1. NUMBERS AND OPERATIONS Kylie Sampson, Haley Fischer & Liz Sanders

2. Introduction to Numbers &Operations  Number and Operations examines numerous topics that encompass the three main categories in the Number and Operations strand of Principles and Standards of School Mathematics (NCTM)  understanding numbers, representations, relationships, and number systems  the meanings of operations and relationships among those operations  reasonable estimation and fluent computation. http://www.learner.org/courses/learningmath/number/

3. Standards  Understand numbers, ways of representing numbers, relationships among numbers, and number systems  Base Ten Numbers  Place Value  Carrying/Borrowing  Manipulatives/Objects  Counting (position & magnitude)  Even & Odd  Fractions, decimals  Ratios  Proportions  Prime numbers

4. Standards  Understand meanings of operations and how they relate to one another  Addition  Subtraction  Multiplication  Division (inverse of multiplication)  Square Root

5. Standards  Compute fluently and make reasonable estimates  Mental math  Estimation  Paper/pencil  Calculators  Using objects *develop fluency with number combinations and use them to mentally compute related problems [2x3 = 3x2] *using the strategies to estimate and judge the reasonableness of the result

6. Resources for Numbers & Operations practice  Math Skills Practice Activities (Grades 3-5):  http://www.cobbk12.org/sites/literacy/math/math2.ht m  Numbers and Operations (Pre-k – 2)  http://nlvm.usu.edu/en/nav/topic_t_1.html