Curated OER
Magic Squares
In this magic squares activity, learners solve 3 different magic squares shown on the sheet. First, they identify the numbers already used in each square. Then, students determine which number goes in each blank to equal the same sum in...
Curated OER
Subtraction of Matrices
In this subtraction of matrices learning exercise, 11th graders solve 10 different problems that include subtracting matrices from others. They determine whether each pair of matrices can be subtracted based on their entry size. Then,...
Other
University of Massachusetts: Closing Entries
This site presents quiz questions and problems, complete with solutions, that illustrate the closing entries for a corporation.
US Department of State
Travel.state.gov: International Travel: Dominican Republic
This site has information for traveling in the Dominican Republic from the U.S. Department of State. Provides important information for safe travel and provides links to other sites of particular interest to U.S. tourists.
US Department of State
Dept. Of State: Consular Information Sheet: El Salvador
This site has information for traveling in El Salvador from the U.S. Department of State. Provides important information for safe travel and provides links to other sites of particular interest to U.S. tourists.
Purple Math
Purplemath: Adding and Subtracting Matrices
Demonstrates how to add and subtract matrices, explains why the addition or subtraction sometimes can't be done, and gives an example of how matrix addition is used in homework problems.
Other
Understanding Journal Entries
This site gives some general tips that facilitate recording journal entries and avoiding errors.