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Corners in a quadrilateral
Sum of the four angles in a quadrilateral is 360 degrees. Calculate the size of an angle, based on three given angles.
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Sine function
Elements of the sine function: amplitude, equilibrium line and period. You receive a job description and get the requested information from it.
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Working out squares with remarkable products
Calculate the following squares using the rule of remarkable products.
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Proportions
An exercise on solving proportions: a/b = c/d means ad = bc.
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Distributivity in multiplication
Working out multiplications using distributivity: e.g. 31x11 = (30+1)x(10+1) = 300 + 30 + 10 + 1 = 341.
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Square roots of natural numbers
This exercise is about square roots of natural numbers, which have a natural number as a solution.
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Food challenge 2024: Mozzarella stretching
Will you make the longest mozzarella stretch together with your classmates? The winner gets a tour of the Mozzarella Experience Center and walks outside with 100 pizzas.
VIVES University of Applied Sciences challenges you during the Mozzarella …
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Monofunctional compounds: Skeleton notation
Students often wonder what the skeletal notation looks like when functional groups are added to the carbon chain. This is a summary that I made at the request of students.
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Setting up reaction equations: Guided practice
Do you have difficulties drawing up chemical reaction equations? These guided exercises will help you arrive at the correct reaction equation quickly and easily.
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Drawing up a reaction equation: Tips
Difficulties with formulating reaction equations? These tips will help you or your students to prepare reaction equations easily and correctly. A separate video has been developed for the exercises.
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Reaction patterns between inorganic substance classes: In-depth
Here you will get an overview of the different reactions that can take place between the inorganic substance classes. In this lesson we will cover the extended reactions, so it is recommended that you first review reaction patterns between inorganic …
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Reaction patterns between inorganic substance classes
Reaction patterns or coherence between the inorganic substance classes: an overview of the different reactions that can take place between the inorganic substance classes. In this lesson we will discuss the five basic reactions:
- metal + oxygen gas …
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