# ALEX Lesson Plan

## Factorials: Let's have a Dinner Party!

You may save this lesson plan to your hard drive as an html file by selecting "File", then "Save As" from your browser's pull down menu. The file name extension must be .html.

This lesson provided by:
 Author: Lynda Wilder System: Blount County School: Hayden Middle School
General Lesson Information
 Lesson Plan ID: 33157 Title: Factorials: Let's have a Dinner Party! Overview/Annotation: In collaborate groups of four, students will act out a dinner party where four dinner guests will attend. The students must act out the different ways to arrange four dinner guests. This is a College- and Career-Ready Standards showcase lesson plan.
Associated Standards and Objectives
Content Standard(s):
 MA2015 (6) 13. Write, read, and evaluate expressions in which letters stand for numbers. [6-EE2] a. Write expressions that record operations with numbers and with letters standing for numbers. [6-EE2a] Example: Express the calculation, "Subtract y from 5," as 5 - y. b. Identify parts of an expression using mathematical terms (sum, term, product, factor, quotient, coefficient); view one or more parts of an expression as a single entity. [6-EE2b] Example: Describe the expression 2(8 + 7) as a product of two factors; view (8 + 7) as both a single entity and a sum of two terms. c. Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations). [6-EE2c] Example: Use the formulas V = s3 and A = 6s2 to find the volume and surface area of a cube with sides of length s = 1/2. MA2015 (6) 17. Use variables to represent numbers, and write expressions when solving a real-world or mathematical problem; understand that a variable can represent an unknown number or, depending on the purpose at hand, any number in a specified set. [6-EE6]

Local/National Standards:

Mathematical Practice Standards:

3.  Construct viable arguments and critique the reasoning of others.

7.  Look for and make use of structure.

8.  Look for  and express regularity in repeated reasoning.

Primary Learning Objective(s):

Students will use a real-life problem to calculate permutations and/or factorials.

Preparation Information
 Total Duration: 31 to 60 Minutes Materials and Resources: Set of Cards that have the following letters on them:  A, B, C, D.  Cards  One set for each collaborative group.  paperpencillarge chart paperColored cards for sorting students into groups Technology Resources Needed: ProjectorComputer Background/Preparation: Students should be fluent in multiplication facts and recognizing number patterns.Teacher should prepare Dinner Guest Cards before the students arrive for class.
Procedures/Activities: