the process of repeating a sequence of instructions within a program loop

a command that repeatedly runs a sequence of instructions a predefined number of times

a command that repeatedly runs a sequence of instructions until a condition is no longer being met

Count-controlled iteration

Computing

Sequence

Program variables

Selection

Operators

Problem solving using programming constructs

In this unit pupils will build their confidence and knowledge of the key programming constructs (sequence, iteration, selection and variables). Learners will use Scratch to explore the key programming constructs firstly through editing pre-existing code and then by developing their own programs.

Using fundamental programming constructs in a block-based language

repeatedly runs a sequence of instructions a set number of times

repeatedly runs a sequence of instructions until a condition is met

Match the keyword to the correct description.

Iteration can make a program more {{}}, rather than having to have lots of duplicate blocks.

Which block is used in Scratch for iteration?

It reduces the value of life each time the repeat block executes.

It increases the value of life each time the repeat block executes.

What will be output when this program is executed?

Which conditions would evaluate as True with the following inputs?

Match the logic operator to the correct description.

Count-controlled iteration

Lesson outcome