Howard Hughes Medical Institute
Biodiversity and Evolutionary Trees
Compare what shells look like on the outside with what makes that happen on the inside. Scholars begin by sorting an various seashells by their physical characteristics into phylogenetic trees. They then conduct a DNA comparison of...
Howard Hughes Medical Institute
Battling Vector-Borne Diseases: Factors That Affect the Mosquito Life Cycle
Slow the spread of disease by slowing disease carriers in their tracks. Learners explore just how they might accomplish this as they experiment with the life cycle of a mosquito under different conditions. Scholars design and conduct...
Serendip
The Molecular Biology of Mutations and Muscular Dystrophy
Different types of mutations cause unique types and degrees of muscular dystrophy. Scholars learn about the types of mutations and the impact on the body. They compare the location of the mutations and draw conclusions about how it is...
Howard Hughes Medical Institute
Evolution in Action: Data Analysis
An environmental factor, such as a drought, sometimes speeds up the rate of natural selection. Scholars analyze data on the beaks of birds around the time of the drought. They compare those that survived to those that perished and find...
Howard Hughes Medical Institute
Got Lactase? Blood Glucose Data Analysis
Many physicals include a blood glucose test, but what are doctors actually testing? Scholars graph and interpret blood glucose data, allowing them to observe the differences in lactase persistence and draw conclusions. They then connect...
Cold Spring Harbor Laboratory
The DNA Molecule Is Shaped like a Twisted Ladder
One of the first models of DNA appeared to be a triple helix. Young scientists learn about the many scientists who worked to find the shape of DNA. They observe multiple models, tests, and experiments to understand the conclusions. An...
Cold Spring Harbor Laboratory
Genes Come in Pairs
Mendel was the first to look at individual traits within a species. Step in his shoes as an interactive lesson takes users through his journey. An animation describes the design of his experiments and how he isolated individual traits to...
Howard Hughes Medical Institute
Weighing the Evidence for a Mass Extinction Part 2: On Land
What can fossils tell us about periods of extinction? Young scholars interpret fossil layers to make conclusions about changes in life during different geological time periods. They analyze the fossils for abundance and diversity as well...
College Board
2001 AP® Environmental Science Free-Response Questions
Water quality testing often reveals interesting facts about the local environment. Scholars respond to several AP® questions highlighting topics such as air pollution, water pollution, and the spread of disease. Each question requires a...
Howard Hughes Medical Institute
Milk—How Sweet Is It?
Have you ever wondered why some people are lactose intolerant? Participants test simulated patients in a hands-on lab activity to find out! They learn about lactose intolerance by performing an experiment, analyzing data, and drawing...
Howard Hughes Medical Institute
Pedigrees and the Inheritance of Lactose Intolerance
What, exactly, causes lactose intolerance? Scholars view a video describing a Finnish study that determined why some people are tolerant while others are intolerant. They then use the data from the study to reenact the experiment and...
College Board
Calculations Aren't Enough!
Unlike mathematics, statistics comes with a context. The author reminds teachers that data analysis involves using the context to make sense of the numbers. The article stresses good communication skills by highlighting the scoring...
Stanford University
Declaration of Independence
Scholars work in pairs to decide whether leaders wrote the Declaration of Independence for the rich and powerful or for every man. To draw their conclusion, pairs read excerpts from two historians and complete a graphic organizer...
National WWII Museum
The Red Ball Express: Statistics as Historical Evidence
Historians use all kinds of information to make conclusions ... including statistics. Young scholars examine how two historians evaluate The Red Ball Express—a supply line staffed primarily by African Americans—using numbers. The...
Purdue University
The Case of the Pilfered Pin: A Measurement Inquiry Activity
Who pilfered the pin? Scholars practice measurement skills as they solve the mystery of a stolen pin. They measure length, temperature, and mass and determine which of select suspects committed the crime. During the STEM hands-on...
Purdue University
Getting the Dirt on Decomposition
Sometimes science requires getting a little dirty. A hands-on lesson explores the idea of decomposition by building a compost structure. Using red worms and dirt, individuals build and collect data on the rate of decomposition. The STEM...
K20 Learn
Bavaria Has Issues...Experimental Components
Do you want to be a detective by analyzing situations? An engaging lesson provides young historians with the tools to help them understand the difference between data types and how to analyze them to draw conclusions. Scholars complete...
Purdue University
Animal Diversity and Tracking
What exactly are those glowing eyes in the night? Learners run an experiment to attract local wildlife and then document the number of visitors by identifying their tracks. They then analyze the data to draw conclusions about the types...
Purdue University
The Scientific Process of Conservation Biology: Analyze, Design, Debate
Scientists use data to learn about species survival—and your classes can too! A set of four lessons guides learners through a process to draw conclusions about the fluctuations in the population of the Hellbender species. They read...
Acoustical Society of America
Wave Basics
Catch the fast wave. Using a computer simulation, pupils experiment with amplitude, frequency, damping, and tension of a string to determine which affects the speed of the wave. Learners record the observations to determine their...
Alabama Wildlife Federation
Big Fish, Little Fish
Tag, you're eaten! A lesson on predator-prey relationships uses the game freeze tag as a model. Learners become either a predator or prey and play a game of tag as the prey tries to reach areas that house food and shelter. During the...
Radford University
What is My Standing Height Wise?
Given a scenario in which a class member wants to prove his height is not an outlier, pairs devise a plan and gather evidence to help support his claim. The small groups implement their plans and create graphical displays of their data...
Radford University
Tuition Cost Activity
Can I afford to go to college? Small groups design a method to research college tuition for several years and make a prediction of costs in 2025. Classmates plot the the data on a scatter plot and graph the line of best fit to make their...
Radford University
Is Fall Normal?
Fine the normality of fall measurements. Pairs collect measurements of fall leaves and one other fall object. Using the measurements, the groups determine the descriptive statistics for the object and using the Empirical Rule, figure out...