Lesson Plan
The New York Times

Where to Draw the Line: Balancing Government Surveillance with the Fourth Amendment

For Students 9th - 12th Standards
The question of how to balance Fourth Amendment Rights with national security concerns becomes critical in an age of planned terrorist attacks, election interference, and fake news. Get young social scientists involved in the debate with...
Interactive
PHET

Graphing Slope-Intercept

For Students 8th Standards
Slope-intercept form ... perhaps it has something to do with slope and intercepts? An easy-to-use interactive lets users adjust the locations of two points on a line. The interactive automatically updates the slope-intercept form of the...
Interactive
PHET

Fractions: Equality

For Students 3rd - 4th Standards
What makes fractions equivalent? Learners first use an interactive that shows equivalent fractions with fraction models and number lines. They then play a game where they must match sets of equivalent fractions with different denominators.
Interactive
PHET

Fractions: Intro

For Students 1st - 3rd Standards
There's nothing improper in learning about fractions. Scholars apply an interactive to explore models for proper and improper fractions. They then answer a set of questions in a game that requires building models for given fractions and...
Interactive
PHET

Least-Squares Regression

For Students 8th - 12th Standards
Less is best when looking at residuals. Scholars use an interactive to informally fit a linear regression line to data on a scatter plot. The interactive provides a correct best fit line with residuals and correlation coefficient to...
Interactive
PHET

Unit Rates

For Students 6th Standards
Sometimes you just want to know the cost of one apple. A fun interactive lets learners explore the unit costs of fruits, vegetables, and candy. It shows how ratios to express ratios symbolically and on a double number line.
Interactive
PHET

Graphing Lines

For Students 8th - 12th Standards
Ready to increase pupils' understanding of slope with an upward slope? Scholars use an interactive that allows users to move two points on a coordinate plane. The interactive then automatically calculates the slope, the slope-intercept...

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