Introducing exponential equations means learners need to take all the rules and tricks they learned for exponents and actually apply them. This presentation comes to the rescue by touching on changing bases in exponential...

Just when a young mathematician starts to feel comfortable turning word problems into linear equations, shake things up and throw inequalities in the mix. This excellent, instructive presentation takes the steps for solving an...

Positioned inside the framework of linear and exponential functions, this lesson is more of an investigation into the effects of changing variables and constants inside an expression. The author takes familiar formulas, those for...

One thing that puzzles a lot of young algebrists is the factors in a word problem that are taken as "understood". This presentation on solving systems of linear inequalities does a great job walking the learner through how to tease those...

Student explore the value of money. In this addition and subtraction lesson, 2nd graders earn "money" for classroom jobs and spend it in the classroom. Students practice how to add prices and calculate change. This lesson incorporates...

Third graders practice making change with money. In this subtraction lesson, 3rd graders watch a video about money. Students investigate what it means to earn money, spend it, and find their change.

Fourth graders explore the concept of maintaining money. In this personal finance lesson, 4th graders earn "money" for cleaning their classroom desks. Students spend the "money" in the classroom and practice making change.