1. MCA-III Math Vocabulary from DRAFT Test Specifications By J. Scheumann and C. Sorenson 2011 Source: MCA III DRAFT Test Specifications for Mathematics, Oct. 15, 201, http://children.state.mn.us (Assessment and Testing/MCAs/Test Specs)
3. inequality Click here for a 2 min video clip. A number sequence stating that two quantities are not equal, or might not be equal. By J. Scheumann and C. Sorenson 2011
4. exponent 3 4 = 4 * 4 * 4 The raised number in a power that tells the number of times the base is used as a factor. By J. Scheumann and C. Sorenson 2011
5. coordinategrid (3,2) A device for locating points in a plane by means of ordered number pairs or coordinates. By J. Scheumann and C. Sorenson 2011
6. axis horizontal axis X axis y axis X axis Vertical axis Y axis By J. Scheumann and C. Sorenson 2011
7. prime factorization The prime factorization of 24 is 2 * 2 * 2 * 3 or 2 * 3 3 A number expressed as a product of prime factors. By J. Scheumann and C. Sorenson 2011
8. factorization The original number is represented as a product of factors, and each of those factors is represented as a product of factors, and so on, until the factor string consists of prime numbers. By J. Scheumann and C. Sorenson 2011
9. multiplication 3 x 4 3(4) 3 • 4 SIGNAL WORDS By J. Scheumann and C. Sorenson 2011
10. greatest common factor The common factors 24 and 36 are 1, 2, 3, 4, 6 and 12. The greatest common factor is 24 and 36 is12. The largest factor that two or more numbers have in common. By J. Scheumann and C. Sorenson 2011
11. least common multiple The smallest that is a multiple of two or more numbers. By J. Scheumann and C. Sorenson 2011
12. integer -2, 2 6, -100 are examples of integers Any whole number or its opposite. By J. Scheumann and C. Sorenson 2011
13. rational number Click here for a two minute video clip A rational number is a number that can be written as a simple fraction (i.e. as a ratio). By J. Scheumann and C. Sorenson 2011
14. irrational number Click here for a two minute video clip π =3.1415926535897932384626433832795 (and more...) But some numbers cannot be written as a ratio of two integers ... ...they are called Irrational Numbers. By J. Scheumann and C. Sorenson 2011
16. percent (%) 1%= 1 100 or 0.01 1 one-hundredth 15 100 15%= or 0.15 Click here to convert fractions, to decimals to percents. Per hundred, or out of a hundred. By J. Scheumann and C. Sorenson 2011
17. ratio 1 : 3 1/4 3/4 if there is 1 boy and 3 girls you could write the ratio as:1:3 (for every one boy there are 3 girls)1/4 are boys and 3/4 are girls0.25 are boys (by dividing 1 by 4)25% are boys (0.25 as a percentage) Click here to try it! A ratio is a comparison of two numbers or measurements
18. rate A speed such as 55 miles per hour compares distance with time. A comparison of two quantities with unlike units. By J. Scheumann and C. Sorenson 2011
19. unit rate 2.48/pound $2.48 per pound When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates . By J. Scheumann and C. Sorenson 2011
20. per Five chairs per row per means to divide In each or for each. By J. Scheumann and C. Sorenson 2011
