Corbett Maths
Sensible Estimates
Making sensible estimates is a sensible thing to do. A short video shows viewers how to estimate the height of a dinosaur and the length of a school bus based on a given diagram. They use the average height of a person to make the...
Krista King Math
Estimate the Root with Linear Approximation
Root for those learning about roots. An installment of an extensive playlist covering derivatives focuses on using linear approximations to estimate roots. The example problem shows how to find the fourth root of 15 without a calculator.
Corbett Maths
Area under a Graph
What? The calculation of area is a linear distance? A short video shows how to use the areas of simple polygons to estimate the area under a graph. Pupils divide the area under a curve into figures to easier calculate the area. Given...
Corbett Maths
Medians and Quartiles from Grouped Frequency Tables and Histograms
Determine medians within a group. Given data represented as a frequency table of grouped data, the video demonstrates finding an estimation for the median. After finding the group where the median resides, the presenter uses a formula to...
Corbett Maths
Estimated Means from Grouped Data
Can scholars determine the mean if the frequency is for a range? By using a method similar to finding the mean from a frequency table, the video shows how to find an estimated mean for grouped data. It uses the midpoint of the interval...
PBS
Real-Life Math | Zoo Keeper, Birds
Birds of a feather flock together, so it's easy to estimate their number. Pupils watch an installment of a larger Real-Life Math series in which a zookeeper explains how she uses math to estimate the number of birds. They then try out...
MinuteEarth
Why We Sucked at Counting Fish (Until Now)
Are there more fish in the ocean or stars in the galaxy? The video begins with explaining the old method for estimating the number of fish in the ocean. Then it details the new method using SONAR. The differences in estimates lead...
MinutePhysics
Weigh a Million Dollars with Your Mind
Ever wonder if you could carry a million dollars? A video tutorial uses money to demonstrate estimation calculations. Using known values, the narrator builds an approximation for the weight of a million dollars.
PBS
How Many Humans Have the Same Number of Body Hairs?
Is there a person on Earth who has the same exact number of body hairs as you? The video describes a process using the Pigeonhole Principle to prove that this is definitely possible. The film goes on to consider other examples and...
Mathed Up!
Scatter Graphs
Make an estimate by getting in line. The class works with scatter plots and lines of best fit to make an estimate for given values. Pupils determine whether there is a positive or negative correlation and draw a best-fit line. Using the...
Educator.com
Finding The Area Under a Curve Using Rectangles
Here's an AP Calculus video that provides a discussion on determining an approximate for the area under a curve by calculating the sum of areas of rectangles that is smaller than the area and by finding the sum of areas of...
Krista King Math
How to Estimate HUGE Numbers Using Scientific Notation!
Large numbers don't have to be a drag to work with. The video shows viewers how to estimate a large product of numbers. This involves first converting the numbers to scientific notation and then applying multiplication.
Curated OER
How Do You Estimate a Quotient Using Compatible Numbers?
Learn how to do approximations to find a quotient. Given some large numbers to divide, how can this problem be tackled? It's often a good idea to do an approximation first as this can help to be in the ballpark in finding the solution....
Curated OER
How Do You Mentally Find Percents That are Powers of 10?
Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!
Curated OER
How Do You Use Compatible Numbers to Estimate a Part of a Whole?
What are compatible numbers? What are they used for? Is it like estimating? Is it like rounding numbers? The teacher will answer these questions and explain how to use compatible numbers.
Curated OER
Estimating Volume with Cubes
Using a graph, a bullion cube, and a harmonica case, this math guru shows how to estimate the volume with cubes. He explains how to multiply fractions together to estimate volume. This video may be too general for struggling learners.
Curated OER
Estimating Surface Area
Kids might enjoy this dramatic presentation on estimating surface area. The fake Transylvanian accent is a bit distracting but the problem solving practices are sound. Dr. Crazy Pants rounds his decimal measurements then multiplies...
Curated OER
How Do You Mentally Find Percents That are Powers of 10?
Powers of 10 are about moving the decimal around. The instructor illustrates how to move the decimal when it's ten percent or it's one percent. Once you understand this procedure you can do the mental math, in your head of course!
Khan Academy
MTEL Math Practice Test: 41-45
Finishing up this practice MTEL Math test, Sal guides the viewer through questions 41-45, explaining his thought processes. The problem set in this video features skills such as median and mean, percentages, and probability, all of which...
Khan Academy
MTEL Math Practice Test: 1-4
Are you worried about the MTEL? Never fear—Sal is here! Designed for adults seeking their teaching credentials in Massachusetts, this series of videos guides future teachers through a practice test for the Math MTEL. The valuable...
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Estimation With Decimals
This video shows how to estimate decimal addition in the context of a word problem. Practice problems are available. [3:01]
PBS
Pbs Kids: Math in the Bath
A learning module where students using their counting skills to fill a bath tub with water. Through the module, students will use their skills of estimation too.
Math TV
Math Tv: Whole Numbers
Helpful math video tutorials covering topics related to whole numbers including addition, division, estimation, expanded form, exponents, multiplication, order of operations, subtraction, rounding, and more. Choose a teacher and watch...
Khan Academy
Khan Academy: Estimating Lengths
Sal estimates the length of an object when given the length of another object. Includes a video, transcript, and question and answer section. [2:02]