7th Grade Math Videos & Lessons. Try it free.

An algebraic expression is a number sentence with an unknown number. How to simplify algebraic expressions by combining like terms. And we'll see how this knowledge can help us count savings, order pizza, and even study earthquakes!

We’ll learn how to to solve multi-step percent problems. We’ll also learn how to calculate percent increase and percent decrease. And we'll see how this knowledge can help us buy items on sale, learn about different schools, and see how much our things are worth!

How to solve algebraic equations in two steps. That we can solve equations using inverse operations. That this knowledge can help us start a business, play a concert, and buy fish!

That an algebraic inequality is a comparison that contains a variable. How to solve algebraic inequalities using inverse operations. How this knowledge can help us visit a theme park, pack for a trip, and determine how much we earn at a job!

We'll learn that you can use a scale factor to make lengths bigger or smaller. We will also learn how to use a scale factor to make scale drawings of geometric shapes. And we'll see how this knowledge can help us design a T-shirt, make a poster, and even build a car!

How to multiply with negative numbers. How to divide with negative numbers. We’ll see how this knowledge can help us track weather, learn about the stock market, and even start a business!

What PROPORTIONAL relationships are. How to identify proportional relationships in data tables, equations AND graphs. That this knowledge can help us bake, play sports, and even learn about animals.

We'll learn about the probability of an event happening. We will also learn how to PREDICT the chances of an event happening. And we'll see how this knowledge can help us compete in sports, be on a game show, and understand bottle tricks!

To find the probability of compound events. The difference between dependent and independent events. How this knowledge can help us pick outfits, win prizes and even play with puppies!

We will learn what a statistical question is. We’ll also learn how to answer them by collecting random samples and analyzing data. And we'll see how this knowledge can help us plan events, learn about animals, and even make water rockets!