Our society is increasingly influenced and controlled by computer systems, apps and algorithms. Countless problems, now and in the future, are solved through those powerful computers. We also feel this digitization at school and in the classroom. …

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In 2021-2022 and 2022-2023, the third and fourth years of secondary education, respectively, were modernized. Within the transfer finality (more or less the former aso), five hours of mathematics became the standard, with some …

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A summary table of the sum, difference, product, and quotient of complex numbers. Both in cartesian and in trigonometric form and with the corresponding coordinates.

The second file also contains the graphic representation of the four operations.

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A summary table of a complex number, its opposite, conjugate and inverse in :

• cartesian form;
• trigonometric shape;
• as couple coordinates.

with figure.

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Test on the study material stochastics: counting problems without repetitions.

A number of questions are asked on the basis of examples (problems).

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In this study with GeoGebra, students look for the coordinate of the midpoint of a line segment and the center of gravity.

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Independent research in GeoGebra where students look for the coordinates of point vectors.

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Exercises on first-degree equations, solving problems with equations and transforming formulas.

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Students have seen the material about powers with a whole number as base.

Find the secret word. To be used as a snack.

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Jigsaw group work at module 17: Properties of triangles and quadrilaterals:

• half of the class work in pairs on the webquest on triangles ;
• the other half of the class, meanwhile, works in pairs on the webquest about quadrilaterals .

After two …

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These BookWidgets exercises ask questions about:

• domain,
• range,
• zero values,
• input and function values.

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An overview and proof of properties of some regular polygons.

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