This lesson continues the concepts of mathematics introduced in Percent, Ratio, and Proportion.
Positive and Negative Numbers, Powers, and Roots (A4305)
This lesson is designed to build on the skills presented in the fourth lesson of this program, Percent, Ratio, and Proportion.
This lesson introduces the concepts of positive and negative numbers, powers and roots. Participants learn how to use positive and negative numbers in addition, subtraction, and multiplication. Additionally, the lesson explains formulas and how to use them. The concepts presented in this lesson are designed to prepare participants for algebra.
Describe the concept of positive and negative numbers. Recognize positive and negative values and their opposites. Add, subtract, multiply and divide positive and negative numbers using pencil and paper. Use the plus/minus key to enter negative values on the calculator. Add, subtract, multiply and divide positive and negative values using a calculator. Use positive and negative numbers to describe deviation from a target value. Recognize a power. Describe the concept of a squared number. Square numbers by multiplication using pencil and paper. Square numbers by multiplication and by using the square key on a calculator. Describe the concept of a square root. Recognize perfect squares and their square roots. Use the square root key on a calculator to find square roots. Estimate answers to problems that involve positive and negative numbers, squares and square roots. Use formulas that involve squares and square roots. Solve problems involving positive and negative numbers, powers and roots.
APPLIED MATHEMATICS (9)
This lesson reviews the basic concepts of comparing, rounding, adding, subtracting, multiplying, and dividing whole numbers. It also reviews the steps for solving addition, subtraction, multiplication, and division problems. Participants learn about using estimating techniques and the calculator to solve mathematical problems. Participants also learn about a basic problem-solving strategy that can be applied to solve many mathematical problems. The first in a nine lesson series.
This lesson provides instruction in mathematical operations that require the use of decimals. Participants learn how to read decimal numbers as well as compare their values and round them. Participants also learn how to add, subtract, multiply and divide decimals, both with pencil and paper and with a calculator. The lesson provides many examples of applications at home and at work. The second in a nine lesson series.
In this lesson, participants learn how to draw comparisons between one amount and another. The concepts of percent, percentage, and base are taught and the relationship of these concepts to each other. Participants also learn how to find percent, percentage, and base by using paper and pencil as well as with a calculator. In addition, the lesson explains the concepts of ratio and proportion. This lesson teaches how to identify and construct both a ratio and proportion. Participants also learn how to use proportions to convert measurements from English to metric units. The fourth in a nine lesson series.
This lesson introduces the concepts of positive and negative numbers, powers and roots. Participants learn how to use positive and negative numbers in addition, subtraction, and multiplication. Additionaly, the lesson explains formulas and how to use them. The concepts presented in this lesson are designed to prepare participants for algebra. The fifth in a nine lesson series.
This lesson reviews the concepts and basic procedures of recognizing, converting, and solving problems using the English and the metric measurement systems. It introduces strategies that participants can apply to estimate metric and English equivalents as well as solving measurement problems with or without a calculator. In addition, participants learn the process of setting up and solving measurement problems with multiple conversions using unit analysis. The seventh in a nine lesson series.
This lesson teaches participants the basics of plane and solid geometry. It also specifically prepares participants to use geometric formulas in solving everyday problems. Topics presented in this lesson include the concepts of perimeter, area, and volume. Each topic introduces the appropriate formulas for determining the measurements of the most common geometric shapes. The eighth in a nine lesson series.
This lesson provides an introduction to some basic principles of statistics. Emphasis is on statistical functions that are most commonly encountered in the workplace and everyday life. The topics covered include construction and interpretation of charts and graphs. The lesson also explains averages such as mean, median and mode and the appropriate use of each. The ninth in a nine lesson series.