Lesson Plan
Virginia Department of Education

Permutations and Combinations

For Teachers 10th - 12th Standards
Counting is not all it adds up to be — sometimes it involves multiplying. The activity introduces permutations and combinations as ways of counting, depending upon whether order is important. Pupils learn about factorials and the...
Lesson Plan
Virginia Department of Education

Integers: Multiplication and Division

For Teachers 7th
Rules are meant to be broken ... but not integer multiplication and division rules. Learners use chips to model integer multiplication and division. The results of the activity help them develop integer rules for these operations.
Lesson Plan
Virginia Department of Education

The Real Meal Deal

For Teachers 7th
Burgers and salads and sodas, oh my! Scholars use a menu to investigate the Fundamental Counting Principle. They create tree diagrams to illustrate the number of possible choices for each given scenario.
Worksheet
PBS

Working with Common Denominators: Activities and Supplemental Materials

For Students 4th - 6th Standards
Enjoy these straightforward and simple worksheet pages that practice with different denominators. The practice starts simple with adding fractions together and then works on a recipe that needs to be tripled. 
Unit Plan
National Security Agency

Going Green with Graphs

For Teachers 2nd - 3rd Standards
In this unit designed for second graders, youngsters are introduced to conducting surveys and creating tally charts based on the data they gather. Students then construct bar graphs, and observe the relationships between the two...
Lesson Plan
02 x 02 Worksheets

Proportions

For Teachers 7th
Cut-and-paste a great activity into your lesson plans. Scholars analyze real-world problems involving proportions. To change things up a bit they cut-and-paste quantities to create a proportion on their way to solving the problems.