What are the chances? In this 7th grade math lesson from Math Defined with Mrs C, we explore theoretical and experimental probability—two ways to describe how likely an event is to happen.



You
'll learn:
✅ How to...

Learn How to Find the Circumference of a Circle AND the Perimeter of a Semi-Circle!*



Wait… what’s the difference between circumference and *p
erimeter*?
What’s the best way to remember those c
ircle formulas?
And...

Learn how to calculate *discounts* and *markups* like a pro with Mrs. C! In this lesson, you’ll discover two easy ways to figure out sale prices and original prices:



• *Percent Equation Method* (
a = p × w)
• *Shortcut...

Welcome back to Math Defined*! I'm Mrs. C, and today we're diving into **finding probability for a compound event* — where multiple decisions come together to create a whole world of outcomes. ⚽🧦👕



In this lesson,...

Big Ideas Math - Grade 7 - Chapter 4.3. 🧮 **Struggling with two-step equations that have fractions? Don’t worry — Mrs. C is here to help! In this video, we break down how to solve two-step equations with fractions using a simple two-step...

In this video, How to Calculate Percent Change from Math Defined, Mrs. C walks you through step-by-step examples using real-life situations you can relate to — like video views, price drops, and even a jellybean guessing contest. 🍬

In this video, How To Solve Percent Problems Using the Percent Equation, Mrs. C shows you how to use the percent equation — percent × whole = part — to solve for missing parts, wholes, and percents. 🎯 We’ll walk through different types...

In today's Math Coach Corner, Mrs. C shows you exactly how to tackle percent word problems using the easy-to-follow percent equation: percent × whole = part. You'll learn how to diagram the word problems clearly, plug values into the...

In this video, Mrs. C breaks down how to use the *percent proportion* to find a *part**, **whole**, or **percent* — using the classic *“is over of equals percent over 100”* shortcut!

In this video, Mrs. C breaks down how to convert between fractions, decimals, and percents—a key skill for 7th grade math success! Students will learn: 0:08 - How to read a hundred grid and write it as a fraction, decimal, and percent...

In this video, we’ll: ✔️ Convert 17/100 to decimal and percent ✔️ Take on decimals like 0.63 and 1.25 ✔️ Turn percents like 9% into fractions and decimals ✔️ Work with equivalent fractions (like 4/5) to find matching percents

In this video, Mrs. C explains how to determine whether two variables, x and y, form a proportional relationship using tables and graphs. 🔹 *What You’ll Learn:* ✅ How to plot ordered pairs from a table ✅ How to check if a graph shows a...

In this video, we’ll break down how to solve and graph inequalities step by step! From basic examples to a real-world scenario about a cave explorer, you’ll learn how to confidently tackle these math problems and check your answers for...

In this video, we’re diving into *one-step inequalities* using multiplication and division! You’ll learn: ✅ How to solve one-step inequalities step by step. ✅ How to graph solutions on a number line. ✅ How to apply these skills to a...

Whether you're just starting out, or need a quick refresher, this is the video for you! Mrs. C will go show you step-by-step how to subtract these mixed numbers.

Whether you're just starting out, or need a quick refresher, this is the video for you! Mrs. C will go show you step-by-step how to factor an algebraic expression, using different methods and several examples.

In this video, we’re diving into **ratios and proportions* with four thought-provoking questions. 🔢 *Here’s what we’ll cover:* ✅ Finding the value of a ratio: Is 1/10 the correct value for 1/2:1/5? ✅ Checking for proportional...

In this video, Mrs. C breaks down what a proportion is and shows you three easy methods to solve for a missing value: ✅ Mental Math – Spot patterns to find the missing number quickly. ✅ Multiplication – Solve when the variable is in the...

In this video, I’ll show you *two easy methods* to determine whether two ratios (or even a whole table of values) are proportional: ✅ *Simplifying Ratios* – Reduce each ratio and compare! ✅ *Cross Products Property* – Multiply across and...

In this video, we’ll break down *rates and unit rates* step by step! You’ll learn how to compare different rates, convert them into unit rates, and even decide when to *divide or multiply* to find the best solution. 📌 *What You’ll...

In this video,we’re diving deep into **ratio tables**—an essential math skill that will help you solve real-world problems with ease! Whether you're comparing pencils to notebooks, sugar to flour, or even inches to feet, we’ve got you...

In thid video, we break down the concept of ratios and how they help us compare two quantities. You'll learn: ✅ *What a ratio is* and how to write it in three different ways (word form, colon, and fraction). ✅ *How to simplify ratios*...

n this video, Math Defined with Mrs. C explains the concept with a step-by-step example: -x + 10 is less than 4. Watch as she demonstrates two different methods to solve the inequality—one using addition and subtraction, and the other...

In this video, I’ll walk you step-by-step through solving and graphing an inequality with fractions. 🚨 Warning: There’s a common mistake many students make when graphing solutions, and I’ll show you how to avoid it! Plus, I’ll explain...