Coding and Computational Thinking Posters | 6 Printable Python and Computer Science Charts | Classroom Decor | 18x24

CODING AND COMPUTATIONAL THINKING POSTERS - a set of 6 printable computer science charts for 6th, 7th and 8th grade. These coding posters cover computational thinking, algorithms, variables, Boolean logic, loops, functions, and debugging code through matched blocks, Python, and output. Print-ready at 18 x 24 inches.

Every concept appears as puzzle-shaped blocks, typed Python, and the exact output it produces, helping students see that the logic stays stable when the notation changes. The charts break down a scoreboard app, trace a largest-number algorithm, compare four data types, follow conditional order, catch loop boundaries, and debug a missing return. Precision technical diagrams use ruled editor panels, monospaced lettering, syntax colors, and separate output windows on deep charcoal-blue.

THE SIX POSTERS
• Decomposition and Abstraction - split a scoreboard app into jobs, then name and reuse an area function
• Algorithms and Pseudocode - write, test and translate finite steps for finding the largest number
• Variables and Data Types - int, float, str and bool, including 7 + 3 versus string joining
• Conditionals and Boolean Logic - if, elif and else order, plus and, or and not
• Loops and Iteration - for and while loops, range boundaries, infinite loops and nesting
• Functions and Debugging - def, return, None and a five-step error-finding routine

GRADE LEVEL

Written for Grades 6 through 8 - 6th, 7th and 8th grade classrooms, and just as at home in a homeschool room, a middle school intervention block, or a 9th grade review wall.

PRINT SIZE

Every poster is a 3:4 ratio, 18 x 24 inch, 300 DPI print-ready PDF. 18 x 24 is the standard poster-frame size, so it fits frames you can buy anywhere, and the same file scales down cleanly to any other 3:4 size: 15 x 20, 12 x 16, 9 x 12, or 6 x 8 - just choose the smaller size in your print dialog.

WHAT'S INCLUDED
• Six individual print-ready PDF posters at 18 x 24 in, 300 DPI
• A one-page Contents sheet showing all six posters at a glance on a single US Letter page
• Print-ready with no bleed or trim setup required
• Opens in any PDF reader on Windows, Mac, Chromebook, or tablet; no fonts or software to install
• BONUS: a claim sheet for our free Literary Elements poster set - six more posters that work in any middle or high school ELA classroom

EASY TO USE

Print the whole set or pick individual posters for focused lessons. Print the Contents sheet first if you would like a one-page reference. For best results, print at the original size or another size with the same 3:4 ratio, and set your printer or print shop to "Actual size" rather than "Fit to page."

HOW YOU RECEIVE YOUR FILES

Instant digital download. Your download contains a one-page PDF with a direct link to the complete poster package. Open it, click the link, and save the zip - your posters are inside, organized and ready to print. Nothing is shipped.