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something about writing things down excites the brain, brain imaging studies show.

laptop note-takers tested immediately after a class could recall more of a lecture and performed slightly better than their pen-pushing classmates when tested on facts presented in class.

Any advantage, though, is temporary. After just 24 hours, the computer note takers typically forgot material they’ve transcribed, several studies said. Nor were their copious notes much help in refreshing their memory because they were so superficial.

those who took notes by hand could remember the lecture material longer and had a better grip on concepts presented in class, even a week later. The process of taking them down encoded the information more deeply in memory, experts said. Longhand notes also were better for review because they’re more organized.

The problem is a typist’s tendency to take verbatim notes. “Ironically, the very feature that makes laptop note-taking so appealing—the ability to take notes more quickly—was what undermined learning,” said Dr. Kiewra.

To inspire questioning and wondering, Meghan Zigmond (10) put her first grade students in groups and allowed them to use a Padlet wall (11) to capture their questions as they read Douglas Florian's Comets, Stars, The Moon, and Mars: Space Poems and Paintings

She used Socrative to capture her fifth graders' questions and answers throughout the presentation, giving them an immediate channel for their thoughts.

The backchannel gave every student an opportunity to express his or her views and to listen to voices that otherwise may not have been heard.

A backchannel creates ubiquitous opportunities (18). In a blended environment, students and teachers can communicate through multiple modalities, allow their thoughts to develop over time, and engage in authentic learning.

problem-BL is still more often seen in the post-secondary world than in K-12, where project-BL is more common. Problem-based learning typically follow prescribed steps: Presentation of an "ill-structured" (open-ended, "messy") problem Problem definition or formulation (the problem statement) Generation of a "knowledge inventory" (a list of "what we know about the problem" and "what we need to know") Generation of possible solutions Formulation of learning issues for self-directed and coached learning Sharing of findings and solutions

By using problem-BL, these teachers feel they can design single-subject math projects -- aka "problems" -- that effectively teach more math content by being more limited in scope than many typical project-BL units.