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Geogebra: Math solver
GeoGebra developed this math solver that solves first and second degree equations step by step and simplifies arithmetic expressions. If you enter an equation, after clicking on the plus icon you can enter a second equation and solve the system …
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Geogebra: Practice math
GeoGebra developed an online practice option: GeoGebra Math practice.
Math Practice is a tool to master algebraic notation. It supports a step-by-step approach to problems, allows you to explore different approaches and supports confidence, fluency …
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Interactive exerciseOrganisation, company, NPO -
Geological Concepts: Part 1
Concepts covered in this section:
- oceanic crust;
- continental crust;
- Earth's crust;
- deposition of Calais;
- deposition of Dunkirk;
- anticline;
- concept fold
- basalt;
- barrier reef.
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Geology: Concepts part 21
This digital exercise will help you learn more about geology. While doing a towing exercise you will learn more about:
- soil,
- characteristics of the types of horizons,
- peat soil,
- podzol,
- brick ground,
- ground of honor,
- vague ground,
- loess soil.
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Geology: Concepts part 13a
This digital exercise will help you learn more about geology. While completing the sorting exercise you will learn more about:
- Quaternary,
- Pleistocene,
- glacials,
- fauna,
- humanoids,
- Holocene,
- ...
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Geology: Concepts part 7a
This digital exercise will help you learn more about geology. While completing this drag exercise you will learn more about the eras, periods and time periods.
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Geology: Concepts part 7
This digital exercise will help you learn more about geology. While completing this sorting exercise you will learn more about the eras, periods and time periods.
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Practice with modal auxiliary verbs (4)
Multiple choice questions in which you have to recognize the different modalities:
- ability,
- permission,
- request,
- advice.
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