Reflection: Routines and Procedures Acid and Base Calculations - Section 2: Explain


Chemistry can be a difficult science because it involves lots of content knowledge as well as math skills.  In my school ALL students are expected to take chemistry as their physical science course, so math is not used as a prerequisite for placing students into chemistry.  This results in my having students of all different math abilities in my classroom.  

This forces me to make sure that I am teaching students how to perform math as well as how it related to the chemistry content.  In this particular unit it is really important that students are able to use their calculators when plugging into the problems.  This is especially true for students who do not really understand what exponential and logarithmic scales mean.  When I show students the equations for calculating pH and H+ I make sure to explicitly show them how to plug the data into their calculators.  This is a movie that demonstrates how I do this in my classroom.   This is something that I make sure to do continuously on the board as well as make sure to tell students to have their table partners help them if they are having a hard time plugging into their calculators. 

  Routines and Procedures: Using Calculators in Chemistry
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Acid and Base Calculations

Unit 7: Unit 8: Water Quality
Lesson 7 of 11

Objective: Students will be able to calculate the pH, pOH, [H+], and [OH-] for solutions as demonstrated by taking notes, performing practice questions, and completing an activity.

Big Idea: Acids and Bases have characteristic pH, pOH, [H+], and [OH-] values which can be calculated.

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Science, Chemistry, Acids and Bases, pH, pOH, solution, water
  80 minutes
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