New ReviewDemonstrate the steps of solving linear equations—this time with variables on both sides! A video presentation completes several examples with binomials on each side of the equation. Learners then complete the included practice...

New ReviewDo your pupils truly understand inverse operations, or is their understanding a little backward? Scholars learn the meaning of an equation in the second lesson of a four-part Algebra series. A series of activities begins with an analysis...

New ReviewHere's everything you need to know about algebraic expressions in 10 minutes or less! From an introduction to vocabulary to simplifying with the distributive property, the video lesson has a little bit of everything related to...

Solving equations is the groundwork for all of algebra. A video presentation explains the steps for solving an equation with variables on both sides. Using a different color for each step, the instructor shows how to manipulate the...

Turning words into symbols, a powerful application of mathematics. A video lesson explains how to rewrite a problem-solving question with expressions. The instructor emphasizes the need to define variables.

Math has a language all its own. A well-designed video explains the mathematical language related to equations and formulas. The instructor uses common language to describe the symbols and operations people expect to see when working...

The risk of contracting an infection in the hospital is low, but it does happen. Learn what risk factors have the highest correlation with hospital-acquired infections in the final lesson of a three-part series. Using the open source R...

Turn expressions into equations with a statement of equality. Individuals view the step-by-step process of writing two expressions and then setting them equal to find a value that makes them equal. The equation has variables on both...

Can you determine the exact volume of a bottle based on the relative volume of other bottles? A series of four videos shows someone pouring fluid into bottles. Scholars must set up a system of equations to determine how much each bottle...

Math is like another language with a vocabulary all its own. Translating verbal statements to mathematic symbols is a challenging task for learners. The video instruction provides several examples viewers watch—and rewatch—to improve...

Express yourself! Using a table method, the lesson presentation explains how to convert a verbal expression into an algebraic expression. The examples include problems with a variety of operations.

Variable expressions can take many shapes and forms. Learners review the different components of many different variable expressions in a straightforward video lesson. After introducing vocabulary, the instructor uses context to write...

Young scientists learn the importance of experimental design and the key elements of an experiment. Through observing videos and designing their own experiments, scholars apply each lesson they learn.

Which modification is the best? Using the scientific method, pairs determine the effects of each control surface on the distance of a glider's flight. The activity, section 16 in a 22-part unit on aviation, allows pupils to gain a better...

Keep everything under control. The lesson, the 16th segment in a 22-part unit, provides a more detailed look at the parts of a plane, specifically the control surfaces. Pupils learn about the construction of the wings and the tails and...

Build a solid understanding of equivalence before introducing equations. An interactive lesson helps learners explore the concept of equivalent expressions. They use an applet to write and make conclusions about expressions.

What factors affect the time it takes a ball to roll down a ramp? Learners build an experimental design by considering these variables. They collect data in two-way frequency tables and analyze them for patterns.

Recycle, reuse, and rearrange! Young scholars learn to rearrange formulas to highlight a variable of interest. They then use their new formulas to make calculations.

Determine if your classes understand the meaning of independent and dependent variables. An application question asks scholars to define a set of variables as well as determine appropriate units for each. They must also consider the best...

The process is literally the same for solving an equation. Pupils gain practice in manipulating formulas and equations to solve for a variable of interest. The lesson connects solving literal equations to solving an one-variable...

Cut up an expression into its parts. Pupils review the vocabulary associated with algebraic expressions. Given an expression, learners identify its part. They also interpret the parts of the expression and the expression as a whole in...

Letters can be numbers, but numbers can't be letters. Viewers learn how to use variables in algebraic expressions. It shows the use of variables in conjunction with different operations.

Solving for one out of four isn't too bad. The assessment provides a formula in four variables. Given the formula, pupils solve for the variable that is quadratic.

What variables can be use to construct a predictive model of storm damage? Pupils identify two independent variables to use to predict the amount of damage a storm causes. They provide information about how they would measure the...