Reflection: Routines and Procedures Specific Heat - Section 5: Elaborate Part I

 

Although it would be nice to be able to always have all students perform every experiment it is sometimes easier to have a demonstration for students to watch.  I have found that these demonstrations are more fun for students if their peers help with the demonstrations.  Therefore, I like to call on volunteers to help. 

  • I usually do this BEFORE I tell students what they will be doing (in this case once they figure out that they will be using a blowtorch they all wish that they had volunteered).
  • I try to get girls to volunteer as well as boys.  If I only see boys hands go up I will usually comment that we need some female volunteers as well.  In this case I have two volunteers so I try to get one boy and one girl.
  • In most classes I have a few volunteers but if students do not volunteer than I will usually grab a bag of candy and offer a candy for students who volunteer.  I will also sometimes use popsicle sticks with student names to choose volunteers if not one volunteers. 
  • If too many students volunteer than I try to look for the first hands that go up.  If its hard to tell who was first then I also get volunteers for the next demonstration at this point.  I will say something like, "Jessica and Marco will help with this first demonstration and then Evelyn, Sam, and Lizbeth will help with the next demonstration."

  Using Student Volunteers in the Classroom
  Routines and Procedures: Using Student Volunteers in the Classroom
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Specific Heat

Unit 5: Unit 6: Energy
Lesson 6 of 9

Objective: Students will be able to explain the concept of heat capacity and how to figure out the amount of energy transferred between substances through taking notes, performing practice questions, and participating in demonstrations.

Big Idea: Heat capacity is the amount of energy required to raise the temperature of a substance and can be determined through experiments and calculations.

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Subject(s):
Science, Chemistry, Exothermic Reactions, specific heat, heat capacity, calorimetry, heat, temperature
  95 minutes
flaming cheeto demo set up
 
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