Curated Video
Understanding Bias in Statistical Investigations
In this video, the teacher explains the concept of bias in statistical investigations. They discuss the different types of bias, such as selection bias and response bias, and provide examples to help students understand how bias can...
Curated Video
Determining Sampling Methods in Statistical Investigations
In this video, the teacher explains how to determine a researcher's sampling method. They discuss the difference between a population and a sample, and the importance of having a representative sample. They explain the concepts of simple...
Curated Video
Sampling Distributions and Approximation through Simulation
In this video, the teacher discusses the concept of sampling distributions and how to approximate them using simulations. The example used is about a high school surveying students' opinions on increasing graduation requirements for math...
NASA
NASA's Curious Universe: Asteroid Hunting
NASA's OSIRIS-REx spacecraft will attempt a daring feat: to briefly reach out its mechanical arm and grab a sample from an asteroid’s surface. Dante Lauretta, Heather Enos, and Ron Mink introduce you to NASA’s asteroid hunter and what...
Professor Dave Explains
Electron Microscopy (TEM and SEM)
We've talked a lot about light microscopy, but this technique has inherent limitations in resolution and magnification. The next paradigm in microscopy that emerged in the middle of the 20th century was electron microscopy. Because...
Professor Dave Explains
Phase Changes, Heats of Fusion and Vaporization, and Phase Diagrams
What the heck is dry ice and why is it so spooky? Learn this and more when we investigate phase changes and phase diagrams!
Journey to the Microcosmos
We Dipped Our Lens in Oil to See More Detail
Oil immersion is an interesting and complex microscopy tool.
National Institute of Standards and Technology
Preparation of Middle Distillate SRM Blends
This video demonstrates how to blend NIST middle distillate certified reference materials. It is intended to be used in conjunction with NIST Special Publication SP 260-167 available at http://ts.nist.gov/MeasurementService...
FuseSchool
Relative Atomic Mass
Learn the basics about Relative Atomic Mass. It is a tricky concept that's actually quite simple to understand and here, you will know how to calculate it. Find more in this video!
Journey to the Microcosmos
The Secret Things Living in Your Aquarium
The Secret Things Living in Your Aquarium
Science360
Biophotonics poised to make major breakthroughs in medicine
Imagine having the ability to manipulate light waves in order to see through a skull right into the brain, or being able to use lasers to diagnose a bacterial infection in a matter of minutes. At the Center for Biophotonic Sensors and...
Curated Video
Calculating Probabilities Using the Addition Rule
In this video, we demonstrate how to solve problems by working backwards and using algebraic equations. The examples given involve picking plants at a greenhouse and identifying the probability of certain coat markings in a sample of...
ShortCutsTv
Field Experiments in Psychology
Here we look at some psychological field experiments, such as Hofling's study of nurse obedience, Fischer's test of the cognitive interview and the Pilliavins' research on samaritanism, to show what they offer psychologists compared to...
Curated Video
Making Inferences about a Population Using Random Samples
In this lesson, students will learn how to use random sampling to make inferences about a population with an unknown characteristic. They will understand the importance of having a representative sample and the limitations of making...
Curated Video
Making Estimates About a Population Using Multiple Samples
In this video, the teacher explains how to make estimates about a population with an unknown characteristic by using the mean of multiple samples. The teacher demonstrates the process of setting up a proportion and calculating the mean,...
Curated Video
Analyzing the Likelihood of a Hypothesis through Sampling Distribution
In this video, the teacher explains how to determine the likelihood that a hypothesis is reasonable by approximating a sampling distribution and analyzing the results. The example used is whether a majority of students in a state are in...
Curated Video
Constructing and Interpreting Confidence Intervals
This video explains how to use a confidence interval in research, using examples of statistics gathered from various samples. It breaks down the concept of margin of error and how it relates to the confidence level and interval. The...
Curated Video
How to Conduct a Survey and Choose a Sampling Method
This video provides a lesson on how to conduct a sample survey to determine the popularity of two soda brands, A and B, on a college campus. It explains different sampling methods such as simple random sampling, systematic sampling,...
Curated Video
Conditional Probability and Tree Diagrams: Determining Thumb Preference Based on Handedness
In this video, we learn about conditional probability through the example of determining if someone is right or left thumbed based on their right-handedness. The teacher explains how to read a tree diagram and fills it in with...
Curated Video
Estimating T-Shirt Orders for Field Day: Proportional Reasoning
Learn how to use proportional reasoning to estimate the number of t-shirts of each size to order for a field day. Review the concept of random sampling and how it helps in making valid inferences about the entire population. Explore how...
Curated Video
Blood on towel used for DNA profile in Windsor murder investigation, jury hears
New ReviewA forensic biologist was a Crown witness in the ongoing trial of Brian Aaron Marbury of Detroit — who is accused of first-degree murder in the death of his estranged Windsor wife, Sahra Bulle, in the spring of 2023. CBC's Dalson Chen...
Curated Video
HIV research: Scientists confirm new viral strain
In November, researchers identified a previously-unidentified variant of HIV, the virus that leads to AIDS.
Curated Video
Ride-along: How police check for impairment
A new law has made it easier for police to test drivers for alcohol and drugs. CBC's Kayla Hounsell got a first-hand look at how police check for impairment.
Curated Video
Tougher impaired driving laws raise concerns about targeting
Police officers in Canada who lawfully pull over a driver no longer need reasonable grounds to demand a sample of their breath. The new rules, however, are raising concerns about possible police targeting and there's a growing...