Technology & computer science
How a Message Crosses the Internet
Students read a short passage on how the internet works, rebuild a message from scrambled packets, and sequence the steps of loading a web page.
THE LESSON LIBRARY
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Social studies
How Memory Works: Reading the Forgetting Curve
Students read about memory stages, analyze a provided forgetting-curve data table, sketch the curve and plan a study schedule.
Science
Inside the Atom: Protons, Neutrons and the Periodic Table
Students use a short reading and provided data to fill in proton, neutron and electron counts for six elements and learn how the periodic table is organized.
Science
Lab Report Practice: How Does Drop Height Affect Bounce?
Students analyze provided ball-drop data: identify variables, write a hypothesis, calculate means, sketch a line graph and write a claim-evidence-reasoning conclusion.
Science
Layers of the Earth: Journey to the Center
Students use a data table to learn the four layers of Earth, convert real distances to a paper scale model, and judge how far humans have drilled.
World languages
Más, Menos, Tan... Como: Comparing People
Students use a data table about four teens to judge true/false comparisons and complete and write Spanish comparisons with más, menos, tan and como.
Mathematics
Mean, Median, Mode and Range: Reading Time Survey
Students build a frequency table from survey data and find the mean, median, mode and range of two data sets.
Mathematics
Mean, Median, Mode and Spread: Quiz Scores and Commute Times
Students compute mean, median, mode, range and standard deviation, then see how an outlier changes each measure.
Social studies
Migration and Urbanization: Push and Pull Factors in Brightwater
Students sort push and pull factors, analyze urbanization data for a made-up country, and apply the ideas to a short case.
Health & physical ed.
My Activity Log: Track, Analyze, Set a Goal
Students analyze a sample week of activity minutes, record or plan their own week, and write a realistic goal.
Science
Natural Selection: The Pebble Beetle Case Study
Students use made-up population counts of light and dark beetles on dark volcanic rock to explain the four parts of natural selection.
Mathematics
Normal Distribution Reasoning: Z-Scores and the 68–95–99.7 Rule
Students compute z-scores and use the empirical rule to find percentages and counts in normally distributed data.