Provides teaching tips, information on common errors, differentiated instruction, enrichment, and problem solving for teachers to use with the CK-12 Middle School Math - Grade 6, Student Edition.

A work in progress, CK-12's Math 7 explores foundational math concepts that will prepare students for Algebra and more advanced subjects. Material includes decimals, fractions, exponents, integers, percents, inequalities, and some basic geometry.

This short video and interactive assessment activity is designed to teach fourth graders about mixed adding and subtracting of capacities (english units).

This short video and interactive assessment activity is designed to teach fifth graders about mixed adding and subtracting of capacities (english units).

This short video and interactive assessment activity is designed to give fourth graders an overview of capacity with compound units - word problems.

This short video and interactive assessment activity is designed to give fifth graders an overview of metric capacity operations.

This short video and interactive assessment activity is designed to teach fifth graders about multiplying and dividing decimals - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about mixed operations with compound units using multiplication and division - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about mixed problems in fractions.

This short video and interactive assessment activity is designed to teach third graders about mixed review (numbers up to 100,000).

This short video and interactive assessment activity is designed to teach fifth graders about different unit length comparisons.

A collaboration between the National Aeronautics and Space Administration (NASA) and the CK-12 Foundation, this book provides high school mathematics and physics teachers with an introduction to the main principles of modeling and simulation used in science and engineering. An appendix of lesson plans is included.

This short video and interactive assessment activity is designed to teach fourth graders about distance between items.

This short video and interactive assessment activity is designed to teach fifth graders about distance between items.

This short video and interactive assessment activity is designed to teach fifth graders about solving multi-step distance problems.

This short video and interactive assessment activity is designed to teach fourth graders about using scales and calculations to find weights (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about multi-step compound unit addition (metric units) - word problems.

This short video and interactive assessment activity is designed to teach fifth graders about multi-step compound unit subtraction - word problems.

This short video and interactive assessment activity is designed to teach fourth graders about multi-step division problems with compound units.

This short video and interactive assessment activity is designed to teach fourth graders about multi-step problems using the four operations - word problems.