Panic attacks and panic disorder may be caused by an imbalance of brain chemicals or a family history of panic disorder. They sometimes happen with no clear cause. Panic attacks may also be brought on by: 1  A health problem such as an overactive thyroid ( hyperthyroidism ), or heart or breathing problems. 2  Depression or another mood disorder. 3  Alcohol abuse. 4  Using too much nicotine or too much caffeine. 5  Taking certain medicines, such as those used to treat asthma and heart problems.
(1) Learning occurs when people construct their own knowledge by connecting new information with prior knowledge; (2) Learning grows out of social interaction; (3) Learning lasts when learners are actively engaged with information. Lectures can be part of a constructivist based lesson as long as it addresses these tenets. Certain practices such as well structured group work, reflection, and think-pair-share are also often reflective of constructivist theory.
Many people are right in the middle of those two scenarios. This has led many educators to believe that the best way to learn is by having students construct their own knowledge instead of having someone construct it for them. This belief is explained by the Constructivist Learning Theory. This theory states that learning is an active process of creating meaning from different experiences. In other words, students will learn best by by trying to make sense of something on their own with the teacher as a guide to help them along the way.