Scaffolding and differentiating are very similar. They are both meant to get students to learn the content from their level, but while differentiating tends to be about giving assignments based on level and interest, scaffolding is more about incrementally building students toward a skill by breaking the steps on the skill ladder and starting students where they are with the intent to build them up in manageable increments. Thus, differentiating can be used in scaffolding, but that’s not what scaffolding is all about.
Picture scaffolding as a standards ladder. At the top is the next level of a standard we want a student to meet. The standard can be broken down into leveled skill sets. What do we want students to be able to know or do to meet the standard. What is the order of skills that need to be learned to progress? Some skills are lateral like putting both feet on the same step and some skills are vertical, moving up towards mastery, like learning to add single numbers before double, or learning multiplication before division. Before students get to the next step, they are assessed to see if they’re ready to move on.
In a Johns Hopkins Instructor Blog entitled “Scaffolding for Successful Learning,” the author believes that scaffolding should involve a highly structured course, clear instructions, crafting class discussions for all voices, and active learning (Hall, 2018). In other words, classes need a lot of “front-loading,” or work on the behalf of the teacher prior to the start of the class. Even then, it is not a throw it at them and set them free situation. Project Based Learning, therefore, is highly scaffolded.
A PBL project is a large task encompassing several weeks, and thus, each step must be scaffolded to lead to the final project. Rebecca Alber (2014) believes that there are six steps to scaffolding: (1) “show and tell,” which is about modeling and transparency; (2) “tap into prior knowledge”; (3) “give time to talk”; (4) “pre-teach vocabulary”; (5) “use visual aids”; and (6) “pause, ask questions, pause, review.”
How many of us say that we learn best by seeing something rather than hearing about it? Modeling for students is a cornerstone of scaffolding, in my experience. Have you ever interrupted someone with “Just show me!” while they were in the middle of explaining how to do something? Every chance you have, show or demonstrate to students exactly what they are expected to do.
Albert Bandura believed that we learn not just by doing, but by watching others do. This is the reasoning for the “I Do” component of a lesson plan. Additionally, allowing students to know the plan, to know exactly how they will be graded gives students a stronger internal locus of control and a sense of self-efficacy when they know that what they have to do each step of the way to get the results they want.
Prior knowledge allows students to guide behavior in the classroom, which is why setting up class rules and norms helps pave the way for classroom management, an essential item in project based learning. Prior knowledge allows students to make predictions. If a precedent is set in consequences for positive or negative behavior in the classroom, students will predict that they will get the same results. In a like manner, if a teacher sparks prior knowledge with reading questions before a lesson, activating vocabulary before a lesson, or showing the final rubric before the lesson, the student will be able to predict what to expect at the end at work toward what the student wants out of it. Finally, based on constructivist theories, we build new knowledge from links to prior knowledge. When we can connect the two, the learning is stronger. Having said all that, I must say that the entry event must connect to student’s prior knowledge. Additionally, it must connect to their heart.
When I first started to teach, I went to a seminar where I received a handout that detailed what the brain needed to learn. One was oxygen, so we need students to get their blood flowing as the learn. Movement is a good way to do that. Another was social communication. We learn better by talking to each other and bouncing ideas off each other. It is important to build movement and communication into the PBL project. From small groups to think pair share or turn and talk to larger Socratic Seminars and fishbowl talks, begin building conversation into your classroom. Teach them effective communication and critical dialogue before getting into PBL.
The idea that we build new meaning on old knowledge is one key reason for pre-teaching vocabulary. Give the students an idea of what they will be learning. Then, examine the context when you see it again and hopefully again. This does include vocabulary not related to content but what they are expected to do. What does it mean to analyze, evaluate, contextualize?
Learners who speak a different language and learners who have difficulty reading or paying attention are not the only ones who benefit from visual aids. Visual aids such as concept maps are helpful in exploring thoughts and ideas. The use of graphic organizers and images add order and interest. It helps students grasp concepts more quickly and clearly. The brain is a sensory organ and memory is often attached to heightened senses (not too much, though, lest they get sensory overload). Too often, the only sense we devote time to is hearing. Be sure to build into your project multiple pathways to the brain through all the senses, the emotions, and the prior memories.
Finally, having the questions front loaded is also important. Teachers may find it helpful to scaffold and build depth of knowledge questions remembering that most of the questions need to be open ended and full of depth with follow up questions behind. Students should be able to explain not only what they know but how or why they know. Essential questions and guiding questions with the sub questions leading students to what they are expected to learn helps them focus. Very few questions should be true false, yes or no. They also should not be a what or who question that pulls nothing but recollection of facts from their heads. Keep students moving forward with inquiry.
Making sure all students have a chance to answer questions, to show what they know, is imperative. Then, wait time is essential. Not everyone has the answer at the top of their heads. I have asked students a question and have given them 3-6 seconds to answer, which is a long time, but for some kids, it’s not long enough. If they still didn’t know or were hesitant to answer, I generally showed them a questions number further down the page and told the student that when I got to the question, I would call on the child again. This allowed the student to prepare, to focus on what was needed, so when I go back around to it, the child succeeded. Students need those types of successful experiences. If students still can’t answer, don’t answer the question yourself: have them put their heads together to briefly discuss. If they can’t find the answer YET, cue them without giving the answer away or have them look it up. It builds independence.
Scaffolding the parts of the lessons or the questions in the lessons builds stronger learners with grit and independence. It is also a necessary part of the planning in PBL.
Alber, R. (2014, January 24). “Scaffolding strategies to use with your students”
Edutopia Retrieved June 12, 2020 from https://www.edutopia.org/blog/scaffolding-lessons-six-strategies-rebecca-alber
Hall, M. (2018, November 14). “Scaffolding for successful learning.” The Instructor Blog. Johns Hopkins University. Retrieved June 12, 2020 from https://ii.library.jhu.edu/2018/11/14/scaffolding-for-successful-learning/
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