Damath

Damath is a two-player educational board game combining the board game "Dama" (Filipino checkers) and math. It is used as a teaching tool for both elementary and high school mathematics. Every piece has a corresponding number and each even (white) square on board has a mathematical symbol. The game is commonly played in all elementary and secondary schools in the Philippines.

History
Damath was invented by Jesus Huenda, a teacher in the province of Sorsogon, Philippines, who had encountered problems in teaching math using traditional teaching methods. Inspired in part by an investigatory project called “Dama de Numero” submitted by a student (Emilio Hina Jr.) in 1975, Huenda overhauled the game and introduced it to his class, who enjoyed playing. Damath became popular and in 1980, the first Damath tournament was held in Sorsogon. The next year, Huenda received a gold medallion from the late President Ferdinand Marcos for his contributions in the field of teaching mathematics. The game reached its peak popularity in the 1990s, when it made the rounds of several mathematics education conventions all over the world such as the 10th Conference of the Mathematical Association of Western Australia (MAWA), the UNESCO-ICT4E conference in Thailand, the SEAMEO RECSAM/SEAMEC conference in Malaysia, and the APEC Learning Community Builders (ALCoB) conference in Korea. Damath was first introduced to the United States of America by an international Filipino educator, Reynaldo L. Duran at the National Council of Teachers of Mathematics (NCTM) Conference in New Mexico, USA in 2011.

Board and pieces
The board is similar to a checkerboard but with a twist. All even (white) tiles on the board have a mathematical symbol which dictates the operation that will be used when a player's piece captures the opponent's piece. It has numbers labeled 0-7 on its sides to determine the coordinates of the piece. Each piece of the player has corresponding values depending on what type of damath is being played. Both board and damath pieces are mostly made of thick cardboard or illustration board.

Gameplay
The rules are similar to checkers but there are some differences:


 * The goal is to have the most points at the end of the game.
 * Points are scored for each capture made during play and for each piece still on the board at the end of the game.
 * The games ends if a player has no pieces remaining (or cannot make a legal move), the moves are repetitive, or the twenty-minute time limit is reached.

Points are scored as follows
 * Each piece is assigned a value (printed on the piece)
 * When a capture is made, the score of the capture is calculated by using the mathematical operation shown on the space the capturing piece lands on, with the values of the capturing piece and the captured piece as the operands.
 * When a dama piece (king) captures or is captured, the score is doubled (or quadrupled when a dama piece captures a dama piece).
 * Each player also scores the value of their pieces remaining on the board at the end of the game, with dama pieces again scoring double.

Additionally, a one-minute time limit is placed on each move (including recording the score for the move).

Variations
Damath has different variations:
 * Counting Damath
 * Whole Damath
 * Fraction Damath
 * Integer Damat
 * Rational Damath
 * Radical Damath
 * Polynomial Damath
 * Binary Damath
 * Trigonometric Damath

Sci-Dama
A derivative of Damath which was the name comes from the word Science and Damath. The gameplay is similar to Damath and it uses the same board. However, the pieces and the scoring system are different. The winner is determined by having the lowest score in the game, unlike Damath.

There are variations of Sci-Dama:
 * Electro Sci-Dama
 * Dama Sci-Notation
 * THI Sci-Dama
 * Thermo Sci-Dama
 * Sci-Dama Water Patrol
 * Sci-Dama Power Patrol
 * Sci-Damathan