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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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Statistics with R: Teaching materials
Statistics with R is a project with statistics teaching materials for secondary education. The R programming language is used in a simple way for calculations, tables and graphs. From concrete examples, the student comes into contact with the …
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Microbial fuel cell
Microorganisms can supply electrons by decomposing organic materials and in this way generate a potential difference. For example, a biofuel cell can function as a battery.
The document contains instructions for use that describe how to make a …
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Measurements of length, area and volume: Conversion tables
Conversion tables for length dimensions, surface dimensions and volume dimensions. Useful for converting units and calculating length, circumference, area, volume, capacity.
The most common units were used. Little-used units such as square decameter …
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Educational videos: Overview document
This document contains several educational videos divided by subject:
- chemistry,
- biology,
- entrance exams,
and by theme. Almost all of the chemistry and biology curriculum for the third grade finality is covered in a Dutch video.
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The equilibrium constant Kc is not dimensionless
The equilibrium constant Kc is a fundamental quantity in solving chemical equilibrium problems.
Many secondary school chemistry textbooks use a dimensionless concentration fraction, which they usually represent with the symbol K. Both the …Translated by
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Powers and Logarithms: Course
This bundle contains a refresher on powers and logarithms.
The course contains theory and a limited number of exercises on the topics:
- power of a number;
- calculation rules for powers;
- nth root of power and a fraction as exponent;
- exponential …
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Bertus Aafjes, A journey on foot to Rome (1946): Listening and reading skills poem
On March 31, 1936, Bertus Aafjes (1914 - 1993), who was then 21 years old, left his native city of Amsterdam on a pilgrimage to Rome by bicycle. On the way he had to abandon his bicycle and continue on foot. He arrived in Rome on May 12, 1936. Ten …
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Properties of determinants: Overview
Overview of the properties of determinants of matrices:
- determinant of the transposed matrix;
- determinant when changing rows;
- determinant by product of a sequence with a real number;
- determinant when taking the sum of one row with a multiple …
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Statistics with the TI84: Manual - Delta Nova 6
Guide to using the TI84 graphing calculator for descriptive statistics:
- working with lists;
- calculate center and spread measures;
- plot histogram and density histogram;
- draw box plot.
Based on assignment 9 of Delta Nova 5/6 Statistics …
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Brainteasers for challenging math lessons
This syllabus Brainteasers for challenging mathematics lessons: part 3 was published for the Days of Mathematics for the first and second grade in Kortrijk on November 25, 2023. Most assignments include graphic material that you can make yourself.
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Scientific method: Schema
A diagram of a scientific method. The following steps are taken during the investigation:
- observation,
- research question & hypothesis,
- research or experiment,
- data or analysis,
- conclusion or result.
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