Intro to Computer Science
Intro to Computer Science
powered by cs50
Today is Friday
October 24th , 2025
We are in week 5
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Lectures
Week 6
Tuesday: Getting Started with own IDE |
Objectives:
- Register for an edX account and set up their programming enviroment via cloud9
- Utilize some basic linux commands (mkdir, ls, cd, rm, mv, touch, update50)
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| Notes: GOOGLE DOC |
| Homework: Log into your cs50 IDE from home. Notes will walk you through if your were absent. Also watch the following video. |
| Where it all began: VIDEO |
Wednesday - Thursday: Starting to Code |
Objectives:
- Write and compile our first c-Program named hello.c
- Utilize make, check50, style50, clang, make
- What is the newline character
- Edit source code and rerun program
|
| David writes first program and explaines IDE: VIDEO |
| David relating Stratch to c: VIDEO |
| Hello PSET: HTML |
Week 7
Monday: Variables |
Objectives:
- Define a variable and discuss what it can do
|
| Notes: PDF |
| David on variables: VIDEO |
| cs50 SHORT on variables: VIDEO |
| For Hackers: Doug on variables SCOPE: VIDEO |
Tuesday - Wedneday: Variables Continued |
Objectives:
- Review all data types
- Write a program div_0.c that prompts users for two numbers and prints the quotient to the screen
- Round a float to 27 decimals places and discuss floating point imprecision
|
| cs50 Page on Data Types: HTML |
| Homework: Finish / CleanUp programs completed in class |
Thursday: Integer Overflow |
Objectives:
- Review all data types
- Update yesterday's float_imp.c with doubles
- Write a short program that demonstrates integer overflow
|
| David on variables on physical structures i.e. MEMORY: VIDEO |
| Homework: Finish / CleanUp programs completed in class |
Friday: Modulus |
Objectives:
- Write a program that prompts user for two values and prints the remainder after division
|
| Homework: TBA |
Week 8
Monday: Formula |
Objectives:
- Write a program that calculates Denisty for a user when given mass and volume
- Start the basics of the quadratic formula program
|
| Homework: Finish what we worked on in class |
Tuesday - Thursday: Fahrenheit |
Objectives:
- Work on Fahrenheit PSET
- Hacker Option 1: Write convert_1.c that converts from F to C
- Hacker Option 2: Write convert_2.c that asks user which way to convert
|
| Farenheit PSET: HTML |
| Homework: Work on the PSET or hacker additions. |
Friday - WHILE Loops |
Objectives:
- Identify the three main constructs in a WHILE loop
- Write while_0.c, while_1.c, and while_2.c
|
| cs50 Short On Loops: VIDEO |
| Homework: Finish watching the cs50 short on loops and finish writing countdown.c |
Week 9
Monday: FOR Loops |
Objectives:
- Write two equivalent countdown programs first using a WHILE loop then using a FOR LOOP
|
| Homework: Finish Problems Started in Class |
Tuesday - Wednesday: DO WHILE Loops |
Objectives:
- Watch video segment on DO WHILE loops
- Implement a DO WHILE loops in our 'add.c' program.
|
| Doug on Loops: VIDEO |
| Homework: Finish doWhile 0 - 2 . c files |
Thursday: Problem Solve Day |
Objectives:
- Work on the problems in the GOOGLE DOC
|
| CLASSWORK: GOOGLE DOC |
| Homework: Breathe |
Friday: Loops for repeated multiplication |
Objectives:
- Write a program that does exponential arithmetic with and without math.h
|
| Homework: Write a program that does exponential computations. Try to account for all corner cases. Big numbers, 0 to the 0, only positive exponents, etc. |
Week 10
Monday - Wednesday: Pennies |
| Objectives:
|
| Pennies PSET: HTML |
| Homework: Work on Pennies |
Thursday: Investigating Mod and Division |
Objectives:
- Write a program that uses mod to print out each digit of a positive integer on a separate line
|
| Homework: Complete mod_0.c mod_1.c and mod_2.c started in class |
Friday: Rounding and Type Casting |
Objectives:
- Type cast a float to an int
- Use the round() function to round (not floor) a decimal
- Use the cs50 reference website
|
| Type Casting: VIDEO |
| Homework: Enjoy the weekend |
