Overview of CheMentor Introduction Objectives Role of the student Role of the software Design Elements Types of Module The Menu System Individual Modules - details and on-line samples: Significant Figures Unit Factors Isotopes Ion Recog/Writing Formulae Rec/Writg Mass/Mole Conversions %Composition (Cmpds) Oxidation Numbers Periodic Table Ions Reference Molar Mass Calculator Empirical and Molecular Formulae Reviews of CheMentor Pricing and Ordering Download a Demo CheMentor Home Page

The Ion Recognition and Writing Module

This is a 'Practice' module, consisting of six programs. Three of the programs are of the 'Recognition' variety i.e., they present you with a formula of an ion and ask you to identify it. You select from a set of answers that are given on-screen. These programs will present (a) cations only, (b) anions only and (c) anions and cations. The remaining three programs are aimed at having you write the formula for an ion. You will be presented with the name of an ion and you have to type the formula into a box and the charge on the ion into another box. Your answer is then judged for correct use of Upper and Lower case letters, correct ions, charges, subscripts and parentheses. Your answers are judged and incorrect responses are highlighted. Each type of program (writing or recognition) has a Test component. You can take tests containing 10, 20 or 30 questions. As you answer each question, the program saves its feedback and responds only by presenting another question. At the end of the test the 'Review Answers' button will appear and this will allow you to cycle through the test questions, see what you gave as an answer, and the feedback that the program had for each of your answers. Try out the program - it should have appeared in the area below. About the buttons you will see on the screen ...

The 'New' button - generates a new exercise The 'Practice' button - click to work in practice mode - you can work as many examples as ofter as you like The 'Test' button - click to work in Test mode - where you will be given one of three tests containing 10, 20 or 30 exercises.

The 'Restart' button - clears the scoreboard and starts a new series of exercises The 'Judge' button - click this to have your answer checked

The 'Quit Practice' button - not active in this demo, it would return you to the CheMentor main menu The 'Activity Menu' button - returns you to the menu for the module so that you can select another type of exercise

Link to the other modules ...