Khan Academy
Finding the Greatest Common Factor of Two Monomials, Algebra I
Sal explains that the most significant common factor of any number is the largest number divisible into both monomials and not necessarily the number with the most significant value. He breaks down two numbers into their prime factors as...
Crash Course
Mathematical Thinking: Crash Course Statistics #2
What is the probability that someone will draw the same lottery numbers two times in a row? Very small, but it can—and has—happened! Statisticians often work with very large or small numbers. The second lesson in a statistics playlist...
Scholastic
Study Jams! Place Value
Looking at large numbers can intimidate many young mathematicians. Use Zoe's place value machine to help learners understand the meaning behind each digit in a whole number. After learning about the ones, tens, and hundreds places,...
Curated OER
Odd and Even Numbers
Odd and even numbers are briefly defined in this clear and concise video. Examples of odd and even numbers are given throughout the video. This is a great video to hook your students into your lesson.
Curated OER
Binary Code
A goofy upper grader explains to viewers what binary code is and how it works to tell the computer what to do. He does a good job of explaining how the code works and what each 1 and 0 represent. Because he mentions base 2 this could be...
Curated OER
Adding One-Digit Numbers
Your littlest learners will get a kick out of this math trick. The young lady in the video draws dots on each number and then counts them up. She correlates her method to images and explains all the numbers that can hold dots. This is a...
Curated OER
Addition Techniques
Charley and Professor Perez show us how to add numbers in a variety of ways. They use a number line to show how the various methods work. This clip shows learners that there are multiple ways to solve any addition problem. Intended for...
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 8)
Provide your class with a developmentally sound way to view four-digit subtraction. Sal uses visual solid aids to show what each step in the subtraction process represents. Everyone will be able to see the mathematical process in action.
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 8)
Sal provides a series of numbers for viewers to consider. They must attempt to identify the number pattern and predict the following two numbers in the sequence. The video contains various problems involving place value and pattern...
Curated OER
Singapore Math: Grade 3a, Unit 1 (part 9)
Have your class work through a series of exercises focused on number patterns with place value. Present each problem, allow your class to work through each one, and then show them what Sal did to solve each problem. Every problem is...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 3)
Learners explore this key concept through a review of reading and writing numbers up to 10,000. The instructor also leads a discussion of number progression. By using visual cues and brilliant colors, Sal makes it easy to understand how...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 5)
A video on Singapore Math uses a visual approach to understanding place value. It quizzes viewers on material learned about number sense. The instructor breaks down a large number, identifying the values in the thousands, hundreds, tens,...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 6)
A helpful video takes a deeper look at place value by identifying numbers of greater and lesser value using a visual approach. It would be a great way to solidify concepts for those who learn visually. Using bright colors and grouping...
Sesame Street
Horses Count To 20
Motivate your learners with this film. A series of horses appear one-by-one until reaching the number 20. This is a quick and easy way to review this concept.
Sesame Street
Number One And Only
Providing an introduction to the number one, this animated film features a young girl. It could be used as a quick anticipatory set in a preschool classroom before a lesson on counting.
Sesame Street
Salty & Pierre: Number 2
Salty and Pierre search for the number two in this animated film. The number two is found in a pond with two swans. This is quite a funny video. Students will love the inspector wearing a tutu.
Sesame Street
Salty & Pierre: Number 9
Salty and Pierre go on a search for number nine. This is a great way to kick off a lesson involving this number.
Sesame Street
Counting By Two's
A little girl invites us to count by two's. Each image flips to reveal objects appearing by two's. The little girl counts to ten by two's, four different times.
Sesame Street
Pinball: 12
Counting to the number twelve is fun with this video which tracks the path of a pinball. This animated film could be used as a way to reinforce counting skills or as a motivator prior to a math lesson.
Sesame Street
Martians Discover 16
Providing an introduction to 16, Martians interact with this number. This could be a fun way to introduce the number in a kindergarten or pre-school classroom.
Curated OER
How Do You Round Numbers?
Review the concept of rounding numbers in the millions. Using the example 2,561,190, the narrator rounds numbers to the nearest million, hundred thousand, ten thousand, thousand, hundred and ten. This is a terrific way to reinforce...
Curated OER
Multiplication Tables
An instructor shows that with multiplication it is easier to multiply than to solve a problem through repeated addition. This is a very concrete example that shows both the reason and the rational behind multiplication.
Curated OER
Expanded Form
Watch Allison write the number 213 in expanded form. She explains how each number is multiplied by a 1, 10, or 100 and how it relates to place value. This clip is short and fast, but could be useful for learners needing an expanded form...
Curated OER
Rational and Irrational Numbers
Irrational, rational, and terminating numbers are all covered in this math tutorial. The instructor uses a question from a math test to work through, showing how to compute and evaluate each answer to determine if the number given in...