Computer Science

a list or array that has both columns and rows of values

a sequence of instructions with an identifiable name that performs a specific task

2D lists challenge

String handling

Substrings

String manipulation

Arrays and lists

List methods

2D arrays and lists

Programming project - Sense HAT I

Programming project - Sense HAT II

This unit introduces pupils to string-handling techniques, they will explore how a string can be iterated over using a loop and sliced to create substrings. Pupils will be introduced to arrays and lists and explore the differences between the two. They will manipulate with a variety of list methods.

Programming: strings and lists

a list that has both columns and rows of values

a function in Python that creates lists automatically

In Python, how would you access the element in the third row and second column of a 2D list named 'board'?

What is the purpose of the `int()` function when taking user input for coordinates in the game?

Which statement correctly updates the user_board by placing an ‘X’ in row 1, column 3?

A {{}} list is a list that contains other lists, allowing data to be organised in rows and columns.

What will be the output of the following code?
```grid = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
print(grid[1][2])```

A 2D list is a list that contains other {{}}, allowing us to store data in a row and column format.

What will be the output of this subroutine?
```def greet(name):
    return "Hello, " + name + "!"

print(greet("Alice"))```

a collection of values stored in a single variable

a list that contains multiple lists inside it

a function or procedure that performs a task

Which of the following correctly defines a subroutine in Python?

What will be the output of the following code?
```my_list = [10, 20, 30, 40]  
print(len(my_list))```

A list can contain mixed {{}}, e.g. `[1, "hello", 3.14]`

This lesson will be removed by end of Summer Term 2025.

2D lists challenge

Lesson outcome

This lesson will be removed by end of Summer Term 2025.