Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Language:Chinese.Paperback. Often we will see such a phenomenon: many students busy all day doing homework. what exercises. unit testing. school. military training. and available information. a lot of. several exercises. but academic performance is mentioned is not high. test scores are not ideal. why is this? The reason is no thorough grasp of the basic principles of teaching materials. did not grasp the scientific method of problem solving. Thoroughly understand the principle is the fundame. Seller Inventory # N22672