# Mathematics - Class VIII Resources

The following list of online resources are provided as a sample of curated resources. New resources shall be added as we come across interesting and relevant online materials.

#### 1. Negative Exponents

Description: The web link is on history of Exponent, where the origin and need to exponents is explained.

Core Concepts: Exponent.

Core Concepts: Introducing negative exponents.

Description: The link shows application of exponents through Scientific notation.

Core Concepts: Exponents.

#### 2. Scientific Notation

Description: The web links Introduces Scientific notation.

Core Concepts: Scientific notation.

Description: The web links  shows steps to write numbers in scientific notation and how to compare numbers in scientific notation.

Core Concepts: Scientific notation.

#### 3. Perfect Squares

Description: This link contains a video that explains concept of square root.

Core Concepts: Square root.

Description: The web page shows History of perfect squares and also briefly shares application of squares and perfect squares.

Core Concepts: Perfect squares.

Description: This web link contains a video that explains how to calculate square root using long division method.

Core Concepts: Square root.

#### 4. Proportion and Percent

Description: The links contains web page that introduces and explain Ratio and Proportion.

Core Concepts: Proportion.

Description: This web link has Video that defines proportion with examples by relating fractions and ratios.

Core Concepts: Fraction and ratios.

Description: This link contain aVideo on percent and proportion.

Core Concepts: Percent and proportion.

Description: This link contains a Video on percent greater than 100.

Core Concepts: percentages.

#### 5. Consumer Math

Description: The video links introduces markup and discount and shows an example of calculating Cost Price, Regular Selling Price and Markup, Discount.

Core Concepts: Percent.

Description: The video links introduces simple interest and calculating Simple Interest.

Core Concepts: Simple interest.

Description: This link contains a video that explain commission.

Core Concepts: commission.

Link: Video explaining meaning of Commission

#### 6. Integers

Description: The link contains a web page Introducing Integers.

Core Concepts: Integers.

Description: This link contains a video showing multiplication and division of integers.

Core Concepts: Integers operation.

Description: This link contains a video showing properties of while operating with numbers.

Core Concepts: Integers Multiplication.

Description: The links shows multiplying and dividing integers using models.

Core Concepts: Integers multiplication and division.

#### 7. Fractions and Rational Numbers

Description: This link contains a web page showing history of the fraction.

Core Concepts: Fraction.

Description: The links shows how to multiply fraction and modeling division with fraction.

Core Concepts: Fraction operation.

Description: This link contains a video that explain concept of rational number.

Core Concepts: Rational Numbers.

Link: Video on Meaning and application of rational number

Description: The link explains how Decimal, fraction and percent can show the same value.

Core Concepts: Conversion of numbers.

Link: Web page on Decimals, fraction and Percentages

#### 8. Describing Relationships and Patterns

Description: The link has a video that help developing Pattern rule.

Core Concepts: Pattern.

Description: The link has a video that explains how to create algebraic expression, also called pattern rule.

Core Concepts: Expressions.

#### 9. Linear Polynomials

Description: The link has explanatory video on how to add and subtract polynomials.

Core Concepts: Polynomial operations.

#### 10. Solving Linear Equations

Description: The video links explains how to solve simple linear equations symbolically and explains how to write equation.

Core Concepts: Equations.

Description: The links explains the meaning of slope and investigating slope.

Core Concepts: Slope.

#### 11. Pythagorean Theorem

Description: The link has video that show visual proof of Pythagoras Theorem.

Core Concepts: Pythagoras Theorem.

Description: The video links  help visualize the Pythagoras Theorem, concretely and explains Pythagorean triple.

Core Concepts: Pythagoras Theorem.

Description: The links shows application and exploration of Pythagoras Theorem.

Core Concepts: Pythagoras Theorem.

#### 12. Area and Perimeter Relationships

Description: The links contains a Geogebra interactive showing how perimeter affects area and how area change affects Perimeter.

Core Concepts: 2D measurement.

#### 13. Volume and Surface area of a Rectangular Prism

Description: This link contains a Geogebra interactive showing how dimension change affects Volume of a rectangular prism.

Core Concepts: Volume.

Description: The links shows a video and a worksheet explaining the concept of surface area of a rectangular prism.

Core Concepts: Surface Area.

#### 14. Area of a Circle

Description: This link contains a video explaining concept of area of a circle.

Core Concepts: Area of Circle.

Description: This link contains a video showing how perimeter affects area Area and circumference of a circle.

Core Concepts: Circle.

#### 15. Transformation

Core Concepts: Transformation.

Description: This link contains an Geogebra interactive introducing Dilatation.

Core Concepts: Dilatation.

#### 16. Angles in a Polygons and Triangle Construction

Description: This web link Introduces polygons.

Core Concepts: Polygons.

Description: The video links shows explaining concept of interior and exterior angle and how to calculate interior and exterior angle.

Core Concepts: Angles.

Description: The links has interactive video to calculate Interior, and exterior angles and how to calculate exterior angle and sum of angles in triangles

Core Concepts: Angles.

Description: This link contains a video that show process to construct triangles.

Core Concepts: Triangle.

#### 17. Angles in Parallel and Intersecting Lines

Description: This weblink Introduces parallel lines and angles.

Core Concepts: Parallel lines.

Description: This link has video that  pictorially defines different angles formed in parallel lines..

Core Concepts: Angles.

Description: The links has interactive page (GeoGebra) to investigate angles and angles in parallel lines.

Core Concepts: Parallel lines.

Description: This link has video that shows different Angles (corresponding angles, interior angles and alternate angles) formed in parallel lines.

Core Concepts: Parallel lines.

#### 18. Representing Objects

Description: The links has a video on Orthographic drawing and an interactive page to visually explore Orthographic projection.

Core Concepts: Orthographic Drawing.

#### 19. Data Handling

Description: This link has web page on history of data handling.

Core Concepts: Data handling.

Description: The links has video explainer on how to carry out simple random sampling, a web page that explains random sampling and a video explaining types of Random Sampling.

Core Concepts: Random sampling.

Description: This link contain a video explaining meaning of circle graph.

Core Concepts: Circle graph.

Description: The links shows how to construct a pie chart using GeoGebra.

Core Concepts: Pie chart.

Description: The links shows how to draw a histogram using GeoGebra and how to create Histogram.

Core Concepts: Histogram.

Description: This link contain a Video that shows visually how to create a histogram from a circle graph.

Core Concepts: Histogram and pie chart.

#### 20. Probability

Description: This link contain a webpage explaining history of probability.

Core Concepts: Probability.

Description: This link contain a Video that explains the complement of an event with examples.

Core Concepts: Probability.