Tasks on motion without tension

The proposed manual performs a double task. Firstly, children get acquainted with the concepts of speed, time and the traveled path, practically unfolding the movement of heroes of tasks in time. The tasks are gradually becoming more complicated, and the child (again) gets acquainted with the joint movement of two objects, the addition and subtraction of their speeds, and even with the relativity of movement. Tasks for joint work are being worked out as a kind of movement tasks. The child practically unfolds in time many types of tasks for movement, conducting a deep propaedeutics of the future solution of their formulas.
Secondly, since the relationship between the values ​​in the formulas of the task of movement is expressed by multiplication (division), practical work with the tasks of movement is to prepare for the introduction of the operation of multiplication and division.
This manual makes sense to use either at the end of the first grade, or in the first half of the second class