Reflection: Developing a Conceptual Understanding Mole Ratios - Section 6: Debrief

 

The importance of turn and talk in the science classroom cannot be overstated. The concept is fairly straightforward—give students a few questions, and let them try to answer them with a partner. They could then record their answers to turn in for teacher evaluation. They could put them on poster paper for a critique session from other students or the teacher.

The most important part of turn and talk, however, is the dialogue itself. Giving students a chance to grapple with the lesson’s subject matter, and articulate ideas with one another, is a key part of the learning process. Providing 5-7 minutes in a lesson for students to do this can help students identify and clarify what they did not understand. It can give one student the chance to teach another student. And, it can reveal to the teacher areas where many students are still struggling.

Implementing the turn and talk takes practice and patience. Students must be taught behavioral expectations during the first few times it is used. These may include being respectful of each other’s opinions and skill level and accountable talk. Reinforcing these norms through grades and words of encouragement also help to build a culture where scientific dialogue is the norm. 

  The Importance of Dialogue in the Science Classroom
  Developing a Conceptual Understanding: The Importance of Dialogue in the Science Classroom
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Mole Ratios

Unit 5: Stoichiometry
Lesson 4 of 8

Objective: Students will be able to calculate the number of moles produced or needed in a chemical reaction using a balanced chemical equation.

Big Idea: The mole provides chemists with a bridge between the microscopic and the macroscopic world. Mole ratios are used to predict the amount of product formed or reactants needed.

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