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Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.1.

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Presentation on theme: "Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.1."— Presentation transcript:

1 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.1

2 2

3 3 Importance of Math Frequently used in health care Requires 100% accuracy Errors can have dire consequences

4 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.4 Math Anxiety Common problem Impedes performance Can be overcome Myths Mind games

5 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.5 Basic Calculations Whole numbers –Add –Subtract –Multiply –Divide

6 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.6 Decimals Expressed in units of ten Placement values Zero used before decimal point if number begins to right of decimal point

7 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.7 Working with Decimals Placement of decimal –Add –Subtract –Multiply –Divide

8 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.8 Fractions Represents part of a whole Numerator Denominator

9 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.9 Working with Fractions Add Subtract Multiply Divide Improper fractions Reducing fractions

10 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.10 Percentages Expresses whole or part of a whole Whole expressed as 100% Convert to a decimal and then perform calculation

11 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.11 Ratios Show relationships between numbers or like values Compare presence of one value to another Frequently used to express the strength of a solution

12 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.12 Rounding Numbers What does it mean? –Round up –Round down

13 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.13 Solving with Proportions Statement of equality between two ratios Use for converting from one unit to another Steps for solving problems

14 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.14 Estimating Anticipates the results To determine if answer is reasonable Calculating the approximate answer

15 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.15 Military Time Use of a 24-hour clock No AM or PM used Avoids errors 12 th hour is noon 24 th hour is midnight

16 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.16 Military Clock

17 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.17 Roman Numerals Arabic versus Roman Numerals All numbers are from seven key numerals –I, V, X, L, C, D, M

18 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.18 Roman Numerals Rules If smaller numeral is in front of a larger numeral If smaller numeral is after a larger numeral Repeating same numeral Limit to number of times numeral is placed next to itself

19 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.19 Angles Comparison to a reference plane Using angles in health care Degree is unit of measurement

20 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.20 Angles

21 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.21 Systems of Measurement Three systems of measurement –Distance (length) –Capacity (volume) –Mass (weight) Nomenclature is a method of naming Need to convert between systems

22 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.22 Household System Used in the United States Nomenclature for distance/length Nomenclature for capacity/volume Nomenclature for mass/weight Common equivalents How to convert

23 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.23 Metric System Used in Europe More accurate and easier to use Nomenclature for distance/length Nomenclature for capacity/volume Nomenclature for mass/weight Converting units by moving the decimal

24 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.24 Apothecary System Oldest and least used Nomenclature for capacity/volume Nomenclature for mass/weight Common equivalents How to convert Roman numerals and abbreviation for half

25 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.25 Converting Systems Why converting between systems is needed in health care Common equivalencies between systems Equivalencies frequently not exact Steps to convert

26 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.26 Temperature Conversion Fahrenheit (F) used in the United States Centigrade (C) used in Europe Boiling point and freezing point comparisons Converting between Centigrade and Fahrenheit readings

27 Copyright © 2007 by Thomson Delmar Learning. ALL RIGHTS RESERVED.27 Temperature Scales


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