Coding Levels for Strings and Safe Input

Seven lessons on slicing strings, output that lines up, checking input, try and except and a cipher, ending with a sign-up checker. Each level is a short program students write and check in CodeGrove.

Slices and String Methods

Lesson 2.1

2.1 Try It Open
Slice Shop Open
2.1 Try It 2 Open
Word Rules Open
2.1 Quiz Task Open

Output That Reads Well

Lesson 2.2

2.2 Try It Open
Receipt Printer Open
2.2 Quiz Task Open

Check the Input: Ranges, Formats and Characters

Lesson 2.3

2.3 Try It Open
Sign-Up Desk Open
2.3 Quiz Task Open

Try, Except and Error Codes

Lesson 2.4

2.4 Try It Open
2.4 Try It 2 Open
Safe Order Form Open
2.4 Quiz Task Open

Secret Codes: A Cipher

Lesson 2.5

Cipher Lab Open
2.5 Quiz Task Open

How Attackers Use Bad Input

Lesson 2.6

2.6 Break It, Fix It Open
2.6 Quiz Task Open

Build: A Sign-Up Checker

Lesson 2.7

Sign-Up Build Open

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