Thoughtful Learning Blog

Insightful articles about 21st century skills, inquiry, project-based learning, media literacy, and education reform.

Vocabulary for Critical Thinking

Mouse Potato

Do you know what a mouse potato is? It’s a person who spends too much time staring at a computer screen. Mouse potatoes are the couch potatoes of the 21st century. In fact, Merriam Webster just added the term mouse potato to its august dictionary.

Perhaps you know a few mouse potatoes. Perhaps you are one. But just learning the term mouse potato suddenly makes you think about how much time you spend in front of the computer. That’s the power of vocabulary. It enables thinking. The size of your vocabulary impacts the size of your mental world.

Vocabulary as Inquiry

All right, so you’re saying, “Here we go—vocabulary. It’s so elementary.” Yes, it is—as in the word element: the building blocks of everything. In fact, the origin of the word elementum is the first three letters of the Canaanite alphabet. When we talk about elements, we are reciting our Canaanite ABCs.

Do you see how one word—elementary—has taken us from language arts to science to social studies? Do you see how knowing that elementum is the same as ABCs influences how we think about the Periodic Table of the Elements, about elementary school, about Holmes’s constant insistence that it is “elementary, my dear Watson”?

A word doesn’t have just one meaning. It is freighted with meaning. In its prefixes, roots, and suffixes, each word stores the DNA of human experience.

Vocabulary therefore shouldn’t be rote memorization. It should be inquiry.

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10 Reasons to Try Project-Based Learning

10 Reasons to Try Project Based Learning

You may have never tried project-based learning, or you may teach in a purely PBL environment. Whatever your background, you’ll find that PBL can be a powerful instructional approach. Here are ten reasons why.


  1. Adult life is project based. Most tasks that adults complete are projects, from simple duties like doing laundry and baking cookies to major endeavors like finding a job or renovating a home. Adults rarely listen to lectures, take notes, and pass tests. Instead, they take on projects. Project-based learning helps students learn content while they practice the skills they need as adults. For a great explanation of this connection, watch this video from the Buck Institute for Education.
  2. Projects prepare students for future work. Any project that can be done the same way over and over with consistent results will soon be outsourced, automated, or digitized. Any project that requires nonlinear thinking, decision making, and problem solving requires a human being. It’s a job—the best kind of job for the future. Watch Thomas Friedman's remarks to the U.S. Conference of Mayors, in which he covers these points from minutes 18:00-34:10.
  3. Projects teach content and 21st century skills. The only way students can learn to collaborate is to collaborate on something. Yes, collaboration can be messy, but that’s all the more reason students need to learn to deal with the messiness. Projects require students to develop the 21st century skills that they need, such as thinking critically and creatively, communicating and collaborating, and consuming and producing information.
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What does your PLN look like?

You may have heard colleagues talk about their PLNs—their personal learning networks—or you may have one of your own. But just what is a personal learning network, and why is it so helpful for educators?

What is a PLN?

A personal learning network consists of the people, places, and things that help you learn. By definition, every lifelong learner has a PLN, whether the person realizes it or not. Also, every person who has a PLN is a lifelong learner. Let’s imagine, for example, that you are a relatively new teacher. Your PLN might look like the following:

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Serious Fun in the Classroom

Serious Fun in the Classroom

Some very clever people are using fun to solve social problems. The approach is called “Fun Theory,” and it’s tackling all kinds of social ills.

For example, Kevin Richardson suggests creating a “speeding lottery.” Cameras that catch speeders can also recognize those who obey the speed limit. Speeders pay fines into a pot, and those who obey are entered into a lottery to win the pot. Check out the speeding lottery video. Fun!

The mayor of Bogota, Columbia, has his own approach to speeding. Anatas Mockus hired over 400 mimes to stand on street corners, making fun of bad drivers. His reasoning is that it is more of a deterrent to humiliate bad drivers than to fine them. His idea has worked, dropping traffic fatalities by more than half. Fun!

And recently, two 17-year-old Canadians named Mathew Ho and Asad Muhammad used fun theory to capture international attention for their backyard experiment. They sent a helium balloon nearly into space, including a Lego astronaut, which they filmed in flight. Fun!

What can fun theory do in my classroom?

Fun theory is limited only by imagination—yours and your students’. First, use fun theory on a source of annoyance. What is your biggest pet peeve? What are you constantly reminding your students about? Here’s a beginning list:

  • Lateness for class
  • Forgotten homework
  • Sloppy mistakes
  • Chatting and texting
  • Not turning in assignments
  • Not putting names on assignments
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Conceptual Blending for Creative Thinking

Conceptual blending is a strategy that businesses use to inspire creative thinking, but it can also help your students think about and engage any topic.

What is conceptual blending?

Conceptual blending is combining two dissimilar concepts and using creative thinking to work out the dissonances. Here’s an example:

“How can we make our workplace more like a playground?”

Workplace like a playground

At first, you might ask—why would anyone want the workplace to be more like a playground? Work is work. Play is play. The two concepts don’t blend. But let’s think about what playgrounds do well:

  • bring people together
  • get them to collaborate
  • offer equipment that inspires creativity
  • encourage users to return repeatedly
  • create multisensory engagement
  • make people happy and healthy

Aren’t these desirable attributes for a workplace?

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3 Simple Steps to the 4 C’s

So you’ve heard of the 4 C’s—critical thinking, creative thinking, communicating, and collaborating—but how are you supposed to teach your own subject and the 4 C’s?

The good news is that the 4 C’s help you teach your subject. They aren’t content. They’re skills for gaining content. Here are 3 simple steps that use the 4 C’s to help students learn your subject:

Step 1: Prompt Critical and Creative Thinking

After introducing and modeling a new concept, prompt students to think critically and creatively about it. Assign a 5-minute activity that students complete individually. Here are some examples:

  • Sentence completion: Ask students to complete a sentence in as many ways as possible.
    Complete the following sentence in as many ways as you can: “The cell membrane helps the cell by . . .”
  • Definitions: Ask students to define a key term, providing its denotation, along with examples, synonyms, and antonyms.
    Define the term “executive branch,” giving examples, synonyms, and antonyms.
  • Problem solving: Ask students to list ways that a problem could be solved.
    List as many ways as you can think of that global economic inequality could be reduced.
  • Clustering: Ask students to write an important concept in the center of a piece of paper and to create as many personal connections as they can to it.
    Write “Supply and Demand” in the middle of a piece of paper and circle it. Around it, write ways supply and demand affect your life.
  • Modeling: Ask students to represent a concept visually, whether in a sketch, a diagram, a symbol, or some other form.
    Create a visual representation of entropy—a drawing, diagram, graph, or other visual.
  • Questioning: Ask students to write five questions about the current topic and to pick the most interesting one.
    Write down five questions you have about logarithms and pick the most interesting one.
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