Appendix C Percentage of four types of mistakes made by students (First semester) No. Name Total No. of mistakes Type 1 Type 2 Type 3 Type 4 Number % No. Mis. % No. Mis. % No. Mis. % 1 Hang 2 1 50% 0 0% 1 50% 0 0% 2 Kien 3 1 33% 1 33% 1 33% 0 0% 3 Chi 4 2 50% 1 25% 1 25% 0 0% 4 Ha B 4 2 50% 1 25% 1 25% 0 0% 5 Giang B 4 2 50% 1 25% 1 25% 0 0% 6 Ly 4 2 50% 1 25% 1 25% 0 0% 6 47% 22% 31% 0% 7 Dao 5 2 40% 1 20% 2 40% 0 0% 8 Huong 5 2 40% 1 20% 2 40% 0 0% 9 Nha 6 2 33% 2 33% 1 17% 1 17% 10 Hang 7 1 14% 1 14% 4 57% 1 14% 11 Hoa 8 1 13% 2 25% 4 50% 1 13% 12 Mai 9 3 33% 1 11% 4 44% 1 11% 6 29% 21% 41% 9% 13 Hanh A 10 3 30% 3 30% 3 30% 1 10% 14 Trang A 10 2 20% 2 20% 5 50% 1 10% 15 Hanh B 11 6 55% 3 27% 2 18% 0 0% 16 Anh A 12 4 33% 3 25% 5 42% 0 0% 17 Dung 12 4 33% 2 17% 6 50% 0 0% 18 Yen A 12 4 33% 3 25% 5 42% 0 0% 19 Thoa 13 3 23% 5 38% 4 31% 1 8% 20 Huy 14 4 29% 2 14% 7 50% 1 7% 21 Ha A 14 3 21% 2 14% 7 50% 2 14% 22 Ha B 14 4 29% 3 21% 6 43% 1 7% 10 31% 23% 41% 6% 23 Thu 15 3 20% 2 13% 8 53% 2 13% 24 Ha A 15 4 27% 3 20% 7 47% 1 7% 25 Hong 16 3 19% 3 19% 9 56% 1 6% 26 Ha 17 5 29% 5 29% 6 35% 1 6% 27 Giang 18 5 28% 3 17% 9 50% 1 6% 5 25% 20% 48% 8% 28 Hang 20 5 25% 3 15% 8 40% 4 20% 29 Kien 20 6 30% 5 25% 7 35% 2 10% 30 Tu 20 6 30% 4 20% 8 40% 2 10% 31 Du 20 4 20% 2 10% 13 65% 1 5% 32 Hien 21 3 14% 4 19% 10 48% 4 19% 33 Nhung 22 5 23% 2 9% 11 50% 4 18% 34 Hien 23 5 22% 3 13% 11 48% 4 17% 35 Ninh 23 6 26% 5 22% 9 39% 3 13% 8 24% 17% 46% 14% 36 Bao 26 6 23% 3 12% 13 50% 4 15% 89 37 Hanh 28 6 21% 5 18% 13 46% 4 14% 38 Ngoc 28 5 18% 3 11% 15 54% 5 18% 39 Anh D 28 6 21% 5 18% 13 46% 4 14% 40 Phuong C 28 6 21% 6 21% 13 46% 3 11% 41 Na 28 5 18% 5 18% 15 54% 3 11% 42 Hoa B 30 7 23% 4 13% 16 53% 3 10% 43 Linh B 30 6 20% 4 13% 17 57% 3 10% 44 Van 30 4 13% 5 17% 16 53% 5 17% 45 Phuong D 30 6 20% 4 13% 17 57% 3 10% 46 Thuy A 30 6 20% 3 10% 18 60% 3 10% 11 20% 15% 52% 13% 47 Yen 32 7 22% 6 19% 14 44% 5 16% 48 Phuong A 32 7 22% 5 16% 16 50% 4 13% 49 Thanh 32 8 25% 7 22% 12 38% 5 16% 50 Mai 33 7 21% 6 18% 17 52% 3 9% 51 Na A 34 5 15% 6 18% 19 56% 4 12% 52 Phuong C 34 6 18% 5 15% 17 50% 6 18% 53 Tuan 34 4 12% 6 18% 21 62% 3 9% 54 Hiep 34 8 24% 3 9% 17 50% 6 18% 55 Anh B 35 7 20% 4 11% 19 54% 5 14% 56 Linh A 35 5 14% 7 20% 20 57% 3 9% 57 Na B 35 8 23% 6 17% 17 49% 4 11% 58 Minh A 35 6 17% 4 11% 19 54% 6 17% 59 Thuy B 35 8 23% 5 14% 19 54% 3 9% 60 Huyen A 35 7 20% 6 17% 20 57% 2 6% 14 20% 16% 52% 12% 61 Chi 36 6 17% 7 19% 20 56% 3 8% 62 Hoa 36 5 14% 9 25% 19 53% 3 8% 63 Huyen B 36 9 25% 8 22% 15 42% 4 11% 64 Tam 36 5 14% 8 22% 19 53% 