Tests/Activity/Memorize

for the 1st part of a turn, 4x4 grid allows only valid squares to highlight and be chosen for the 2nd part of a turn, 5x5 grid allows only valid squares to highlight and be chosen for the 1st part of a turn, 5x5 grid allows only valid squares to highlight and be chosen for the 2nd part of a turn, 6x6 grid allows only valid squares to highlight and be chosen for the 1st part of a turn, 6x6 grid allows only valid squares to highlight and be chosen for the 2nd part of a turn, Sounds game only allows valid squares to highlight and be chosen, Testing that selected squares are always recognised and handled correctly as valid or invalid. Combination tested: Addition 4x4 valid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Addition 5 invalid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Addition 6 valid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Letters 4 invalid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Letters 5 valid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Letters 6 invalid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Sounds 4 valid, Testing that selected squares are always recognised and handled correctly as valid or invalid. Sounds 5 invalid, Testing that selected squares are always recognised and handled correctly as valid or invalid.