Children, age of 5, already know that we can compare objects by length, width, height, weight, size, shape, color, etc. All this is a verbal form of comparison, but the numerical comparison is no less important. Inequality is a numeric expression that has a greater than (>) or less than (<) sign.
When determining this indicator, we use tasks that contribute to the development of the ability to establish a correspondence between the number of elements of the set and a numerical number. This indicator allows you to track the formation of such important mathematical skills as: determining which of the sets contains more (or less) objects; comparison by the method of pairing the elements of two sets; orientation on the number line; composing questions with the words “how much more/less”; draw your own conclusions.
Test results make it easy to determine whether the student is able to compare sets of objects using pairing; define equal or unequal sets.
After analyzing the test results, we have determined that the student hasn’t developed this skill. There is no clear understanding of the composition of a number from 1 to 20. The student arranges numbers with errors in ascending and descending order, and inaccurately compares numbers. Most likely he/she does not use a numerical segment for comparison, addition and subtraction within 20. He/she selects and writes down possible solutions to inequalities with errors. He/she mistakenly uses the signs “greater than”, “less than”, “equal to” to compare numbers. He/she cannot accurately define and distinguish difference between equality, inequality.
To develop this skill, we recommend regular exercises with materials:

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