4 11% 65 Thao A 36 5 14% 7 19% 21 58% 3 8% 66 Thao B 36 7 19% 9 25% 16 44% 4 11% 67 Tram 37 7 19% 5 14% 20 54% 5 14% 68 Minh B 37 8 22% 4 11% 22 59% 3 8% 69 Phuong B 37 8 22% 5 14% 21 57% 3 8% 70 Nhung 37 6 16% 4 11% 23 62% 4 11% 71 Thinh 37 9 24% 11 30% 14 38% 3 8% 72 Trang B 37 4 11% 9 24% 19 51% 5 14% 73 Phuong A 38 8 21% 5 13% 19 50% 6 16% 74 Hanh 38 6 16% 4 11% 23 61% 5 13% 75 Ngoc 38 5 13% 5 13% 23 61% 5 13% 76 Anh C 39 6 15% 4 10% 23 59% 6 15% 77 Hung 39 8 21% 5 13% 23 59% 3 8% 78 Lien 39 8 21% 11 28% 16 41% 4 10% 79 Son 39 6 15% 9 23% 18 46% 6 15% 80 Hoa A 40 5 13% 6 15% 23 58% 6 15% 81 Phuong B 40 7 18% 7 18% 23 58% 3 8% 82 Trang A 40 5 13% 9 23% 21 53% 5 13% 83 Giang A 40 9 23% 7 18% 20 50% 4 10% 84 Huong 40 6 15% 5 13% 25 63% 4 10% 85 Hung A 40 6 15% 9 23% 21 53% 4 10% 90 86 Son 40 8 20% 8 20% 17 43% 7 18% 87 Thao C 40 5 13% 7 18% 24 60% 4 10% 88 Trang C 40 7 18% 10 25% 18 45% 5 13% 89 Trang D 40 8 20% 11 28% 18 45% 3 8% 90 Tuyen 40 6 15% 10 25% 18 45% 6 15% 91 Le 40 6 15% 10 25% 21 53% 3 8% No Students 31 17% 19% 52% 11% 91 Appendix D Percentage of four types of mistakes made by students (Second semester) Name Total No. Type 1 Type 2 Type 3 Type 4 No. of mistakes No. Mis. % No. Mis. % No. Mis. % No. Mis. % 1 Hang 3 0 0% 1 33% 1 33% 1 33% 1 2 Hanh B 4 0 0% 2 50% 2 50% 0 0% 3 Huong 6 0 0% 2 33% 4 67% 0 0% 4 Kien 7 1 14% 1 14% 4 57% 1 14% 5 Ly 7 1 14% 2 29% 3 43% 1 14% 6 Thoa 7 1 14% 2 29% 3 43% 1 14% 7 Yen A 7 0 0% 2 29% 4 57% 1 14% 8 Anh A 7 1 14% 1 14% 5 71% 0 0% 9 Ha A 8 1 13% 2 25% 4 50% 1 13% 10 Huy 9 1 11% 3 33% 4 44% 1 11% 9 9% 28% 54% 9% 11 Dao 10 1 10% 2 20% 7 70% 0 0% 12 Giang A 10 1 10% 2 20% 5 50% 2 20% 13 Hien 10 1 10% 2 20% 6 60% 1 10% 14 Van 10 1 10% 3 30% 4 40% 2 20% 15 Hoa 10 0 0% 4 40% 6 60% 0 0% 16 Giang 11 1 9% 5 45% 4 36% 1 9% 17 Hanh A 11 0 0% 3 27% 7 64% 1 9% 18 Hang 12 1 8% 2 17% 7 58% 2 17% 19 Trang A 13 0 0% 4 31% 8 62% 1 8% 20 Bao 14 1 7% 3 21% 7 50% 3 21% 21 Chi 14 2 14% 4 29% 6 43% 2 14% 22 Ha B 14 0 0% 5 36% 6 43% 3 21% 23 Ha 14 1 7% 1 7% 10 71% 2 14% 24 Mai 14 0 0% 2 14% 9 64% 3 21% 14 6% 26% 55% 13% 25 Anh C 15 0 0% 5 33% 8 53% 2 13% 26 Hang 16 1 6% 3 19% 9 56% 3 19% 27 Phuong A 16 2 13% 5 31% 7 44% 2 13% 28 Hien 16 1 6% 4 25% 8 50% 3 19% 29 Thanh 16 0 0% 3 19% 10 63% 3 19% 30 Linh A 17 1 6% 3 18% 10 59% 3 18% 31 Nhung 17 2 12% 4 24% 8 47% 3 18% 32 Du 17 1 6% 1 6% 11 65% 4 24% 33 Thinh 17 1 6% 2 12% 10 59% 4 24% 34 Ngoc 18 0 0% 4 22% 11 61% 3 17% 35 Phuong A 18 2 11% 3 17% 10 56% 3 17% 36 Tu 18 0 0% 3 17% 12 67% 3 17% 37 Ha B 18 2 11% 2 11% 11 61% 3 17% 38 Nha 18 0 