## BINOMIAL MULTIPLICATION, PART TWO—DYNAMIC ALGEBRA TILES

Prerequisites:

Students use grids of virtual algebra tiles to interpret and solve binomial multiplication problems of the form
(ax + b)(cx + d), where b and/or d is negative. Students build grids whose dimensions correspond to the binomial factors and then find and add the partial products to determine the overall product.

OBJECTIVES
• Students will find the products of two binomials using a grid of algebra tiles.
• Students will use virtual algebra tiles to expand binomial multiplication problems of the form (ax + b)(cx + d), where b and/or d is negative.
• Students will relate a multiplication problem represented in numerical form to the same problem represented with algebra tiles.

COMMON CORE CONNECTIONS
Mathematical Practices

(1) Make sense of problems and persevere in solving them; (2) Reason abstractly and quantitatively; (3) Construct viable arguments and critique the reasoning of others; (5) Use appropriate tools strategically; (7) Look for and make use of structure.

Content Standards

A-APR; A-SSE3a 