laboratory instruction

Molar Volume of Gas - Lab Tip

Face to face professional development provides the opportunity for teachers to learn from and share with other teachers. This post provides an example of one of the many great ideas that I have learned from other teachers. 

That’s What Scientists Do!

As I began to prepare my labs for this upcoming year, I decided to put a bit of a twist on a previous density of a block lab I had used in the past entitled the Measurement Challenge that is sold by Flinn Scientific. It can also be used to find the mass of a block given the materials density and requiring students to measure and calculate the blocks volume. My added twist resulted in great scientific discourse. 

Flinn Chemventory

The Flinn website sums up their software with these sentences, "Flinn’s Online Chemventory™ Inventory Management System(link is external) is a cloud-based lab management system that allows multiple users on multiple devices from multiple locations! Available as a 1-Year, 3-Year or 5-Year license.

The Teacher Page - An Organizational Tool

The Teacher Page includes all of the notes I need to set up, run, and clean up the particular experiment. I record from whom I obtained the lab. I list the location of chemicals in the stockroom. I've added what does and does not work, so that I don't have to remember it from year to year. I have notes of things to try in the future. The most important part, however, is the giant spreadsheet to calculate amounts of chemicals needed to make multiple volumes of solutions. This saves so much time and repeated effort!

A Better Way to Organize Laboratory Equipment

I decided to take the time and to do some needed inventory.  I wanted to match equipment to its designated table.  Next, I wanted to make sure that each of my eight lab tables had the proper equipment needed to eliminate no more missing equipment.  Sure enough, as I began the inventory project, I had several tables missing equipment, so once everything was laid out and counted and organized then I had to make sure it was going to stay that way.  I had several rolls of colored tape and it was easy to then begin marking each of the pieces of equipment and glassware with tape.