Probability, especially conditional probability, can be a slippery concept for young statisticians.  Statements that seem self-evident on the surface often require a daunting amount of calculations to explicate, or turn out to be...

Students identify the American language, how it has changed and effected culture, and become familiar with idioms. In this American language lesson, students study the eight parts of speech, identify literal and figurative speech, study...

Students can practice estimating differences in a series of self-check exercises and timed learning games.

Improve your estimation and rounding skills with these interactive games that are challenging and fun. Excellent skills practice for rounding, estimating sums and differences, and front-end estimation. Links to lesson plans, teacher...

This lesson explains how to estimate differences between whole numbers. Gives practice and games to practice this skill in a helpful and fun way.

This site explains how to estimate differences by rounding. Games and exercises are provided to practice the skill.

Students will play learning games to explore money in different ways, such as identifying, adding, and subtracting values.