Teaching guide: Trace tables

tables for algorithms in GCSE Computer Science 8525. The first section gives a broad overview of what trace tables are and provides a range of examples for 

GCSE Computer science Question paper Unit 02 - Computing

03-Jun-2015 The completed trace tables for Algorithm 1 and Algorithm 2 are shown below when the array arr is ["kleene" "diffie"

IGCSE 9-1 Computer Science 0984/21 Paper 2 May/Jun 2021

Any blank pages are indicated. Cambridge IGCSE™(9–1). COMPUTER SCIENCE. 0984 (a) Complete the trace table for the input data: 50 75

OCR GCSE (9-1) Computer Science J276/02 Computational

Complete the trace table to test this program. x y output. [4]. Page 17. 17. © OCR 2023. Turn over. (f). A teacher writes an algorithm to store the name of the 

GCSE (9-1) - Computer Science

a given set of data and use a trace table to determine what value a variable will hold at a given point in an algorithm. 1.2.5 understand types of errors 

GCSE (9–1) Computer Science J277/02 Computational thinking

trace table for the given algorithm when the surname “Kofi” and the year 2021 are entered. You may not need to use all rows in the table. Line number.

GCSE Computer Science Student responses with examiner

The algorithm in Figure 4 is the binary search algorithm designed to search for a value within an array. Figure 4. 0 4 . 1. Complete the trace table for the 

Question paper: Paper 1C Computational thinking and programming

I declare this is my own work. GCSE The DIV operator is used for integer division. 1 0 . 1 Complete the trace table for the subroutine call calculate(50).

GCSE (9-1) Computer Science J277 Specification

Students take J277/01 and J277/02 to be awarded the OCR GCSE (9–1) in Computer Science. ✓ Trace tables. ✓ Creating test plans. ✓ Identifying suitable test ...

GCSE Computer science Mark scheme Unit 02 - Computing

MARK SCHEME – GCSE COMPUTER SCIENCE – 4512/2 – JUNE 2015. 3 of 16. Qu Part Sub- The complete and correct trace table is: strIn. isPalindrome iUp iDown.

What is a trace table in Computer Science?

A trace table is a strategy employed to test algorithms, to ensure that no mistakes happen when the algorithm undergoes processing. The trace table... See full answer below. Our experts can answer your tough homework and study questions.

Are there any common mistakes when completing a trace table?

There are some common mistakes that can occur when completing trace tables, even if the person completing the table has fully understood the algorithm. Two of these common mistakes are outlined below, and both provide examples based on the linear search algorithm with an input of 16.

How many columns are in a trace table?

The trace table completed in step 5 contains 4 columns, and the key factor is that all four columns show the values changing in the correct way. The exact placement of the rows and cells is not always fixed, and so there can be different layouts that are still correct, and it may suit different people to complete trace tables with different styles.

How to keep track of multiple variables in a trace table?

Although the algorithm above only contains one variable, trace tables can keep track of multiple variables by using additional columns. The algorithm below is an extension of the algorithm above, and this time the program will also keep track of how many times the while loop has repeated. In this example the user enters an input of 16.