Mathematics difficulty of national volume B in 2022:

2022 national college entrance examination mathematics B is difficult. On the one hand, proposition combines with reality, sets real situations, highlights the application of mathematics, and gives full play to its educational function. For example, science mathematics 19 examines students' subject literacy in data processing and mathematical operation, which is based on the actual situation of social and economic production and life under the background of ecological environment construction, and fully embodies the function and guiding role of education.

Another situational test of the proposition, the fourth question of science mathematics, takes Chang 'e-2 satellite as the situation to continue deep space exploration after it has completed its exploration and become China's first artificial planet around the sun, and comprehensively uses basic knowledge such as sequence, function and inequality to examine students' ability to analyze and solve problems. It also embodies the application value and characteristics of the times of mathematics.

Second, based on the principle of "the problem is not biased, and the new question is not difficult", the test questions are innovated in the life system of the test questions, highlighting the examination of the trunk and key contents, guiding the teaching with standards, and reducing the quantity and improving the quality. For example, 12 and 2 1, the finale of science mathematics, are not optimistic. These two questions are actually an in-depth examination of the main knowledge, basic concepts and the idea of classification and discussion.

The historical evolution and provincial time of the national volume B;

1, the historical evolution of the national volume B.

20 13 the national volume of the new curriculum standard is divided into volume I and volume II. On 20 16, the national volume III was added, and volumes I, II and III were called volumes B, A and C respectively. In 2020, due to the national college entrance examination reform in some areas of the original curriculum standard, the new national college entrance examination volumes I and II were newly launched. 202 1 the original national volume 2 (volume a) of the new curriculum standard was cancelled and merged into one volume (volume b), which is collectively called the national volume b.

2, the national B volume using provincial time.

The provinces used before 20 15 are Henan, Hebei, Shanxi, Shaanxi (language and comprehensive), Hubei (comprehensive), Jiangxi (comprehensive) and Hunan (comprehensive); 20 15 The usage of Jiangxi (Chinese, Mathematics, English) and Shandong (English) increased.

20 16 Hunan (Chinese, Mathematics, English, Comprehensive), Hubei (Chinese, Mathematics, English), Guangdong, Fujian, Anhui and Shandong (Comprehensive) were added, and Shaanxi was cancelled. 20 17 Zhejiang (English) was added; 20 18 Shandong (Chinese, Mathematics) was added; The provinces to be abolished in 2020 are Shandong and Zhejiang (English listening).

The above data comes from Senior Three Network.