Unit 1: Number Puzzles and Multiples Towers (Multiplication and Division)

A.  Students use arrays and number puzzles to learn about factors, multiples, and other properties of numbers.

Vocabulary / Flashcards / Quizzes:  http://quizlet.com/55756/number-puzzles-and-arrays-flash-cards/

• Find all the ways to multiply whole numbers for a given product (K)
• http://www.basic-mathematics.com/multiplying-whole-numbers.html
  

• List all the factors of a number (K)

• http://www.mathsisfun.com/numbers/factors-all-tool.html
• http://www.purplemath.com/modules/factnumb.htm
• http://www.apples4theteacher.com/prime-factors.html
• http://www.algebra.com/algebra/homework/divisibility/factor-any-number-1.solver
• http://www.webmath.com/factint.html
  
• Identify the prime factorization of a number (K)
• http://www.mathsisfun.com/prime-factorization.html
• http://www.mathsisfun.com/prime-factorization-tool.php
  
• http://www.math.wustl.edu/primes.html
  
• Identify the least common multiple of two numbers (K)
• http://www.math.com/school/subject1/lessons/S1U3L3GL.html
  
• Identify the greatest common factor of two numbers (K)

B.  Students develop a number of strategies for solving 2-digit by 2-digit multiplication problems, including breaking numbers apart, solving an equivalent problem, and solving related problems.

• Multiply fluently by multiples of 10

C.  Students develop various strategies for solving division problems with 2-digit divisors and for interpreting the results.

D.  Students will gain flexibility in choosing strategies when solving multiplication and division problems.

E.  Students will demonstrate persistence while investigating multiple strategies.