In this game, you should complete the puzzle boxes. Firstly, you can see 5 tetris pieces and each of them have 2 points. One point is red and the other one is green. Red points enable you to slide the tetris piece. Also, green points enable you to rotate these pieces. You can rotate some pieces and slide them in the puzzle boxes for filling the boxes. If you complete first puzzle, you can pass the second puzzle by shifting the slider. Have a fun!

[br][list=1][*]Create an slider which is name a, with minimum value[br]0.1, maximum value 2, and increment value 0.1.[br][/*][*] Add segment[br]with given length. [br][/*][*]Click the empty plane for selecting a point. Then,[br]this segment is linked with slider.[br][/*][*]Add angle with given size. Click the segment and[br]make the angle 90 degree with counterclockwise direction.[br][/*][*]Click line segment button and connect these two point.[/*][*]Again, add angle with given size. Click the[br]segment and make the angle 90 degree with counterclockwise direction.[br][/*][*]Click line segment botton and connect these two point.[br][/*][*]Again, add angle with given size. Click the[br]segment and make the angle 90 degree with counterclockwise direction.[br][/*][*]Click line segment botton and connect these two point[br]and one square is ready.[br][/*][*]Select the first point and cahnge size and color[br]option with value of 7, color of red. For second point, again change the size[br]with 7, color is green.[br][/*][*]Click the polygon button and create  a polygon with connection these 4 points.[br][/*][*]Click the reflect about line button and firstly[br]select this polygon and then select reflection line. [br][/*][*]Repeat this twelfth step with 3 times for[br]construction first tetris piece. [br][/*][*]Hide all points except first and second points. [br][/*][*]Do all steps from second to fourteenth steps[br]again for construction other 4 tetris pieces. [br][/*][*]Click the line segment button for creating[br]puzzle box and construct the shape of first puzzle. [br][/*][*]Click the slider button which is name puzzle,[br]with a minimum value 1, maximum value 2, and increment value 1. [br][/*][*]Select the whole line segments and right click[br]to select settings option, then choose advanced button. [br][/*][*]Write “puzzle≈1” in the condition to show object[br]part. [br][/*][*]Again, click the line segment button for[br]creating second puzzle box and construct the shape of second puzzle. [br][/*][*]Select the whole line segments and right click[br]to select settings option, then choose advanced button. [br][/*][*]Write “puzzle≈2” in the condition to show object[br]part. [br][/*][*]Click text button and write the explanation of[br]game. [br][/*][/list][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br][br]

[br][br]Some objectives with gaining the students to play Tetris Game;[br][br]Transformation Geometry:[br][list][*]7.C.4.1.[br]Determines whether they are matched by comparing planar shapes.[br][/*][*]7.C.4.4.[br]On the post, he discovers that each point on the shape is subject to a[br]transformation in the same direction and magnitude.[br][/*][*]8.C.2.1.[br]The point forms images of the line segment and other planar shapes under[br]rotation.[br][/*][*]8.C.2.2.[br]It turns out that each dot on the figure is subject to rounding around a point[br]in a certain angle in the clockwise or anticlockwise direction, and that figure[br]and image are the same.[br][/*][*]8.C.2.4.[br]Shapes form images that appear at most two consecutive displacements,[br]reflections, or rotations.[/*][/list]This game can be played by 8-17 years old children. I will recommend especially 7[sup]th[/sup][br]or 8[sup]th[/sup] grade students because they have more information about[br]transformation geometry. Also, they play this game more conscious. My main[br]purpose is that students should think more critically with using their imagination[br]and information related with transformation geometry. [*][br][/*]