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Programming,concepts and skills

sequence to create a program in scratch,you need to think systematically about the order of steps=
iteration(looping) forever and repeat can be used for iteration=
conditional statements if and if-else check for a condition=
variables the variables blocks allow you to create variables and allow you to create variables and use them in a program. The variables can store programs or strings.Scratch supports both global and object specific variables=
lists (arrays) the list blocks allow for storing and accessing a list of numbers and strings.this kind of data structure can be considered a "dynamic array".= event handling
Keyboard input ask and wait prompt users to type. answer stores keyboard input=
random numbers pick random,select random integers within a given range=
boolean logic and or not are examples of boolean logic.=
dynamic interaction mouse_x, mouse_y, and loudness can be used as dynamic input for real time interaction=
user interface design you can design interactive user interfaces in scratch- for example using clickable sprites to create buttons=