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The textbook is designed for students to master the programme material on new topics independently - both offline in class and online at home. The system of tasks is designed to help students achieve results through their own research, observations, assumptions and conclusions.

Pupils will be able to take a test on each new topic using any gadget by QR code. The teacher will be able to upload the test tasks to any distance learning platform to organise the assessment of the whole class.

In the context of distance learning, this guide will help to effectively organise a child's work at home and will become an indispensable tool for teachers and parents. It meets the requirements of the Model Educational Programme in Mathematics for 2nd grade students.