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Chapter 1

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)

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Chapter 1

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  1. Chapter 1 Basic Concepts

  2. §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

  3. §1.2 – Order of Operations • Exponents • PEMDAS • Examples

  4. §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

  5. §1.4 – Formulas • Handout and discuss formula sheet • Problems 1.4 #6, 12, 24, 32 • Graded Activity #1

  6. §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

  7. §1.9 – English System • Distance • Inches, feet, yards, miles • Time • Seconds, minutes, hours • Weight • Ounces, pounds • Problems 1.9 #22, 34

  8. §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 527.8914 to: • Hundreds, tens, ones, tenths, hundredths

  9. §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

  10. §1.14 – Part, Base, and Rate • Percentage applications • P = part (percentage) • B = base • R = rate (percent) • Formulas • Examples • Find 90% of 200 • 700 is 43% of what amount • What percent of 12.05 is 7.26 • Graded Activity 2

  11. §1.15 – Powers and Roots • Discuss powers • Calculating • By hand • On calculator • Discuss roots • Calculating • By hand • On calculator

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