Chapter 1 Basic Concepts

§1.1 – Basic Operations Addition and Subtraction – Example 3, p. 4 Multiplication – Different forms ( ×, dot, parenthesis) – Ohm’s law: E = I × R (voltage = amps × ohms) Division –Divisor, dividend, quotient, remainder –Different forms (÷, /, fractions) Ex: 204 ÷ 4 Ex: 534 / 24

§1.2 – Order of Operations Exponents PEMDAS – Examples

§1.3 – Area and Volume General discussion: Length and Area Rectangles: L = W × H – Problem 1.3 #12 General Discussion: Volume – Problems 1.3 #24, 34

§1.4 – Formulas Handout and discuss formula sheet – Problems 1.4 #6, 12, 24, 32 Graded Activity #1

§1.6 thru 1.8 – Fractions Fractions – Equivalent fractions and simplifying – Mixed numbers and converting – Addition and subtraction – Multiplication and division Problems 1.7 #18, 46, 86 Problems 1.8 #30, 56, 80

§1.9 – English System Distance – Inches, feet, yards, miles Time – Seconds, minutes, hours Weight – Ounces, pounds Problems 1.9 #22, 34

§1.10 thru 1.12 – Decimals Converting fractions to decimals Arithmetic with decimals – Problems 1.10 #58, 64 – Problems 1.12 #46, 62 Rounding – Ex: Round to: Hundreds, tens, ones, tenths, hundredths

§1.13 – Percent Figure 1.33 (p. 69) Conversions – Percent to decimal – Decimal to percent – Percent to fraction – Fraction to percent Problem 1.13 #81 – students do on printout

§1.14 – Part, Base, and Rate Percentage applications P = part (percentage) B = base R = rate (percent) – Formulas – Examples Find 90% of is 43% of what amount What percent of is 7.26 – Graded Activity 2 To find partTo find baseTo find rate

§1.15 – Powers and Roots Discuss powers – Calculating By hand On calculator Discuss roots – Calculating By hand On calculator