Tutorials & How-To
71 sites
https://vtaide.com/png/puzzles.htm
A collection of interactive browser-based puzzles and logic games designed for children, covering math triangles, magic squares, matchstick puzzles, sliding tiles, river crossing challenges, and sorting activities. Hosted by Virtual Teacher Aide, the site offers hands-on drag-and-click gameplay that builds skills in visual discrimination, number recognition, and logical thinking across multiple difficulty levels.
https://steno.tu-clausthal.de/Pitman.php
A web-based tool hosted at TU Clausthal that converts plain text into various shorthand script systems, including Pitman, Gregg, DEK, Stolze-Schrey, and Suetterlin. The Pitman page demonstrates the converter with classic sample text and also provides shorthand fonts for use with LaTeX.
https://cs.brown.edu/courses/cs092/WIRES/internet.html
Hosted on Brown University's CS department server, this page offers an educational look at how the internet works at a foundational level. Part of the CS092 course materials, it serves as an accessible primer on the technical infrastructure and concepts that underpin modern networking.
https://acesounderglass.com/
Aceso Under Glass is Elizabeth's curiosity-driven blog that digs into practical knowledge ranging from clothing quality and shopping strategies to statistics, queuing theory, and the history of Bell Labs. The tagline 'What if we understood more things?' captures the spirit of a writer who investigates everyday and technical topics with analytical rigor and genuine enthusiasm.
https://ntsc-tv.com/
A deep-dive technical tutorial site covering every aspect of NTSC color television, from scanning and sync to color encoding, digital TV graphics, and VCR circuits. With over 300 URLs spanning 90 subjects, it walks through the full signal chain from antenna to CRT with historical context including the original 1953 NTSC standards.
http://chompchomp.com/
Grammar Bytes! is a lively grammar instruction site offering lessons and exercises with a no-nonsense, attitude-driven approach to teaching English grammar. It is a go-to reference for students and teachers looking for engaging, accessible grammar help beyond the typical dry textbook.
https://ssvincent.tripod.com/
Vincent's Chemistry Page is a study resource aimed at CBSE Plus II students preparing for board exams, offering interactive assignments and syllabus details. It also touches on information about admission to foreign universities, making it a handy academic companion for Indian high school chemistry learners.
https://thistothat.com/
This to That is a practical reference tool that tells you exactly which adhesive to use when bonding any two materials together, covering combinations of ceramic, glass, metal, wood, rubber, vinyl, and more. Running since 1999, the site includes extras like glue trivia, a Glue of the Month feature, and an FAQ, making it a surprisingly charming and genuinely useful niche resource.
https://raytracing.github.io/
A free, publicly available book series teaching ray tracing and path tracing from scratch, written by a veteran graphics instructor who distills course notes into a practical, code-along guide. Readers build a full path tracer step by step, producing impressive rendered images without relying on any graphics API.
http://mrspancake.com/
Mrs Pancake offers a continuously updated collection of free printable educational resources aimed at Key Stage 1 and Early Years teachers, parents, and children. Classroom aids like calendar frames, weather symbols, alphabet letters, clock hands, and craft projects make this a handy toolkit for early childhood education.