Mathed Up!
Stratified Sampling
Young mathematicians learn how to solve problems involving stratified sampling. They review concepts of sampling and proportionality by watching a video and then they complete a worksheet of questions on this topic.
CK-12 Foundation
Stratified Random Sampling: An Extracurricular Study
Learning isn't a random process. A well-designed interactive lesson helps classes make key conclusions about stratified random sampling. They calculate group percentages and use those percentages to decide on sampling totals.
Statistics Education Web
Sampling in Archaeology
Compare different random sampling types using an archaeological setting. Scholars collect data from an archaeological plot using simple random samples, stratified random samples, systematic random samples, and cluster random samples....
Statistics Education Web
It’s Elemental! Sampling from the Periodic Table
How random is random? Demonstrate the different random sampling methods using a hands-on activity. Pupils use various sampling techniques to choose a random sample of elements from the periodic table. They use the different samples to...
Radford University
The Next Big Thing
Make sure the next product is a hit. An engaging task has scholars design an item to sell at a sports event and then conduct a marketing survey. They decide whether to use random sampling, stratified sampling, or cluster sampling, and...
Curated OER
Sampling Snoops
Students practice formulating a hypothesis and designing an experiment to test the hypothesis. They identify several sampling techniques they can use to test their hypotheses.
Curated OER
Data Collection
Students investigate qualitative and quantitative data. In this statistics lesson, students gather data on heights and weights of people and graph the distribution. Students discuss the differences between qualitative and quantitative data.
Curated OER
Liquid Rainbow
Students develop their own techniques for drawing a small sample of solutions into a straw. They hypothesize ways to increase the density of water, and discuss how salt-free rainwater tends to float on top of salty seawater.
Curated OER
Data Analysis Worksheet
In this probability worksheet, 11th graders solve problems using simple random sample, cluster sample, bias, population and systematic sample. They match the questions to its definition.
Curated OER
Statistical Specimens
Third graders are introduced to statistical vocabulary. They complete an online activity that asks them to calculate the mean, median and mode for a set of data.
Curated OER
The Politics of Rocks and Minerals
Combine politics with science as the class discovers the intricacies of studying rocks and minerals.
Curated OER
Stacking Water
Students experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.
Curated OER
Investigating Properties of Water: Temperature
Investigate how temperature affects the density of water and stratification that occurs in bodies of water when temperatures vary. Water of differing temperatures is given different colors to see the layers that form. The lesson is meant...
Curated OER
Teaching about the Effect of pH on Aquatic Organisms
Students perform experiments to determine the PH, acidity, and buffering qualities of a lake that make them sensitive to acid deposition.
Mangahigh
Mangahigh: Data: Stratified Sampling
This site provides students practice with the concept of stratified sampling. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to practice the skill.
University of Glasgow
Statistics Glossary: Stratified Sampling
An online statistics glossary which contains the definition for stratified sampling. Lists reasons for using stratified sampling instead of simple random sampling and gives an example situation in which stratified sampling may be used.
University of New Brunswick (Canada)
University of New Brunswick: Sample, Random, Systematic, Stratified Sampling
This site contains explanations and examples of the different kinds of data sampling.
CK-12 Foundation
Ck 12: Statistics: Sampling Methods
[Free Registration/Login may be required to access all resource tools.] Decide how to choose a sampling of a population to produce reliable statistical results.
CK-12 Foundation
Ck 12: Statistics: Sampling Methods Grade 8
[Free Registration/Login may be required to access all resource tools.] Understanding survey data and methods of sampling.
Wikimedia
Wikipedia: Cluster Sampling
An encyclopedia entry on cluster sampling details what it is, how it is different from stratified sampling, and provides a discussion on geographical cluster sampling.
Sophia Learning
Sophia: Unbiased Sampling Methods: Lesson 1
This lesson will define the term unbiased sample, and present the different types of unbiased sampling methods (e.g. simple random sample, stratified random sample, systematic random sample). It is 1 of 4 in the series titled "Unbiased...
Texas Instruments
Texas Instruments: Surveys and Survey Design
This set contains statistics questions regarding surveys and survey designs. The student differentiates between a systematic sample, a convenience sample, a simple random sample (SRS), and a stratified random sample.