Problem Solving and Design

A. show understanding that every computer system is made up of sub-systems, which in turn are made up of further sub-systems

• Systems and subsystems

• Systems and subsystems

• Structure diagrams (needs download)

B. use top-down design, structure diagrams, flowcharts, pseudocode, library routines and subroutines

• Introduction to algorithmic thinking

• Flowcharts and program design

• Flowcharts for practical tasks

C. work out the purpose of a given algorithm

D. explain standard methods of solution

• Planning your solution

E. suggest and apply suitable test data

• Validating data

F. understand the need for validation and verification checks to be made on input data (validation could include range checks, length checks, type checks and check digits)

• Data validation and verification

• Data entry – Validation and Verification

G. use trace tables to find the value of variables at each step in an algorithm

H. identify errors in given algorithms and suggest ways of removing these errors

I. produce an algorithm for a given problem (either in the form of pseudocode or flowchart)

• General problem-solving concepts

• Designing a solution to a problem

• Raptor – a flowchart based programming environment (needs download)

• Turtle academy

• Scratch (online)

• Scratch (offline)

• Scratch introduction

• Scratch activities

• Snap (online)

• Snap reference manual

• Alice 3D programming

J. comment on the effectiveness of a given solution

ZAK Notes