Stoichiometry - How the students do it.
Chad Husting | Tue, 03/27/2018 - 14:43
A discussion of how students solve stoichiometry problems.
stoichiometry
Some Like it Hot
Lauren Stewart | Thu, 03/15/2018 - 11:39
In my class, I use the illustration of a mountain to help students push through the challenges of chemistry. Stoichiometry is the top of chemistry mountain. As we progress through the year, I say things like “the mountain is getting steep here!” or “there is not a lot of oxygen up here!” or “I will carry you up chemistry mountain if I have to!” to keep students motivated. When students finally get to the top of chemistry mountain (mid quarter 3), the air is thin, they are tired and they are ready to base jump off the mountain (see illustration from a former student below).
Especially JCE: March 2018
Erica Jacobsen | Tue, 03/13/2018 - 07:23
Erica Jacobsen shares highlights from the March 2018 issue of the Journal of Chemical Education.
Follow-Up: Inspired to try something new with stoichiometry
Lowell Thomson | Fri, 02/23/2018 - 22:55
Inspired by Ben Meacham's post on stoichiometry, I looked to modify the lab sequence for my IB Chemistry class for our unit on stoichiometry. I will describe my experience modifying a typical empirical formula lab, along with using a modified version of the lab Ben shared.
Using Evidence to Determine the Correct Chemical Equation: A Stoichiometry Investigation
Ben Meacham | Mon, 01/15/2018 - 00:09
Whether you are looking to add a bit more scientific inquiry to your labs or simply looking for a great stoichiometry lab that can be added to your collection, I encourage you to try something like this with your students!
The Two Words Every Chemistry Student Needs to Learn
Gary Abud | Tue, 08/29/2017 - 16:57
Teaching students the proportional reasoning skills needed for stoich doesn’t have to be that daunting. By adjusting how your students talk about stoich, you will adjust how they think about it; eventually, they’ll proportionally reason in a more effective manner.
This post was submitted for the 2017 ChemEd X Call for Contributions: Creating a Classroom Culture.
Increasing Access to Stoichiometry Through Differentiated In-Class Practice
Tracy Schloemer | Tue, 07/04/2017 - 10:24
In a recent post, I shared sample quiz questions as to how I have differentiated assessment within the mole unit. Here, I share a specific multi-day sequence within the stoichiometry unit. I have written extensively about the project that drives this unit (within the following blog posts: Why consider trying project based learning?, Backwards planning your PBL unit - An Overview of an Entire Unit and What ARE my students actually learning during this long term project (PBL)?), but very little about specific learning tasks. Below is a two day sequence of stoichiometry practice that I set up in my classroom. Stations are set up around the room and students rotate as necessary.
Using Visual BCA Tables to Teach Limiting Reactants
Melissa Hemling | Wed, 04/26/2017 - 11:10
Looking for a better way to teach stoichiometry? Melissa incorporates modeling into BCA tables.
Moles, Formative Assessment and Moving Forward....
Chad Husting | Sun, 03/05/2017 - 11:16
Formative assessment can be a double edged sword. It can be and often is extremely helpful. Some quick short three or four well worded questions at the beginning of a unit provides information about student abilities. A teacher can skip teaching information that kids already know or the teacher can discover concepts that he or she assumed students know but do not. Formative assessment about "Moles" can provide data that is hard to deal with. Can the students handle scientific notation? How well are students at basic math skills?
Titration of an Esterification Reaction to Determine Equilibrium Constant
Lowell Thomson | Wed, 09/21/2016 - 08:44
This activity was submitted for a 2016 ChemEd X Call for Contributions soliciting input regarding the big ideas being put forth by organizations like AP. The author shares a lab activity that relies on connections - between stoichiometry, esterification, equilibrium, kinetics, titrations and uncertainty of calculations. He also shares the resources he created.