Activities

Building Molar Mass

Building Molar Mass, molar mass calculations, mole calculations

An advantage to teaching on the trimester schedule allows me the opportunity to teach the same course again roughly twelve weeks later. So after grading my 2nd trimester students’ Chemistry B final exams, I was able to evaluate certain topics that caused my students problems, reflect on my teaching, and then determine how I was going to better prepare my students in the 3rd trimester chemistry B class.

Time required: 

1 class period

Writing Conversion Factors

Writing Conversion Factors Preview

This worksheet is intended to be used as a "Guided Instructional Activity" (GIA). Students read a statement that gives a either a conversion factor or a pair of related measures and then write the information as two equivalent fractions ("conversion factors") and as an equality. In each representation, students are directed to give the numeral of the measure, unit, and identity of the chemical.

Time required: 

35 to 45 minutes.

Stoichiometry Guided Instructional Activities with Guide Framework

Initial framework for use with stoichiometry GIAs

This set of three worksheets are intended to be used as collaborative "Guided Instructional Activities" (GIAs). Two students cooperate to complete the steps of a stoichiometry problem, alternately doing parts of the process as they explain what they are doing and evaluate their partner's work. These worksheets emphasize an algorothmic approach that helps students learn to think aobut the purpose of a question, organize their work, set it up so that it is easily readable and can be followed by others, and make good use of "unit analysis" (dimensional analysis).

Time required: 

Each of the activity worksheets requires 40 to 55 minutes.

Mole Conversion Guided Instructional Activities

Mole Converstion Guided Instructional Activity Preview

The three "Guided Instructional Activities" in this activity are three cooperative learning pieces in which students are guided through the process of converting from one unit to moles (or moles to a unit) by the method of "unit analysis" (dimensional analysis). Students alternate steps in the process and evaluate the success of each step. They must do things such as writing the given information correctly, finding the correct molar mass, setting up the mathematics correctly, and determining the answer to a required number of significant figures.

Time required: 

Each of the activities requires about 40 to 55 minutes. The first one used usually takes longer, the last goes quicker.