三版教材各难度因素的量化指标 | ||||||||||
难度因素 | 等级水平 | 课后习题量 | 百分比 | 加权平均 | ||||||
人教A版 | 北师大版 | 苏教版 | 人教A版 | 北师大版 | 苏教版 | 人教A版 | 北师大版 | 苏教版 | ||
认知 | 理解 | 12 | 21 | 48 | 21.05% | 28.77% | 42.86% | 2.16 | 1.88 | 1.79 |
运用 | 24 | 40 | 40 | 42.11% | 54.79% | 35.71% | ||||
分析 | 21 | 12 | 24 | 36.84% | 16.44% | 21.43% | ||||
背景 | 无背景 | 34 | 42 | 91 | 59.65% | 57.53% | 81.25% | 1.40 | 1.42 | 1.19 |
有背景 | 23 | 31 | 21 | 40.35% | 42.47% | 18.75% | ||||
运算 | 无运算 | 4 | 3 | 12 | 7.02% | 4.11% | 10.71% | 1.96 | 2.04 | 2.04 |
数值运算 | 51 | 64 | 83 | 89.47% | 87.67% | 74.11% | ||||
简单符号运算 | 2 | 6 | 17 | 3.51% | 8.22% | 15.18% | ||||
推理 | 无推理 | 14 | 24 | 49 | 24.56% | 32.88% | 43.75% | 2.16 | 1.88 | 1.68 |
简单推理 | 20 | 34 | 50 | 35.09% | 46.57% | 44.64% | ||||
复杂推理 | 23 | 15 | 13 | 40.35% | 20.55% | 11.61% | ||||
知识含量 | 1个知识点 | 2 | 12 | 47 | 3.51% | 16.44% | 41.96% | 2.65 | 2.19 | 1.71 |
2个知识点 | 16 | 35 | 50 | 28.07% | 47.95% | 44.64% | ||||
3个及以上 | 39 | 26 | 15 | 68.42% | 35.61% | 13.40% |