The "Olympics" in the United States is the world's largest mathematics thinking challenge for young people. Every year, more than 6.3 million students from 87 countries and regions participate in the competition. Different from the high difficulty and challenge emphasized by the traditional Mathematical Olympiad, the purpose of the Kangaroo Mathematical Thinking Challenge activity is to use interesting and vivid topics that are close to life to stimulate students' interest and confidence in learning mathematics, cultivate students' mathematical thinking, and train students to read, understand, and analyze and solve problems.
Published by McGraw-Hill, one of the two major educational publishing giants in the United States, Wonders textbook is a core textbook compiled according to the American Common Educational Program CCSS. Wonders has a "hamburger-style" curriculum system, with four-in-one listening, speaking, reading, and writing. The goals are differentiated, and each layer is broken. Children's writing uses English and Write Source series of textbooks, combined with California Common Core, to find writing materials from life, stimulate students' writing ideas and help students improve their English writing ability in all aspects in their writing practice.