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On March 1, 2016, NASA astronaut Scott Kelly came back to Earth after spending almost an entire year at the International Space Station, breaking the record for the longest spaceflight by an American. He and his Russian crewmate Mikhail...

In this Grade 7 math lesson, students will learn how to determine the distance between the center of a circle and a point drawn on the circle when the radius is given. We begin by reviewing the definition of a circle’s radius and...

In this Grade 7 math video, students will learn how to extend a number pattern using a given rule with repeated division to find the sixth term. This step-by-step video models how to apply the rule correctly and use long division to...

In this math video lesson, students learn how to determine the approximate location of irrational square roots on a number line through a clearly modeled exemplar problem. The lesson begins by labeling the number line with perfect...

In this math video lesson, students analyze a graph with six plotted points and determine which point could be removed so the relation becomes a function. The exemplar solution models how to apply the vertical line test, showing that...

In this Grade 7 math video lesson, students will learn how to solve two-step equations with parentheses by connecting real-world situations to algebraic models. We begin by interpreting contextual scenarios and representing the...

In this lesson, students will learn how to simplify and factor linear expressions that involve multiple operations. We begin with a clear procedural checklist: 1️⃣ Rewrite subtraction as addition if necessary 2️⃣ Distribute to remove...

In this math video lesson we will learn how to factor linear expressions using the greatest common factor (GCF) and rewrite expressions using parentheses, aligned to 7.EE.A.1. Viewers will be able to find the GCF of a linear expression...

In this math video lesson, we will be finding the x- and y-intercepts of a linear equation written in standard form. The lesson begins by clearly defining each intercept: the x-intercept is the point where the y-value is zero, and the...

In this math video lesson, students learn how to write the equation of a line parallel to a given line when the original equation is written in slope-intercept form and a point on the parallel line is provided. An exemplar solution is...

In this math video lesson, students learn how to write a system of linear inequalities from a given graph by analyzing key features of each boundary line and the shaded solution region. The modeled example begins by identifying the...

In this short math video, students learn how to factor a quadratic by grouping using a clear, five-step process. The lesson begins by reviewing the standard form of a quadratic, and then models each step carefully so students can follow...

In this short math video, students learn how to graph a system of linear inequalities step by step using clear visuals and explanations. We begin with a quick review of how to graph a line in slope-intercept form. For the first...

In this math video lesson, students learn how to write the equation of a line that passes through a given point and is perpendicular to a given line. The visually modeled solution begins with a review of perpendicular lines, emphasizing...

In this math video, viewers are guided step by step through solving a problem where the first four terms of a geometric sequence are given and the goal is to write an equation for the nth term. The exemplar solution begins by introducing...

In this math video, we will learn how to write the equation of a quadratic function given three points. We begin by recognizing that two of the given points are zeros, or x-intercepts, and use them to write the quadratic in intercept...

In this YouTube Shorts math video, we quickly show how to simplify a radical expression and write it in simplest form. We will review why simplifying requires rationalizing the denominator using the conjugate to create a difference of...

In this math video lesson, we will learn how to simplify numerical expressions with integer exponents. Students will clear negative exponents using the idea of reciprocal location, apply the product of powers property to multiply powers...

In this short math lesson, we’ll solve a quadratic equation step-by-step using completing the square. We follow 6 quick steps: 1️⃣ If necessary, “move” c to the right side of the equation. 2️⃣ If necessary, divide all terms by a. 3️⃣...

In this math video we will simplify a polynomial expression by using the difference of squares property.