn by practice."

This could just be the education nerd in me or a reflection of the age of the young man telling the story, but all I could think was, "Well, there's someone who has been exposed to too much "discovery learning."  Here he was thinking that the highly specialized skill of representative sculpture (not an abstract, but the face of a girl he was trying to impress) was something he could figure out on his own by trial and error.  It's a good thing this story wasn't true because I don't think he would have won the affections of this girl with a "learn by practice" sculpture.

I think the reason this stuck with me was the word "practice."  There are two parts to learning.  Encoding and practice.  

Whether knowledge or skill, encoding must come first.  I'm not saying it has to be learned from a professional teacher, but no one is truly self-taught.  They get their initial knowledge or skill from somewhere.  Whether it is from reading, direct instruction, modeling, or TikTok video - something must first be input and encoded.  Practice, by definition, is the repetition of something already learned.  Practice is important as it myelinates the nerve cells and solidifies the skill or knowledge, but it cannot come first.

As the great Tom Sherrington put it in one of his recent blog posts, "You need to make some initial pathways in your brain (some actual physical connections) before we can worry about strengthening them through application and practice."

We have underemphasized this in recent years with the talk of retrieval practice at every conference.  I'm downplaying retrieval.  We must have both to make learning stay in long term memory.  But let's talk more about good methods of encoding.

I'm going to attempt to do my part by making the next few posts about methods of encoding.  So stay tuned this summer.

The Dignity of All Work

I once had a principal who liked to tell what he believed to be an inspiring story.  His junior high school was right across from a textile mill.  Once, when he was not performing up to expectations, his teacher made him look out the window at the mill and said, "If you don't get good grades, you'll have to spend your life working at the mill." He then, apparently, put his all into his studies so he wouldn't have to livet hat life.  Every time he told this story, I cringed (and not just because my grandmother and brother both worked in textiles) because he was taking dignity from one kind of work in order to inspire another kind.  I didn't have the kind of relationship with him where I could go to him and say, "You should be glad there are people who don't think their above working in textile mills or you would be naked right now," but I always wanted to.

Across the country, the school year is winding down.  Students are graduating from high school, and they are taking a wide variety of paths.  Some students are excitedly celebrating their acceptances to four year universities and already have plans for post-graduate degrees.  Others are nervously waitlisted or accepted on a deferred basis.  Some are going to community college while they take general ed classes and figure out what they want to major in.  Some will get vocational training in a technical school.  Some will begin entry level jobs and work their way up.  Some will wait tables. Some will design the next big video game. 

And some will work in textile mills.

Every kid's path is different.

Let me put it another way for those who need to hear it differently.

Every path is valid; yours is not superior.

The society in which we live is inanely interdependent, and we need people to do all of the jobs.  If your garbage isn't picked up one week, that's inconvenient, but if it isn't picked up for two month, that's horrifying.  Be grateful for your trash collector.  You have a coffee addiction?  It's a good thing there are people who don't see service jobs in coffee shops as something to be sneered at, or you would have to figure out how to do it for yourself.  When you need your air conditioning repaired on a 95 degree day, your son't degree in accounting or contract law won't do you much good, so you are going to shell out good money to someone with skills you don't have.

Let's not forget that college for most is a relatively new thing.  Just one hundred years ago, going to college after high school was the exception, not the rule.  Neither of the Wright brothers graduated high school.  Frederick Douglas wasn't allowed an education.  Yet, those people managed to have great influence through their work. Some of our founding fathers attended college, but not all of them did. Going back farther, Jesus was a carpenter, and Adam and Eve were farmers.  

Let me be clear.  I am not against against people pursuing degrees.  I did.  If what you want to do requires a degree or two or five, I'm all for it. I hope your school prepared you well for that choice.  After all, I don't want a doctor or lawyer or engineer who is "self taught."  I'm saying that it is not the right choice for everyone.

We need all jobs. Not everyone needs to go into debt to get one.

It's an unappreciated truth that some paths are not linear.  You may do one thing for a few years and then make a different choice.  It's always been the case that few people do the thing they majored in for their entire career, and that is becoming increasingly rare in recent years.  Sometimes, interests change.  Other times, market forces and government whims force change.  Injuries, the birth of kids, divorce, aging parents who need care, and a million other things can spark big change.  The idea that a high school senior has their whole life planned out when they graduate is fiction.  When I was in college, I worked as a janitor in an arena and in child care. I was a teacher for 25 years, but between two schools, I worked at a mortgage company.  Now, I work at the YMCA.  All of these jobs helped shape who I am, and the lessons I learned in each of those jobs were carried with me into the next one, making me a better employee and more interesting person.

In 2018, pictures of Geoffrey Owens, who had played Eldin on the Cosby Show, went viral.  Why?  He was bagging groceries at Trader Joe's.  Acting isn't always consistent income, sometimes including long time periods between gigs; so he was making ends meet by working at the grocery chain.  The same people who criticize so called "Hollywood elites" for being out of touch went online and mocked him for doing work they considered beneath themselves.  He praised Trader Joe's as a great place to work and said, "I'm not ashamed of working at the grocery store. No job is better than any other.  Every job is worthwhile and valuable."

What is important is that you do something that is honest, fulfilling for you, and contributes to society in some way. You are meant to honor God with whatever He has put in front of you to do each day, whether that is brain surgery or car repair. Whatever God has given you to do, use it to glorify him and serve others.  The reformer Martin Luther is credited as saying, "A dairy maid can milk cows to the glory of God."  He said that she is "glorifying God just as much as a preacher in a pulpit preaching a sermon."  Civil rights activist Martin Luther King, Jr. described all work as significant, saying, "All labor that uplifts humanity has dignity and importance and should be undertaken with painstaking excellence."

After communion each week, my congregation prays the same prayer.  It says, in part, "And now, send us out to do the work you have given us to do."  If we do that, our work has value, dignity, and importance, no matter what it is.

Congratulations to the class of 2025.  Whatever you have chosen to do next, and wherever your path may lead you, do it well.  Use it to glorify God, and serve others.