Curated Video
West Virginia Gov. Earl Tomblin says water tests are encouraging after a chemical spill tainted the supply, but hundreds of thousands of people are still being told not to drink or bath in the water. (Jan. 12)
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West Virginia Gov. Earl Tomblin says water tests are encouraging after a chemical spill tainted the supply, but people are still being told not to drink or bath in the water.
Tomblin did not...
Curated Video
WRAP Thousands evacuated as volcano spews smoke
1. Wide volcano with plumes of smoke coming out
2. Various smoke
3. Man watching volcano
4. Crowd watching
5. Volcano
6. Wide volcano, roof tops of houses
7. Wide of volcano with plumes of smoke
8. Various of volcano
9. Wide of...
Curated Video
Floodwaters killing oysters, pushing out sea life
Floodwaters from the Midwest continue to head south, keeping the Mississippi River at flood levels with no clear indication of when the high river levels will begin to fall – and sea life depending on a certain amount of salinity in the...
Bloomberg
U.S. Honey Market Sweetened by Foreign Imports
Dec. 12 -- In today's ""Single Best Chart,"" Bloomberg's Scarlet Fu displays the spike in U.S. imports of honey as domestic production falls. She speaks on ""Bloomberg Surveillance.""
Flipped Math
Sampling Methods
Pupils watch a video to learn about different types of sample design and how to use technology to create a random sample. They discover different types of bias that may happen due to the sampling design or the questions. Learners use...
New Mexico State University
Soil Sampling: Getting Started
Taking a sample of soil requires more than just a shovel and bucket. Viewers learn about the important factors to consider when taking a soil sample in an informative video presentation. The narrator demonstrates the process in an actual...
TED-Ed
Can You Spot the Problem with These Headlines? (Level 1)
What's the story behind the headlines for scientifically researched products? Viewers of a short video identify the fallacies in headlines designed to lure the unwary.
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...
Crash Course
Sampling Methods and Bias with Surveys: Crash Course Statistics #10
How many of you found the video to be useful? Young statisticians learn about surveys in the 10th installment of the Crash Course Statistics playlist. An informative video describes different sampling methods and possible sources of bias.
Fuse School
Sampling Techniques
Sampling techniques scientists use, including coning and quartering, as well as aliquots, are the focus of a video that also looks at homogeneous and heterogeneous mixtures.
Northeast Arkansas Education Cooperative
Sampling Methods and Preventing Bias
Experimental design can be both incredibly intuitive and very high-concept when first introduced to learners. This video does a great job of discussing sampling methods and bias simply, without over-reducing...
Corbett Maths
Random Sampling
Hopefully, there's nothing random about the decision to use the resource. Scholars view an informative video on random sampling. They watch as the narrator works through several examples on the topic.
Corbett Maths
Stratified Sampling
Be stupefied by stratified sampling. Viewers of a short YouTube video learn about stratified sampling. Given information on the number of people majoring in a particular subject, they decide how many of each major they need to create a...
Curated OER
How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
Deciding what to wear can be difficult, but it helps if you know your options. Use a tree diagram to solve word problems like the one in this video! Class members can watch and learn how to find and count possible outcomes (or outfits)....
Sophia Learning
Sophia: Multi Stage Sampling: Lesson 1
This lesson will explain multi-stage sampling. It is 1 of 4 in the series titled "Multi-stage Sampling."
Sophia Learning
Sophia: Multi Stage Sampling: Lesson 1
This lesson will explain multi-stage sampling. It is 1 of 4 in the series.
NOAA
Noaa: Estuary Education: Sampling Seagrass
A look at various types of estuary grasses and the animals that are sheltered in this habitat, plus a look at the methods scientists use to study these grasses. [6:10]
Sophia Learning
Sophia: Unbiased Sampling Methods
Unbiased sampling methods are explored in this video lesson. The tutorial describes and provides examples of random sampling, systematic sampling, and stratified sampling.
Sophia Learning
Sophia: Evaluating External Validity: Lesson 2
Evaluating External Validity. This lesson is 2 of 6 in the series titled "Evaluating External Validity."
Sophia Learning
Sophia: Evaluating External Validity: Lesson 3
Evaluating External Validity. This lesson is 3 of 6 in the series titled "Evaluating External Validity."
Sophia Learning
Sophia: Evaluating External Validity: Lesson 5
Evaluating External Validity. This lesson is 5 of 6 in the series titled "Evaluating External Validity."
Sophia Learning
Sophia: External Validity: Lesson 3
This lesson introduces and defines external validity. It is 3 of 6 in the series titled "External Validity."
Sophia Learning
Sophia: External Validity: Lesson 5
This lesson introduces and defines external validity. It is 5 of 6 in the series titled "External Validity."