MATH EXTENSIONS MENU Numeration, Addition, Subtraction
Investigate the way numbers were written by ancient groups of people like Romans, Babylonians, and others. Explore how we developed our modern way of writing numbers. (3.1a, 4.1a, 5.1a) Research big numbers, what they are used for, how they are written, and provide real world examples of the largest ones you find. (3.1a,b, 4.1a, 5.1a) Research the money of another country. Compare and contrast dollars and cents to that other country’s money. (3.1c)
Research decimals and very small numbers. Include what they are used for, how they are written, and provide real world examples of the smallest ones you find. (4.1b, 5.1b)
Student Choice
As gas prices increase, often so do food prices. Research why the increase occurs, and provide real world examples of food prices that have recently increased. (4.3b)
Create an activity or game that requires the players to use rounding and compatible numbers while adding, subtracting, multiplying, and/or dividing. (3.5a,b; 4.5a,b; 5.4)
Compare the population of Corpus Christi, Nueces County, Texas, and the United States today with what it was in the past. Create a visual display showing the change over time at each population level. (3.3b)
Investigate a career that often uses addition and subtraction. Justify why or why not adults need to know how to add and subtract whole numbers and decimals, when there are computers and calculators that can perform these operations. (3.3a, 4.3a, 5.5a)