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Position of the piece on the chessboard

Source: licencja: CC 0.

Położenie bierki na szachownicy

Learning objectives

  • You will discover the method of describing the position of the point by using an ordered pair of coordinates.

Learning effect

  • You specify the coordinates of the piece on the chessboard and the coordinates of the point on the Battleship grid.

    • You mark the position of the piece of given coordinates on the chessboard.

    • You mark the position of the point with given coordinates on the Battleship grid.

    • You describe the position of the points in English.

Prepare the squared paper for the lesson. Draw the square with the side length of 8 units. The vertical lines of the net mark with the letters A‑H, the horizontal lines mark with the numbers 1‑8.

Prepare also the squared paper with two squares drawn next to each other. The sides of the squares are 10 units long. The vertical lines of the net mark with letters A‑J, the horizontal mark with the numbers 1‑10.

Today you are going to describe and mark the coordinates of the piece on the chessboardchessboardchessboard and the coordinates of the pointpointpoint on the BattleshipbattleshipBattleship grid.

ChesschessChess is a board game which has been known since the mid of the 16Indeks górny th century. It is played by two players who use the chessboard with 64 grids and a set of the pawns and chess figures.

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Source: GroMar, licencja: CC BY 3.0.
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nagranie abstraktu

Each of the squares of the chessboardchessboardchessboard is described by using and ordered pair whose first element is a letter and the second is a number. These elements are called the coordinates.

PositionpositionPosition D4 means the square which is situated at the intersection of the column marked with D and the line marked with 4.

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Source: GroMar, licencja: CC BY 3.0.
Task 1
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nagranie abstraktu

Describe the positionpositionposition of the pieces on the chessboardchessboardchessboard.

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Source: GroMar, licencja: CC BY 3.0.
Task 2
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nagranie abstraktu

Prepare a square of 8 units and colour the fields with given coordinates: C1, A5, F2, H8, D3.

Task 3
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nagranie abstraktu

Open the applet and place the piecepiecepiece in the indicated square.

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Geogebra aplet przedstawia szachownicę oraz bierki, które należy na niej umieścić poprzez przesunięcie ich na odpowiednie pole. Galeria z opisami alternatywnymi poniżej.
Location of chessmen on the chessboard
Source: GroMar, licencja: CC BY 3.0.
Task 4
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nagranie abstraktu

Invite a member of your family or your friend to play BattleshipbattleshipBattleship. Use the piecepiecepiece of paper with two squares with the sides of 10 grids drawn on it. On the left square draw the ships, whose positionpositionposition will be guessed by your opponent. The ships are placed vertically or horizontally. They cannot touch each other with their sides or the vertices. Every students is going to draw:

- one battleship /a four‑decker made of four squares,
- two cruisers /a three‑decker, each made of three squares,
- three destroyers /a two‑decker, each made of two squares,
- four submarines /a single‑decker, each made of one square.

On the right square tick the opponent’s “Hit“ ships and the shots he has make.

You announce a target square in the opponent's grid which is to be shot at by giving the pair of coordinates e.g. A1.

If the ship is on the chosen square the opponent says “Hit” and you can continue the shooting by giving the next coordinates. If, as the result of the shots, all squares of the ship are destroyed the opponents says “Hit and sunk”.

If the square with given coordinates is empty the opponent says “Miss” and you change turns. The winner is the person who destroys the opposing player's fleet.

Task 5

An extra task:

Find out the way of moving the knightknightknight. Place the knight on square E5. Give all possible positions of the piecepiecepiece in first move.

Remember:

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nagranie abstraktu
  • The positionpositionposition of the pointpointpoint in the plane can be describe by using an ordered pair of coordinates, for example the letter and the number.

Do the summarising exercises.

Exercises

Exercise 1
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Source: GroMar, licencja: CC BY 3.0.
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Wersja alternatywna ćwiczenia: Describe the position of the bishop on the chessboard. Możliwe odpowiedzi: 1. c 5, 2. d 4, 3. e 3, 4. f 4
zadanie
Source: GroMar, licencja: CC BY 3.0.
Exercise 2

On the squared paper draw a square with the sides of 5 units. Mark the vertical lines of the net with numbers 1‑4 and the horizontal ones with numbers 1‑4.

Colour the square units with the coordinates (3,2), (2,3), (4,3), (3,3), (3,4). The first number relates to the column, while the other to the line.

Exercise 3

Describe the position of the points on the chessboard using an ordered pair of elements: a letter and a number in English.

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Source: GroMar, licencja: CC BY 3.0.
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Exercise 4
Wersja alternatywna ćwiczenia: Indicate which pairs of expressions or words are translated correctly. Możliwe odpowiedzi: 1. szachy - chess, 2. bierka szachowa - piece, 3. okręty - battleship, 4. położenie - position, 5. współrzędna - chessboard, 6. punkt - bishop
zadanie
Source: GroMar, licencja: CC BY 3.0.
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Interaktywna gra, polegająca na łączeniu wyrazów w pary w ciągu jednej minuty. Czas zaczyna upływać wraz z rozpoczęciem gry. Jeden ruch to odkrywanie najpierw jednej potem drugiej karty z wyrazem. Każdy wyraz jest odczytywany. Kolejny ruch to odkrywanie trzeciej i czwartej karty. W ten sposób odsłuchasz wszystkie wyrazy. Nawigacja z poziomu klawiatury za pomocą strzałek, odsłuchiwanie wyrazów enterem lub spacją. Znajdź wszystkie pary wyrazów.
Source: Zespół autorski Politechniki Łódzkiej, licencja: CC BY 3.0.

Glossary

battleship
battleship

okręty

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wymowa w języku angielskim: battleship
bishop
bishop

goniec

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wymowa w języku angielskim: bishop
chess
chess

szachy

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wymowa w języku angielskim: chess
chessboard
chessboard

szachownica

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wymowa w języku angielskim: chessboard
coordinate
coordinate

współrzędna

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wymowa w języku angielskim: coordinate
knight
knight

skoczek

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wymowa w języku angielskim: knight
piece
piece

bierka szachowa

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wymowa w języku angielskim: piece
point
point

punkt

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wymowa w języku angielskim: point
position
position

położenie

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wymowa w języku angielskim: position
queen
queen

hetman

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wymowa w języku angielskim: queen

Keywords

battleshipbattleshipbattleship

chesschesschess

coordinatecoordinatecoordinate

piecepiecepiece

positionpositionposition