F value p 4 - 6 5 - 6 4 - 5 Grade alternative frontal alternative frontal alternative frontal Teaching Method N = 67 N = 75 N = 82 N = 70 N = 78 N = 100 No. of students 450. S.I. 1.86 (16.96) −8.07 (21.51) 3.53 (16.48) −2.33 (16.82) 3.85 (17.48) −4.98 (21.04) Progress in solving exercises: Observed average 1.48 −7.43 3.04 −2.07 3.55 −4.69 Adjusted average 73.85 (14.22) 73.68 (13.51) 68.72 (14.27) 73.35 (12.69) 68.56 (16.02) 74.08 (12.93) Average: Beg. of year 75.71 (13.09) 65.61 (19.69) 72.23 (11.14) 71.02 (12.90) 72.41 (11.80) 69.10 (17.79) Average: End of year 740. S.I. 7.85 (5.17) 2.16 (2.73) 7.96 (3.61) 4.81 (2.89) 6.19 (5.48) 3.07 (3.55) Progress in solving word problems: Observed average 5.84 5.53 5.36 6.21 4.57 4.55 Adjusted average 57.00 (7.52) 42.81 (7.93) 47.45 (6.25) 39.01 (7.03) 40.81 (8.42) 37.82 (6.01) Average: Beg. of year 64.85 (5.73) 44.97 (7.74) 55.41 (6.44) 43.81 (7.30) 47.01 (8.81) 40.87 (7.61) Average: End of year 16.7* 10.22 (3.83) 2.69 (2.01) 8.91 (3.52) 4.93 (2.04) 6.08 (4.08) 4.05 (2.06) Progress on computer level: Observed average 8.95 4.82 7.27 5.81 5.05 4.98 Adjusted average 59.37 (0.90) 43.39 (1.93) 47.0 (0.85) 40.01 (0.91) 42.96 (1.42) 38.34 (0.52) Average: Beg. of year 69.31 (0.50) 46.01 (2.53) 57.32 (1.21) 44.71 (1.33) 47.92 (2.92) 34.42 (0.51) Average: End of year