10C Arrays

Presentation

•

Computers

•

10th Grade

•

Easy

Roy Duguid

Used 16+ times

FREE Resource

34 Slides • 7 Questions

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1. Log in

go to paper 1 programming
go to arrays 2
complete Do Now

Do Now answers

Big Question:

How can arrays be used to store and manipulate data?

How are elements stored and accessed in a one-dimensional array?
What are the benefits of using arrays for storing multiple elements?
How are two-dimensional arrays structured and utilized?

Key words: array, element, index, One-dimensional array, Multi-dimensional array

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

"Eva"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

"Eva"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

"Eva"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Deniz",

"Donny"

"Eva"

Making a 1D list

"Alexandra"

"Amir",

"Ana",

"Daria",

"Donny"

"Eva"

Knowledge organiser

Questions ahead...

Multiple Choice

What term is used to describe an individual position of an element in an array?

Index

Pointer

Variable

List

Fill in the Blanks

friends = ["Bob", "Sally", "Jane"]

print(friends[?])

What number prints sally?

Multiple Choice

friends = ["Bob", "Sally", "Jane"]

print(friends[?])

I want to add “Tim” to the list, what do I do?

Append.friends(pop[“Tim’])

append.friends(“Tim”)

friends.append(“Tim”)

Multiple Choice

The following array is created in a program: " DIREWOLVES = ["Nymeria","Shaggy Dog","Ghost","Lady","Grey Wind","Summer"]

What is the item stored in DIREWOLVES [2] ?

"Shaggy Dog"

"Ghost"

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

array = [ [x, x, x] ,
[x, x, x] ,
[x, x, x] ]

Turn and talk

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Turn and talk

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

15

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

30


Fanta	10	11	12

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30


Fanta	10	11	12

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30


Fanta	10	11	12

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30


Fanta	10	11	12

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	18	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	20	17
Irn-Bru	19	24	30

Making a 2D list

	May	June	July
Coca-cola	25	20	15
Pepsi	21	20	17
Irn-Bru	19	24	30

Questions ahead...

Multiple Choice

A program contains a 2D array ("CUSTOMER") storing customer numbers, first names and surnames

What data is held in stored in CUSTOMER [0] [2]?

1004

Smith

Amrit

1003

Multiple Choice

A program contains a 2D array ("CUSTOMER") storing customer numbers, first names and surnames

Where in the array is the data item "Kahn" stored?

(2,3)

(4,1)

(2,2)

(3,3)

Multiple Choice

A program contains a 2D array ("CUSTOMER") storing customer numbers, first names and surnames

What data is held in stored in CUSTOMER (2,0)?

Amrit

Kahn

Taylor

1003

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