Codesters

Codesters

• Coding Rules and Concepts Key Concept: In programming, syntax refers to the rules that specify the correct combined sequence of symbols that can be used to form a correctly structured program using a given programming language.  Codesters teaches the programming language Python. und them an

  
  

Rules

• Image labels must have quotes around them " "

• All Codesters image labels use lower case letters

• Image labels must have parentheses around them ( )

• Numbers do not have quotes around them and appear blue in the code editor

• Strings have quotes around them and appear green in the code editor

• Quotes " " and parentheses ( ) always come in pairs

Common Errors

Order matters when you give a sprite an action. For example, if you tell a sprite to move left and then create the sprite, the computer will not know how to apply the action to the sprite as it technically doesn't exist yet. The command that creates the sprite should always come first, followed by the command for that sprite.

Things to Check

Check for missing quotes or parentheses. Students may use single quotes or two single quotes. Students may delete one quote.

Check for misspelled words. Many students are used to relying on spell check and auto-correct, but these don’t exist in coding. The computer may not be able to understand commands if words are misspelled.

Check the color of the text. Text in quotes should turn green. Numbers should turn blue.

Info

It doesn’t matter if there are no spaces or several spaces between lines of code. Students can practice keeping their code organized and readable by thinking about the order from top to bottom and by using consistent spacing.

Programmers often refer to parentheses as parens for short.

Sprite

a character, shape or text object that can be added to the stage

stage

the area where the program's visual output is displayed

instructions

steps that follow for each activity in a lesson

toolkit

the place in Codesters that contains the different commands and their syntax which can be dragged into the code editor

syntax

rules that define the way that code must be written

Bug

a problem in the code that either stops the program from running or causes the program to have unintended results

Debugging

the process of reviewing code and removing any bugs