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MAT 221



Roman Numerals Pencast

Babylonian Pencast

Mayan Pencast



Academic Integrity Policy (at AACC)


NCTM (National Council of Teachers of Mathematics): Mathematics Standards

Ch 1.2, Problem Solving: Dart Problem


Ch 1, Connected Table Problem


Homework Assignment 1, part A
Due: Tuesday, Feb 1, 2016


Instructions: Students who were absent 1/27/2016

Ch 1, Savings Problem

Ch 1, Bicycle and Tricycle Problem

Ch 1, Hexagon Problem

Homework Assignment 1, part B
Due: Thursday, Feb 3, 2016


Patterns: The Beauty of Mathematics, fill in yourself

Patterns: The Beauty of Mathematics, solutions


Ch 1.5, What's the Pattern?


Homework: Assignment 2, Problem 1
Homework: Assignment 2, Problem 2, 3
Homework: Assignment 2, Problem 4, 5
Due: Thursday, Feb 10, 2016

Activity: ch 1.5, Patterns


Lecture Notes: Set Theory, Intro

Lecture Notes: Set Theory


Homework: Assignment 3, Part A, Set Theory
Due: Thursday, Feb 10, 2016


Pascal's Triangle


Handout: On the Job


Ch 2.2: What's the Pattern? Geometric Example 1

Handout: Triangular Numbers


Ch 2.2: What's the Pattern? Geometric Example 2

Ch 2.2: What's the Pattern? Geometric Example 3

Extra Practice, Ch 2.2, Geometric Patterns


Homework: Assignment 3, Part B, Problem 1
Due: Thursday, Feb17, 2016
Homework: Assignment 3, Part B, Problem 2
Due: Thursday, Feb 17, 2016


Extra Practice for Test 1: Book Problems
For worked out solutions go one step back and click on the "Tests" button.


Lecture Notes: Logic, Ch 1.5, Part 1


Homework: Assignment 4, Part A, Logic
Due: Tuesday, Feb 22, 2016
Homework: Assignment 4, Part A, Logic, Solutions


Lecture Notes: Logic, Ch 1.5, Part 2


Extra Practice, Logic, Part A (statements)
Extra Practice, Logic, Part A, Solutions


Homework: Individual Idea, Cinconia
Due: Tuesday, March 1, 2016

In case you want to print out an extra table:
Extra Table

Cinconia, entire assignment


For people absent 3/8, the following activity is DUE Thur 3/10:
In-class Activity: Bases, Part A
Access to MANIPULATIVES (virtually): http://nlvm.usu.edu
choose 3 – 5
click on “Base Blocks” (3rd down)
change the base to 5
you can click and drag the manipulatives in the spaces below to visualize numbers like the ones for # 2 on the activity.


For people absent 3/8, # 2 of the following activity is DUE Thur 3/10:
In-class Activity: Bases, Part B
If you want to do # 1 of this activity, use a die that has a 0 instead of a 6 (put a sticker to indicate 0)


Extra Practice, Logic, Part B (arguments)
Extra Practice, Logic, Part B, Solutions


Homework: Assignment 4, Part B, Logic
Due: Tuesday, Mar 14, 2016
Homework: Assginment 4, Part B, Logic, Solutions


Homework: Assignment 5 & Extra Practice Assignment from book
Due: Thursday, Mar 16, 2016

Extra Practice: Assign 5, solutions, page 1
Extra Practice: Assign 5, solutions, page 2



There is also a practice handout for Roman Numerals. Ask for a copy in class.

Common Core Standards, Mathematics (In case you have time to look.)

Tuesday 3/15: We covered p.52/53 (part 2) and p. 51 in your green Explorations book. For p. 52/53 be able to work addition problems using these alternative methods.

Announcement: Test 2 is on Thursday, April 7, 2016.


Homework: Assignment 6
Due: Thu, Mar 31, 2016


Extra Practice for Test 2
Extra Practice for Test 2, Answers


In-class handout, subtraction:
Work each with the Standard American Algorithm and with the German Algorithm.


Tuesday 3/17: We covered p.56/57 (part 2) and p. 55 in your green Explorations book. For p. 56/57 be able to work subtraction problems using these alternative methods. Also be proficient with the German Algorithm ("Algorithm used in many other countries") from p. 161 in the textbook. Learn how to subtract in bases other than 10.


Tuesday 3/29: We covered p.68 in your green Explorations book and learned two additional alternative multiplication algorithms.

Thursday 3/31: We covered p.73 in your green Explorations book as well as the worksheet below.

In-class handout, mistakes you see in the classroom, page 1

In-class handout, mistakes you see in the classroom, page 2


In-class handout, Number Systems, Maya

Homework: Assignment 7, and Extra Practice
Due: Tuesday, April 12, 2016


In-Class Worksheet. For work WHY divisibility rules for 3, 9, and 8 work.

Homework: Read chapter 4.1-4.3 for Thursday 4/14.


Homework: Assignment 8 and Extra Practice
Due: Tuesday, April 19, 2016

Extra Practice, ch 4, solutions
Extra Practice problems were included on homework sheet of HW 8


We worked the following on 4/19/2016:
1) With three different methods, find LCM and GCF of the pairs 14, 18; then 24, 30; lastly 150, 225.
2) With the formula, work out the LCM of the numbers 21 and 15, using the their GCF of 3.
We also reviewed important inclusions in explanations on student mistakes in division problems
and played out the Sieve of Eratosthenes to find prime numbers.
Reading is assinged through as much of chapter 5 as you can fit.


In Class Worksheet (ch 4)


Extra Practice (ch 5.1, 5.2)
We have covered material from ch 5.1 (will be on test 3 on Thursday).
Ch 5.2 will be discussed next week (and is not on test 3).



In Class Worksheet (ch 5.2)


After the test the assignment from the green "Explorations" book was
p. 108 top: # 6, 7
p. 108 bottom (Part 2): # 1 all, 2
p. 109 top (Part 3): # 1 all
p. 113 top (Part 1): # 1, 2, 3
p. 113 bottom (Part 2): # 1a


In Class Worksheet: ch 5.2, Comparing Fractions



In Class Worksheet, ch 5.3, Addition, Subtraction of Mixed Numbers
In Class Worksheet, ch 5.3, Addition, Subtraction of Mixed Numbers, Solutions
Do not work through improper fractions. It has to be done the "best" and most efficient way as shown in "solutions".

In Class Worksheet, ch 5.3, More Addition, Subtraction of Mixed Numbers


In Class Worksheet, ch 5.3, Multiplication, Division of Mixed Numbers


Watch the following VIDEOS:
Link to video 1 showing student thinking (fractions)

Link to video 2 showing student thinking (fractions)

Link to video 3 showing a classroom activity (fractions)
Scroll down, then click on the little green VoD button for #34 "Arrays and Fractions".
(Button on upper right corner of each description). You may have to click the button TWICE for it to start.





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