Disclosed is a learning textbook formed between a cover sheet and a textbook with written learning contents, wherein the important contents to be emphasized in the learning contents are expressed in a different color from the learning contents, and are expressed in the important contents. It is achieved by providing a multi-level learning teaching material further comprising a transparent color sheet formed of a color corresponding to the color.;The filter sheet further comprises a filter ring which is installed so as not to interfere with the teaching material at the upper side or the bottom of the coupling side of the cover and the teaching material, the color sheet is rotatably coupled to the filter ring by a convex hole formed in any corner. It is characterized by.;Therefore, learning contents can be learned in three-dimensional, sequential and causal form using one learning material, and important contents can be easily extracted from the complicated contents of learning, and memorization or understanding of important contents in the learning contents The degree can be measured.;As a result, it is effective to enhance the understanding and memory of the learning contents with one learning material, and to enable learners to acquire the learning contents themselves.;Multi-Level, Learning, Textbook, Color Sheet, Contrast, Complementary
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