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Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014 Tuesday April 29 1. Hand in permutations/combinations assignment 2. Lesson: Pascal's Triangle 3. Practice 4. Test Thursday/Practice Test
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Page 1: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Tuesday April 29

1. Hand in permutations/combinations assignment

2. Lesson: Pascal's Triangle

3. Practice

4. Test Thursday/Practice Test

Page 2: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

MINDS ON1

1 11 12

1 13 31 4 6

Fill in the missing values in the pattern:

Page 3: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Lesson goals Big Idea

Pascal's Triangle

I can investigate patterns in Pascal’s triangle and the relationship to combinations.

I can use these patterns to solve simple counting problems.

Page 4: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

11   1

1   2   11   3   3   1

1   4   6   4   1 1   5   10   10   5   1

1   6   15   20   15   6   1

Pascal's Triangle

1. What is the pattern used to create each row?

Each number is just the two number above it addes together.

 1 + 3 = 4

Investigation 1

Page 5: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

1. What is the pattern in the second diagonal within Pascal’s triangle?

2. What is the pattern in the third diagonal?

11   1

1   2   11   3   3   1

1   4   6   4   1 1   5   10   10   5   1

1   6   15   20   15   6   1

The counting Numbers (1, 2, 3, ...)

The triangular numbers

2.

3.

Page 6: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

11   1

1   2   11   3   3   1

1   4   6   4   1 1   5   10   10   5   1

1   6   15   20   15   6   1

4. What do you notice about the horizontal sums? Is there a pattern?

The pattern doubles for each row. The powers of 2.

row 0

row 1

row 2

row 3

row 4

row 5

row 6

5. What conclusion could you make about the sum of the terms in the row and the row number?

20=121=222=423=824=16

2(row number) =HORIZONTAL SUM

Page 7: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Naming conventions in Pascal's Triangle

Why is it so? With this way of naming the rows and elements, you can use combination notation to find any value in Pascal's Triangle!

Page 8: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Investigation 2 ­ Pathway ProblemsOn each grid, how many different paths can A take to get to B, assuming that you can only move to the right and down?

a) (b) 

8C4 = 70

0

0

Page 9: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Ataxicompanyistryingtoindthequickestrouteduringrushhourtraficfromthetrainstationtothefootballstadium.Howmanydifferentroutesmustbeconsideredifateachintersectionthetaximustalwaysmoveclosertothefootballstadium?

Page 10: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

SUMMARY

Page 11: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Exit Card

For Option 2:

Determine the number of different ways Kipper can go home if he must avoid the fire hydrant.

Page 12: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

BACK

Page 13: 4. Test Thursday/Practice Testwilson10.weebly.com/.../15615296/4.8._pascals_triangle_2.pdf · 2018-09-07 · Pascal's Triangle and Pathways with Learning Goals.notebook April 29,

Pascal's Triangle and Pathways with Learning Goals.notebook April 29, 2014

Your task(s): 

1. Page 289 # 1, 2, 7, 11, 12

2. Work on the probability unit practice test (we will go over it tomorrow) 


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