This course has been designed and prepared for CBSE 11th students based on CBSE 2020-21 revised syllabus for Computational Thinking and Programming - 1(Unit-2) of Computer Science (Code no.083).
This course has been divided into three sections.
Familiarization with the basics of Python programming: a simple “hello world" program, the process of writing a program (Interactive & Script mode), running it and print statements; simple data-types: integer, float and string.
Features of Python, Python Character Set, Token & Identifiers, Keywords, Literals, Delimiters, Operators.
Comments: (Single line & Multiline/ Continuation statements), Clarity & Simplification of expression
Introduce the notion of a variable and methods to manipulate it (concept of L-value and R-value even if not taught explicitly).
Knowledge of data types and operators: accepting input from the console, assignment statement, expressions, operators and their precedence.
Operators & types: Binary operators-Arithmetic, Relational Operators, Logical Operators, Augmented Assignment Operators.
Execution of a program, errors- syntax error, run-time error and logical error.
Conditional statements: if, if-else, if-elif-else; simple programs: e.g.: absolute value, sort 3 numbers and divisibility of a number.
Notion of iterative computation and control flow: for(range(),len()), while, using flowcharts, suggested programs: calculation of simple and compound interests, finding the factorial of a positive number etc.
Strings: Traversal, operations – concatenation, repetition, membership; functions/methods–len(), capitalize(), title(), upper(), lower(), count(), find(), index(), isalnum(), islower(), isupper(), isspace(), isalpha(), isdigit(), split(),
partition(), strip(), lstrip(), rstrip(), replace(); String slicing.
Lists: Definition, Creation of a list, Traversal of a list. Operations on a list - concatenation, repetition, membership; functions/methods–len(), list(),append(), extend(), insert(), count(), index(), remove(), pop(), reverse(), sort(),
min(), max(), sum(); Lists Slicing; Nested lists; finding the maximum, minimum, mean of numeric values stored in a list; linear search on list of numbers and counting the frequency of elements in a list.
Tuples: Definition, Creation of a Tuple, Traversal of a tuple. Operations on a tuple - concatenation, repetition, membership; functions/methods – len(), tuple(), count(), index(), sorted(), min(), max(), sum(); Nested tuple;
Tuple slicing; finding the minimum, maximum, mean of values stored in a tuple; linear search on a tuple of numbers, counting the frequency of elements in a tuple.
Dictionary: Definition, Creation, Accessing elements of a dictionary, add an item, modify an item in a dictionary; Traversal,functions/methods – len(),dict(), keys(), values(), items(), get(), update(), del(), del, clear(), fromkeys(), copy(), pop(), popitem(), setdefault(), max(), min(), count(),sorted() copy(); Suggested programs : count the number of times a character appears in a given string using a dictionary, create a dictionary with names of employees, their salary and access them.
Introduction to Python modules: Importing math module (pi, e, sqrt, ceil,floor, pow, fabs, sin, cos, tan); random module (random, randint,randrange), statistics module (mean, median, mode).
Notes :- This course is intended for purchase by adults like parents or guardian.
