How to Praise a Child's Drawing: What to Say Instead of "Good Job"
What to say about a child's drawing besides "good job": research on rewards and praise, and simple phrases about what you see and how it was made.
StudyX
StudyX Devlog
The development log of StudyX: app updates, how-to guides, and notes from building mobile software for intelligence.
How to Read a CEFR Comparison Table: IELTS, TOEFL, Cambridge and National Exams
CEFR tables put IELTS, TOEFL, Cambridge and national exams side by side, but each column means something different. How to read them, per official sources.
What Is Aozora Bunko? Copyright Rules and How Japanese Learners Can Use It
Aozora Bunko is a free library of Japanese books typed in by volunteers. How Japanese copyright shapes it, and how learners can find and read a book there.
What Is Project Gutenberg? Finding Free Books and Checking Copyright
Project Gutenberg is a free library of books out of copyright in the US. How to search it, which file to get, and why US public domain is not worldwide.
Piano Finger Numbers: How to Teach Them to a Child
The small numbers 1 to 5 by the notes are finger numbers: thumb is 1, little finger is 5, in both hands. What they mean and how to teach them to a child.
Go Rules for Beginners: How to Capture Stones and How the Winner Is Decided
The minimum rules of go in order: taking turns, capturing, illegal points, ko, how the game ends and how to count, with Japanese and Chinese scoring.
Stalemate Explained: How It Differs from Checkmate and What to Watch in the Endgame
What stalemate is, how it differs from checkmate, the queen and pawn endings that turn a win into a draw, and why the losing side aims for it.
Does Tsume Shogi Make You Stronger? Why It Works and How to Keep It Up
Where tsume shogi helps in real games (mating shapes, endgame reading, sacrifices, king safety), what it cannot teach, and how to keep it up daily.
Sudoku Rules: What First-Timers Need to Know
The one rule of sudoku: 1 to 9 once in every row, column and box. Common mix-ups, names for parts of the grid, where it came from, and a first puzzle.
Why Do You Flip the Fraction When Dividing?
Why dividing by a fraction means multiplying by its reciprocal, shown three ways: counting how many fit, making the divisor 1, and the amount for one.