Khan Academy
Patterns in Sequences 1
Faced with a series of numbers we need to find the next few values of the sequence. This short video shows an example of finding the next values in a sequence where we need to find the pattern of adding a specific number each time to...
Curated OER
Finding the 100th Term in a Sequence
The example problem is this video has a sequence of numbers that decrease by a fixed amount with each iteration, and one needs to find the 100th number in the sequence. Sal shows the listener how to find the pattern between the number...
Curated OER
Equations of Sequence Patterns
An example of writing an algebraic equation of the pattern of blocks that grows at each iteration is shown in this video. Sal shows how to find the pattern by looking at the iteration number and number of blocks. He then continues this...
Curated OER
Equations of Sequence Patterns
An example of writing an algebraic equation of the pattern of blocks that grows at each iteration is shown in this video. Sal shows how to find the pattern by looking at the iteration number and number of blocks. He then continues this...
Khan Academy
Patterns in Sequences 2
This video looks again at finding the algebraic pattern in sequences. In the example, we are looking at a figure where a number of toothpicks (or lines) are added each time, and you need to find how many toothpicks will be in the 50th...
Curated OER
Patterns in Sequences 2
This video looks again at finding the algebraic pattern in sequences. In the example, we are looking at a figure where a number of toothpicks (or lines) are added each time, and you need to find how many toothpicks will be in the 50th...
Khan Academy
SAT Prep: Test 1 Section 3 Part 5
Sal's lecture starts where his last one ended - on problem 13 from The Official SAT Study Guide. Starting the problem over to ease understanding, he explains how to find the pattern in a complicated sequence. The following problem...
PBS
What Is the Solar System?
How do scientists classify whether an object lies within our solar system or not? Examine the boundaries of the space neighborhood using a lesson from PBS's Space series for middle schoolers. After viewing a model of the solar system,...
TED-Ed
Can You Find the Next Number in This Sequence?
It is not your typical type of sequence. The resource presents a number sequence that is not generated using a mathematical formula. Saying a terms digits creates the next term in the sequence, allowing learners to see patterns these...
Curated OER
How Do You Find the Common Difference in a Sequence?
Briefly show your class or individual learners how to find the common difference in an arithmetic sequence. A quick and simple video, this resource should guide pupils toward understanding the concept of common difference. Appropriate...
Curated OER
How Do You Find the Common Difference in a Sequence?
Briefly show your class or individual learners how to find the common difference in an arithmetic sequence. A quick and simple video, this resource should guide pupils toward understanding the concept of common difference. Appropriate...
Calculus Expert
How to Find the Inverse of a Function
Watch a function stand on its head. Reflect a function to create its inverse and then find the inverse equation algebraically. An instructional video demonstrates how to connect the graphical and algebraic process.
Curated OER
Exponential Form to Find Complex Roots
Sal solves the problem x^3 = 1 for all of the real and complex roots using the exponential form of the complex number. He shows how the roots found in exponential form are the same as those in a more traditional form of a complex number...
Curated OER
How Do You Find the Next Terms in an Arithmetic Sequence?
Common difference? Sounds like an oxymoron. It's a math term used to describe a pattern that may occur between a series of numbers. Watch this video and the instructor will explain what the term means as it is applied to an arithmetic...
TED-Ed
The Pleasure of Poetic Pattern
Poetic rhythm, what it is and why it works, is the subject of this short video that uses animation to explain the appeal of rhythm, rhyme, and repetition.
Krista King Math
30-60-90 Triangles
Half of an equilateral triangle is a special right triangle. A video instructor shows how to find the pattern of the side lengths for a 30-60-90 triangle. She then applies the relationship to different examples.
Learning Games Lab
Finding Your Place on the Scale (Logarithms)
Linear scales are the standard that most graphs and data use. Converting data to a logarithmic scale can be tricky, but a video presentation thoroughly describes the process. Using visual imagery and specific examples, the lesson...
Curated OER
Where Does the Formula for a Term in an Arithmetic Sequence Come From?
There is a formula to find the nth term in an arithematic sequence. But first, the instructor in the video will go through several steps and lots of explanations about how to get that formula. Watch and listen carefully. And then maybe,...
National Education Association
Simplify Expressions by Factoring
Got that factoring thing down? Time to apply it! A helpful video explains the process of simplifying a rational expression, showing pupils how to factor a majority of expressions using special patterns. Here is a great way to begin the...
PBS
Eclipse Over America — Predicting Eclipses
It's easy to find out in today's world when the next eclipse will be, but what about thousands of years ago? Junior astronomers discover how the Babylonians used lunar observations to accurately predict future eclipses through an...
Curated OER
SAT Prep: Test 4 Section 8 Part 4
Working exclusively on problem 16 (the final problem of this practice session), Sal explains how to solve problems on consecutive integers and sequences. Students who are struggling with this skill would especially benefit from this...
Khan Academy
SAT Prep: Test 5 Section 3 Part 1
Sal starts a new set of practice SAT problems in this video, starting on page 652 of The Official SAT Study Guide. Problems involve fractions and ratios, simplifying equations, and finding the perimeter of given coordinates on a plane.
TED-Ed
Fractals and the Art of Roughness
Roughness is everywhere, contributing to the incredible complexity of the world around us. This complexity, however, is not without it's own unique sense of order. Join world-renown mathematician Benoit Mandelbrot as he looks at numerous...
TED-Ed
Dead Stuff: The Secret Ingredient in Our Food Chain
A disgusting and direct description of detritus and decomposition is digested in this drill! Your life science class learns about the importance of decomposers in the food chain and finds out how one organism's trash is another...
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