Activity
Education Development Center

Tune in to Learning: Multiple Percents

For Students 9th - 10th Standards
Have you ever seen an item that you wanted on sale for 15% of its original price? Have you tried to figure out what the sale price would be? Using this interactive lesson from T.V. 411, you can learn to calculate discounts with percentages.
Activity
Homeschool Math

Homeschool Math: Adding and Subtracting Decimals With Two Decimal Digits

For Students 4th - 5th
This is a complete lesson with instruction, word problems, and exercises about adding and subtracting decimals with two decimal digits (hundredths).
Unit Plan
Houghton Mifflin Harcourt

Houghton Mifflin Harcourt: Saxon Activity Center: Graphing Calculator Activity: Common Denominators [Pdf]

For Students 9th - 10th Standards
A graphing calculator lesson focusing on common denominator. Lesson contains detailed examples, visual demonstrations with key functions, and practice problems. Acrobat Reader required.