VCE Chemistry Titration Lesson 1
I flask back to my VCE as I started to describe the equipment used for a titration. Woosh so much new terminology to learn! The students did not respond to my questions. They sat quietly and in doing so I felt myself becoming more and more uncertain of what I was describing to them. It had been so long since I had done a titration myself.
My slideshow helped to structure the class and act as a lesson guide for myself and students
After a brief description the group set off to work towards a pipette and burette license in a “water play” titration prac. It was then that the group started to fire up. I mingled with the students as they set up their burettes and started to ask them questions. It was apparent that with pipette in hand they seemed more confident to answer my probing questions.
“What would happen if we didn’t rinse the burette with the standard solution?”
A open ended question allowed me to determine the more maths thinkers in the room. Some students related back to wanting to know the exact moles, others thought it only to keep everything clean but did not link the stoichometry and others just looked with a blank stare and remarked because that is what the instructions say to do. I also noticed that some students with procedure in hand still wanted a verbal account of what to do next.
The students seem to be a little apprehensive to me the “new” teacher. I set a task to help with the prac we are do the next day. I hope this will ensure students will read the procedure. They all go their license and were really excited. A 17 year old love getting a colorful certificate still!
Supervisor Teachers Remarks:
- I like the questions in your ppt
- When writing you equation you did get smaller when finishing it
- Good to relate titration to River Water Analysis
- Volume you said two significant places I think you mean to say 2 decimal places
- Good to remember “filling the void” in the burette
- Nice the way you highlighted the volume difference when void is not filled
- Students not familiar with pipette that is why they could not answer your question
- Conical flask rinsed with water, this point is very important- good moles important
- Sarah you are doing a great job with the explanation of equipment WELL DONE
Lesson Plan
Date: 24/8/09 Start Time: 1:25 End Time: 2:40
Year Level: Unit 2 Subject: Chemistry
Lesson Subject: Volumetric Analysis
Background Co-educational group. Motivation and maths is not a strength.
Curriculum Overview VCE Unit 2: Area Study 1 • calculations including mass-mass stoichiometry and concentration and volume of solutions;
Learning Objectives Becoming familiar with a burette and titration language and Connection of Volumetric analysis with stoichiometry
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<span style="font-family:Times New Roman,serif;font-size:78%;"><b>Equipment & Resources</b></span>
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<span style="font-size:78%;">Lab equipment for burette play, worksheets, certificates</span>
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<span style="font-family:Times New Roman,serif;font-size:78%;"><b>Time</b></span>
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<span style="font-family:Times New Roman,serif;font-size:78%;"><b>Teacher Actions</b></span>
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<span style="font-family:Times New Roman,serif;font-size:78%;"><b>Students Actions</b></span>
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<span style="font-size:78%;">01:25:00</span>
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<span style="font-size:78%;">Roll call and Introduction</span>
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<span style="font-size:78%;">Listening</span>
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<span style="font-size:78%;">I have got a problem</span>
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<span style="font-size:78%;">On Board: Titration prac overview, worksheets</span>
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<span style="font-size:78%;">01:30:00</span>
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<span style="font-size:78%;">Titration Overview</span>
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<span style="font-size:78%;">Writing Listening and answering questions</span>
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<span style="font-size:78%;">Hey what happens when I don’t have all the information</span>
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<span style="font-size:78%;">Overhead</span>
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<span style="font-size:78%;">01:45:00</span>
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<span style="font-size:78%;">Guiding students</span>
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<span style="font-size:78%;">Get familiar with Burette hands on lab component</span>
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<p class="western">
<span style="font-size:78%;">Why would we need to wash the burette? </span>
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<span style="font-size:78%;">What applications would this type of equipment be useful for?</span>
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<span style="font-size:78%;">Lab set Up</span>
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<span style="font-size:78%;">02:20:00</span>
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<span style="font-size:78%;">Worksheet Completion</span>
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<span style="font-size:78%;"><eg answer="" discussion=""></eg></span>
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<span style="font-size:78%;"><br /></span></td>
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<span style="font-size:78%;">Certificates</span>
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