This short video and interactive assessment activity is designed to teach second graders about comparing coins with pictures.

This stand-alone module intends to provide some motivation for studying organic chemistry. The topics touch briefly on some basic organic chemistry topics and focus on various organic compounds that readers would encounter in everyday life.

This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 100) - word problems.

This short video and interactive assessment activity is designed to give fourth graders an overview of comparison of capacity (gallons, pints, and quarts).

This short video and interactive assessment activity is designed to give fourth graders an overview of conversion among units of measure for capacity (english units).

This short video and interactive assessment activity is designed to give fifth graders an overview of conversion among units of measure for capacity (english units).

This short video and interactive assessment activity is designed to give fourth graders an overview of ellipses, trapezoids, rhombi, and polygons.

This short video and interactive assessment activity is designed to give fifth graders an overview of forming figures with cutouts.

This short video and interactive assessment activity is designed to give fourth graders an overview of - hundredths.

This short video and interactive assessment activity is designed to give fifth graders an overview of decimal multiplication.

This short video and interactive assessment activity is designed to teach first graders an overview of subtraction (numbers to 100).

This video lecture serves as a review of subtraction up to the number twenty for first graders.

This short video and interactive assessment activity is designed to teach second graders an overview of telling time to 1-minute intervals.

This short video and interactive assessment activity is designed to teach first graders an overview of telling time to quarter and hour.

This short video and interactive assessment activity is designed to give fourth graders an overview of - tenths.

This short video and interactive assessment activity is designed to teach second graders about fractions of a whole.

This short video and interactive assessment activity is designed to teach third graders about fraction of a whole.

This short video and interactive assessment activity is designed to teach fourth graders about patterns in division by 6, 7, 8, 9, 11, 12.

This short video and interactive assessment activity is designed to teach third graders about division patterns within the multiplication table.

The People's Physics Book v3 is intended to be used as one small part of a multifaceted strategy to teach physics conceptually and mathematically