**1. Introduction to Negative Exponents**

**Description:** The web link contains video for teacher to understand on how to introduce the negative exponents.

**Core Concepts:** VIII-A1 Negative exponents.

**2. Scientific Notation and Powers of Ten**

**Description:** The webpage provides information on scientific notation and where exponents are applied.

**Core Concepts:** VIII-A1 Negative exponents.

**3. Math Antics - Scientific Notation**

**Description:** The video shows the steps to write numbers in scientific notation and makes students recall negative exponents.

**Core Concepts:** VIII-A2 Scientific notations.

**5. Introduction to Proportional Relationships**

**Description:** The given videos define proportion with examples by relating with fractions and ratios.

**Core Concepts:** VIII-A4 Proportion and percent.

**Links:**

**6. Part, Whole and Percent Proportion Word Problems**

**Description:** The video on percent proportion (relating percent and proportion) where students can apply cross multiplication to find the unknown values.

**Core Concepts:** VIII-A4 Proportion and percent.

**Link:** Video on part, whole, & percent proportion word problems

**7. WCLN - Percent Greater than 100 and Less than 1**

**Description:** The web link contains a video that introduces the concept of percent (%) greater than 100 and less than 1 along with examples.

**Core Concepts:** VIII-A4 Proportion and percent.

**8. Markup and Discounts**

**Description:** The video in this web link introduces and shows how to calculate markup and discount with example.

**Core Concepts:** VIII-A5 Consumer problems.

**9. What is Simple Interest?**

**Description:** The video in this web link can help the teachers to introduce the concept of simple interest.

**Core Concepts:** VIII-A5 Consumer problems.

**10. Commission**

**Description:** The video defines and explains about commission through example.

**Core Concepts:** VIII-A5 Consumer problems.

**Link:** Video on commission

**11. Integer Multiplication and Division**

**Description:** The given animated video shows how to derive multiplication and division rules for integer numbers.

**Core Concepts:** VIII-A6 Integers.

**12. Properties: Associative, Commutative and Distributive**

**Description:** The video in this web link explains the three properties of addition and multiplication namely Associative, commutative and distributive properties.

**Core Concepts:** VIII-A6 Integers.

**Link:** Video on properties of numbers: Commutative, associative and distributive

**13. Multiply and Dividing Integers with Models**

**Description:** The given web link contain videos that shows how to multiply and divide integers concretely (using counters) and pictorially (using number line).

**Core Concepts:** VIII-A6 Integers.

**Links:**

**14. Multiplying a Fraction Using an Area Model**

**Description:** The video in this web link shows how to multiply fractions pictorially using an area model.

**Core Concepts:** VIII-A7 Fractions and rational numbers.

**15. Modeling Division of Fraction (Number Line Model)**

**Description:** The video in this web link shows how to divide fractions pictorially using a number line.

**Core Concepts:** VIII-A7 Fractions and rational numbers.

**16. What are Rational Numbers?**

**Description:** The video in this web link shows shows the concept of rational numbers pictorially.

**Core Concepts:** VIII-A7 Fractions and rational numbers.