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14 February 2011 Algebra 2

14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

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Page 1: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

14 February 2011

Algebra 2

Page 2: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Bellringer:[-2+(-1*4)]+[-2(3+9)] = ?

1 2 3 4 5

20% 20% 20%20%20%

300

1. -142. -303. -184. 185. 6

0 of 30

Page 3: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Agenda 2/14

• Happy Valentine’s Day to my wife.• Grade PSAE Skill packet #1 • Fractions, Decimals, Proportions• PSAE Skill packet # 2

Page 4: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Fractions must always be entered as a number inside a set of parentheses.

Page 5: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Fractions must always be entered as a number inside a set of parentheses.

2/3 = (2 / 3)

-1/2 = (-1 / 2)

4/7 = (4/7)

Page 6: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express as a decimal19

12

Page 7: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express as a decimal

Enter 12 / 19 on your calculator

19

12

Page 8: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express as a decimal

Enter 12 / 19 on your calculator

Calculator answer: 0.631578947368

19

12

Page 9: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express as a decimal

Enter 12 / 19 on your calculator

Calculator answer: 0.631578947368

Answer choices:A. 0.631 D. 0.418B. 0.591 E. 0.924C. 0.632

19

12

Page 10: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express as a decimal

Enter 12 / 19 on your calculator

Calculator answer: 0.631578947368

Answer choices:A. 0.631 D. 0.418B. 0.591 E. 0.924C. 0.632

19

12

Page 11: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express 0.3 as a fraction

Page 12: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express 0.3 as a fraction

Enter 0.3 on your calculator

Page 13: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express 0.3 as a fraction

Enter 0.3 on your calculator

Go to MATH Enter Enter

Page 14: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Fractions, Decimals, Proportions 2/14Fractions

Mathematics.BOA.201Mathematics.BOA.301

Express 0.3 as a fraction

Enter 0.3 on your calculator

Go to MATH Enter Enter

Your calculator will display 3/10

Page 15: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Express 4/7 + 3/5 as a decimal

1. 2. 3. 4. 5.

20% 20% 20%20%20%1. 1.0322. 2.1303. 7.3524. 1.1715. 1.428

60

0 of 30

Page 16: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Express 2/3 + 2/7 as a fraction

1 2 3 4 5

20% 20% 20%20%20%

90

0 of 30

1. 4/102. 2/103. 4/214. 20/215. 3/8

Page 17: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Find the average of 2/5 and 0.8

1. 2. 3. 4. 5.

20% 20% 20%20%20%

0 of 30

1. 0.62. 0.83. 1.04. 1.25. 1.4

90

Page 18: 14 February 2011 Algebra 2. Bellringer: [-2+(-1*4)]+[-2(3+9)] = ? 300 1.-14 2.-30 3.-18 4.18 5.6 0 of 30

Find the average of 2/5 and 2.4

1. 2. 3. 4. 5.

20% 20% 20%20%20%

0 of 30

1. 0.62. 0.83. 1.04. 1.25. 1.4

90