0% 3 17% 11 61% 4 22% 39 Ninh 18 0 0% 6 33% 8 44% 4 22% 92 40 Hiep 18 1 6% 2 11% 13 72% 2 11% 41 Ly 19 2 11% 6 32% 7 37% 4 21% 42 Ha A 19 1 5% 3 16% 12 63% 3 16% 43 Hung A 19 0 0% 0 0% 17 89% 2 11% 19 5% 19% 58% 18% 44 Hoa A 20 1 5% 4 20% 11 55% 4 20% 45 Linh B 21 1 5% 7 33% 9 43% 4 19% 46 Huong A 22 2 9% 7 32% 8 36% 5 23% 47 Chi 22 1 5% 2 9% 12 55% 7 32% 48 Giang B 22 3 14% 4 18% 13 59% 2 9% 49 Phuong B 22 1 5% 3 14% 14 64% 4 18% 50 Hoa B 23 0 0% 5 22% 13 57% 5 22% 51 Mai 24 2 8% 6 25% 13 54% 3 13% 52 Thu 24 2 8% 3 13% 15 63% 4 17% 53 Yen 24 1 4% 7 29% 9 38% 7 29% 54 Minh B 24 1 4% 3 13% 14 58% 6 25% 55 Tam 24 2 8% 6 25% 14 58% 2 8% 56 Kien 25 1 4% 4 16% 14 56% 6 24% 57 Anh D 25 1 4% 5 20% 13 52% 6 24% 58 Minh A 25 2 8% 2 8% 16 64% 5 20% 59 Phuong C 25 3 12% 2 8% 16 64% 4 16% 60 Hung B 25 0 0% 2 8% 20 80% 3 12% 61 Na 25 0 0% 7 28% 14 56% 4 16% 62 Trang B 25 0 0% 5 20% 16 64% 4 16% 19 5% 19% 57% 19% 63 Trang A 28 1 4% 7 25% 13 46% 7 25% 64 Dung 28 1 4% 3 11% 18 64% 6 21% 65 Hoa 28 3 11% 4 14% 15 54% 6 21% 66 Ngoc 28 3 11% 3 11% 15 54% 7 25% 67 Thuy B 28 3 11% 2 7% 18 64% 5 18% 68 Na A 29 2 7% 6 21% 16 55% 5 17% 69 Phuong B 29 2 7% 6 21% 15 52% 6 21% 70 Anh B 30 2 7% 5 17% 19 63% 4 13% 71 Hanh 30 2 7% 7 23% 19 63% 2 7% 72 Phuong C 30 1 3% 8 27% 17 57% 4 13% 73 Tuan 30 3 10% 7 23% 17 57% 3 10% 74 Diep 30 2 7% 2 7% 19 63% 7 23% 75 Phuong D 30 4 13% 3 10% 17 57% 6 20% 76 Son 28 1 4% 3 11% 19 68% 5 18% 14 7% 16% 58% 18% 77 Na B 31 1 3% 10 32% 14 45% 6 19% 78 Thao B 31 1 3% 5 16% 17 55% 8 26% 79 Tram 32 2 6% 7 22% 19 59% 4 13% 80 Huyen B 32 2 6% 7 22% 18 56% 5 16% 81 Thao A 32 2 6% 9 28% 15 47% 6 19% 82 Huong 33 3 9% 7 21% 19 58% 4 12% 83 Lien 33 4 12% 3 9% 24 73% 2 6% 84 Huong B 34 2 6% 9 26% 20 59% 3 9% 85 Hanh 34 2 6% 3 9% 19 56% 10 29% 86 Hong 34 4 12% 6 18% 15 44% 9 26% 87 Le 34 3 9% 3 9% 20 59% 8 24% 93 88 Trang B 35 1 3% 8 23% 21 60% 5 14% 89 Quan 35 4 11% 5 14% 19 54% 7 20% 90 Thuy A 35 2 6% 3 9% 22 63% 8 23% 91 Huyen A 35 3 9% 6 17% 21 60% 5 14% 15 7% 18% 57% 18% 92 Oanh 36 3 8% 7 19% 21 58% 5 14% 93 Nhung 38 2 5% 5 13% 22 58% 9 24% 94 Trang C 38 3 8% 6 16% 21 55% 8 21% 95 Son 38 2 5% 5 13% 26 68% 5 13% 96 Tuyen 39 3 8% 4 10% 26 67% 6 15% 97 Hung 39 3 8% 7 18% 25 64% 4 10% No Students 6 7% 15% 62% 16% 94 . Appendix C Percentage of four types of mistakes made by students (First semester) No. Name Total No. of mistakes Type 1 Type 2 Type 3 Type. 15% 91 Le 40 6 15% 10 25% 21 53% 3 8% No Students 31 17% 19% 52% 11% 91 Appendix D Percentage of four types of mistakes made by students (Second semester) Name Total