Pixel Art: how to play
by Coming soon to Actilud. Do you love “Pixel Art” type puzzles? In this article, we discuss an interesting calculation technique, then we present some tools from the site that improve the gaming experience.
Author: Actilud Webmaster
Create your own Pixel art
Coming soon to Actilud. Thanks to the Pixel Art editor, you can easily create your own Pixel Art and share it with your family, friends, colleagues, or students, as well as the entire community by publishing it on the website!
Presentation
Actilud is a website offering mathematical manipulation games, aimed at primary and secondary school students, teachers and trainers, and puzzle enthusiasts. Actilud is free to access and free of advertising or trackers: my modest contribution to an open and free educational Internet. The introductory video (in french for the moment) provides a tour of the […]
Configure your browser to make the most of Actilud applications
Cookies When I look at the connection logs for the Actilud site, I notice that some Internet users block all cookies. The intention is undoubtedly to protect privacy as far as possible, which of course is perfectly legitimate on the Internet. But this creates a problem: many sites can no longer function. In fact, banning […]
Basic Additive Problems: Classifying Statements
The Actilud site offers a range of configurable exercises for working on basic additive problems. The problems are classified according to Vergnaud’s typology – they are not sorted by the type of operation they involve – addition or subtraction – but by their nature. The same type of problem can therefore be solved by either […]
Modeling additive problems with the bar diagram
In this article, I’m going to suggest some ideas for working on the bar model from the Actilud.com website, which, once adapted to your classroom, will save you time and efficiency thanks to digital technology. This article does not aim to explain in detail the educational interest of bar diagrams; there is a whole literature […]
The “plus-minus” machine: an alternative model
It is important for students to understand that whatever the additive type of statement, it fits into a single model, that of the classic bar model: Whether we have addition or subtraction, it’s the same model that underlies the problem. However, like any model, the classic bar model has its limitations. In particular, it reduces […]
The Multiplicative Bar Diagram
This post deals only with the “classic” multiplicative bar diagram. Since July 2024, multiplication problems have been enriched by a new model, the Cartesian scheme, which is dealt with in another article. The multiplication bar diagram allows you to model multiplication and division problems. On Actilud, you’ll find a variety of exercises involving different types […]
The Cartesian Diagram – Another Model for Multiplication
The Cartesian scheme is an alternative to the basic multiplicative scheme. It is much simpler to understand than its analogue, but it is also more limited. Presentation The principle of the Cartesian diagram is based on the calculation of the area of the rectangle: A = L x L Area equals length multiplied by width […]
The L game, the strategy of translations, symmetries and rotations
Requiring little material: two pawns, two L-shaped tokens of different colors, a 4×4 checkerboard, and having very simple rules, the L game is educationally very interesting because it allows the development of the spatial representation of objects. It is a fun application of the concepts of translation, symmetry and rotation. The rules of the L […]
Hanoi Mystery, the puzzle of upside-down towers with a hint of the unknown
The Hanoi Mystery puzzle game is largely inspired by the famous Tower of Hanoi puzzle. The logic behind the puzzle is the same, but it’s more playful. Principle of the game The game is played by two players. Each game has two rounds. One player is the “coder” and sets up the puzzle; the other […]
Flip-flop pinball: modeling a movement
Flip-flop pinball, a hybrid of pinball and billiards, is a code-breaking game in which players model the path of the ball and can test their hypotheses. Game rules The game board is a 9×9 grid. A number of bumpers are placed in the squares, subject to a few proximity rules. They are hidden by a […]
Sudoku: Organizing Space
Sudoku allows you to practice spatial organization while respecting the constraint of having unique pieces in each row, column, and region. It’s an excellent exercise in observation, concentration, and logic. It also introduces the concepts of rows and columns, and therefore horizontality and verticality. It’s also a great way to memorize numbers. Game rules Sudoku […]
Admission to the Gorgias Academy: The Logic of True and False
Available in the Logic Puzzles section, the game Admission to the Gorgias Academy combines reading with logic. To solve the riddles, you need to read the statement carefully and, above all, analyze the propositions made and rank them according to the number of liars. The principle The player lives in Greece in 450 BC. He […]
The Turing Machine: Introductory Challenges
Brave New World It’s about making people happy. Quite uniformly. Here is the starting and ending situation: There’s no difficulty here: a single state is enough. Here’s a video showing a possible solution and how to program it. Our program transforms all sad or angry emoticons into smiling ones, sparing those that are already in […]
The Turing Machine: Improvement challenges
Move the apples! Yes, our machine can also transport fruit! Let C={apple, pear, grape, =, blank, X} be a collection. Place several apples, pears, and grapes in a row in the boxes, making sure to mix them together. There should be no white space between the fruits. End the row with the = sign. The […]