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Convex and Concave Polygons: Explanation Video
A video lesson on the difference between convex and concave polygons.
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Connections between edits: Explainer video
A video lesson on the connections between the edits:
- addition and subtraction are opposite operations;
- multiplication and division are inverse operations;
- there is a connection between addition and multiplication.
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Adding Rational Shapes: Exercises
Unlimited practice on adding rational forms. The app generates exercises that can be solved independently. Afterwards they can compare their solution with the correct solution.
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Triangle Basics: Explainer Video
A video lesson on the basic concepts in a triangle:
- notation of the triangle;
- notation of the angles;
- opposite corners;
- opposite sides.
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Polygon Basics: Explainer Video
A video lesson on the basic concepts in polygons.
The following concepts are discussed:
- vertices;
- corners;
- sides;
- consecutive corners;
- vertices;
- enclosed corner;
- adjacent corner;
- diagonal.
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Percent spellings: Explanation video
A video lesson on the spelling of percentages. The following spellings are applied on the basis of examples:
- with percent sign;
- in fraction form;
- as a decimal number.
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Calculating with percentages: Explanation video
A video lesson about calculating with percentages. The following parts are covered by means of examples:
- taking a percent from a number;
- to increase a number by one percent;
- decrease a number by one percent.
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Apply distributive property: Explainer video
A video lesson on applying the distributive properties with natural numbers.
The subject matter is explained by means of an example.
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Distributive Feature: Explainer Video
A video lesson on the distributive property in the set of the natural numbers.
The continuation of this lesson can be found here: Applying a distributive property: Explanation video
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Commutative Property: Explanation Video
A video lesson on the commutative property (in the set of the natural numbers).
The property is examined by means of an example.
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Associative Feature: Explainer Video
A video lesson on the associative property (in the set of the natural numbers).
The property is examined on the basis of an example.
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Long division: Explanation video
Video lesson on long division, where the quotient is a decimal form. Theory is applied by means of an example.
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