Rates of reaction connect 4

First sheet = game board; 2nd sheet is the counters. students work in pairs - print 2nd sheet onto 2 different sheets of colored paper to act as counters. Each player takes it in turn to turn over a card and places it onto the board justifying why it is allowed there. Then other player goes. Winner = first one to get 4 in a row!! Works well as review at end of topic