## Expand/Collapse I <3 Math

This video series introduces key Common Core concepts in 4th-8th grade mathematics. Each video focuses on building conceptual understanding of a topic, so that students understand the “how” and “why” behind mathematical problem solving.

Use these videos with your students as topical introductions to topics including integers, the concept of ratios, unit rates, percent, and division with fractions.

• ## I <3 Math: Integers

Exploring positive and negative integers and how we use them in the real world. This I <3 Math episode explains the difference between positive and negative numbers and how these numbers can be represented on a number line.

• ## I <3 Math: What is a Ratio?

An introduction to the concept of ratios that provides real world examples. This I <3 Math episode defines ratios, discusses combining ratios, and demonstrates the correct ways to write ratios.
• ## I <3 Math: Division of Fractions by Fractions

Combining the concepts of division and fractions to demonstrate division of fractions by fractions. This I <3 Math episode shows how to visualize dividing fractions when problem solving.

• ## I <3 Math: Division with Fractions and Whole Numbers

An examination of the concept of division with fractions and whole numbers. This I <3 Math episode illustrates how to divide fractions by whole numbers, and how to divide whole numbers by fractions.