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Particles .. Moles .. Mass - About the Health Rating

 

About Health:

Every time the Check Answer button is clicked or a Difficulty Level is completed, a Health Bar and Health Percent is displayed on the screen. And the same Health Bar and Health Percent is displayed on the Main Menu screen for any Difficulty Level that is completed. Students and Teachers may be interested in how this information is computed. Here's the details:

The Concept Builder keeps track of the number of misses each time you do one of the Difficulty Levels. A miss is considered any value that is entered into a cell and evaluated as incorrect. If a cell value is incorrect on the first attempt and not changed, then it would be marked as a miss on the second attempt. If you do not wish to check that incorrect value again, then you would have to remove the value (tap on the cell to open the Number Pad and tap on the C​ or Clear button)  before the next time that your check your answers. The number of misses continues to be tracked until the table is accurately completed. Then The Health Percent value is calculated using the following formulas:


Apprentice Difficulty Level:  Health Percent = 100 - 3*Number of Misses

Master Difficulty Level:  Health Percent = 100 - 2*Number of Misses

Wizard Difficulty Level:  Health Percent = 100 - 2*Number of Misses


Your Health Percent is displayed on the Main Menu. If you wish to repeat the Difficulty Level to improve your Health Percent, you can tap on the provided button to do so. Your best Health Percent is always displayed on the Main Menu. If you repeat a difficulty level and do worse the second time, it is the best Percent that will be displayed.


 

And What About the CF Hints?

The Concept Builder includes a Hint feature. The Hint feature is marked by a CF button that lies between the various columns. Clicking on the CF button will slide in a screen that explains how to convert between quantities. An example conversion is shown as part of the Hint. In the Apprentice Difficulty Level, tapping on the CF button will not have any effect upon the Heath Percent. In the Master Difficulty Level, tapping on the CF button will have no effect for the first two hints. But the third and the fourth tap on the CF button will result in a 4% deduction in the Health Percent. In the Wizard Difficulty Level, every viewing of a Conversion Factor Hint will result in a 4% deduction in the Health Percent. When tapping on the CF button in the Master and Wizard Difficulty Level, users will be warned that they will have the 4% deduction and be given the opportunity to cancel out. There are four types of conversions and four types of hints: particles to moles, moles to particles, moles to grams, and grams to moles. In the Master and Wizard Difficulty Level, once one of the Hint types has been shown, tapping on a CF button for the same type of Hint will display the Hint a second or third or fourth ... time without any warning or 4% deduction.