# C HAPTER T WO Sections 1, 2, 3, 5, 7. G ETTING S TARTED, P. 67 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.

## Presentation on theme: "C HAPTER T WO Sections 1, 2, 3, 5, 7. G ETTING S TARTED, P. 67 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23."— Presentation transcript:

C HAPTER T WO Sections 1, 2, 3, 5, 7

G ETTING S TARTED, P. 67 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23.

S QUARE N UMBERS … L IVE ’ EM, L EARN ’ EM, L OVE ’ EM 1 2 = 2 2 = 3 2 = 4 2 = 5 2 = 6 2 = 7 2 = 8 2 = 9 2 = 10 2 = 11 2 = 12 2 = 13 2 = 14 2 = 15 2 = 16 2 = 17 2 = 18 2 = 19 2 = 20 2 =

V OCABULARY Absolute value Additive inverse Positive number Frequency Integers Irrational number

V OCABULARY Line plot Measures of central tendency Natural number Negative number opposites Perfect square

V OCABULARY Principal square root Probability Rational number Stem and Leaf Plot Real number Infinity Square root Whole number

T REE MAP R EAL N UMBER S YSTEM

T RUE OR F ALSE ? If a number is rational, then it is a whole number. If a number is natural, then it is a whole number. If a number is an integer, then it is a rational number. All natural numbers are integers.

T RUE OR F ALSE ? All rational numbers are real numbers. All irrational numbers are whole numbers. All irrational numbers are decimals. All decimals are irrational numbers. All fractions are irrational numbers.

R EAL N UMBERS Real Numbers Questions Real Numbers Chart Homework: The Real Number System ½ worksheet

2-1 Rational Numbers on a Number Line and Absolute Value (worksheet in class in small collaborative groups) 2-2 Adding and Subtractive Rational Numbers (worksheet in class in small collaborative groups) 2-3/2-4 Multiplying and Dividing Rational Numbers (worksheet in class in small collaborative groups- finish for homework) This section continued on the next slide

S IMPLIFYING E XPRESSIONS Distribute the multiplication OR the division to each piece Combine like terms Examples:

2-6 S IMPLE P ROBABILITY AND O DDS Probability: What you want What you got P(6)= P(even)= P(less than 5)= Odds What you want What you don’t want Odds(6)= Odds(even)= Odds(less than 5)=

P ROBABILITY /O DDS P. 99 #14-48 EVENS 14. 16. 18. 20. 22. 24. 26. 28. 30. 32. 34. 36. 38. 40. 42. 44. 46. 48.

2-7 S QUARE R OOTS AND R EAL N UMBER ( LAST SECTION )

W ORKSHEET 2-7 1. 8 2. -93. 4.14. ±10 5. - 2 / 5 6. -117. ± 5 / 12 8. - 5 / 4 9. ± 11 / 10 10. -6011. -2.512. ±0.02 13. 12 / 14 14. - 6 / 7 15. ±1.1 1. Nat, Wh, In, Rat2. Rat 3. Rat 4. Irrat5. Rat6. Nat, Wh, In, Rat 7. Rat8. Irr 9. -5, - 3 / 4, 7 / 4, √25 10. -0.3131…, √0.09, 3 / 5 11. -1.25, - 1 / 4, 0.05, √5 12. -3.11, -2, 5 / 4, √124 13. - √1.44, -0.25, 1 / 5 14. - 9 / 5, 0.35, √5, 2 1 / 3

T EST S TUDY G UIDE 2-1 & 2-7 True or false questions about the real number system (4) 2-1 & 2-7 Identify which set numbers belong to in the real number system (4) 2-1 Find absolute value within expressions (4) 2-3 & 2-4 Multiplying and Dividing Rational Numbers (simplifying expressions) (6) 2-6 Simple Probability and Odds (4 of each) 2-7 Find square roots (5 of each) 2-7 Write sets of numbers in order from least to greatest (3) 2-1 & 2-7

T EST S TUDY G UIDE p. 823 lesson 2-1 #11-14 lesson 2-3 #13-18 p. 824 lesson 2-4 #13-20 lesson 2-6 #7-18 p. 825 lesson 2-7 #1-16, then order #9 – 12 from least to greatest, then order #13 – 16 from least to greatest

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