Math 115 Week 8 Menu

NOTE: If you are going to PRINT the mini-lesson handouts, be sure to set your browser's FILE > PAGE SETUP for 0.5 inch margins and portrait orientation. Some cells have background color -- this color will only print if you turn on printing of background colors and images (TOOLS > INTERNET OPTIONS > ADVANCED TAB > PRINTING).

NOTE: If you would like to PRINT a single screen from the mini-movies, you can right-click on the screen (as the movie is playing or pause the movie). Select PRINT from the menu and the full movie window will print.

Week 8 Topics and Objectives:

The Real Number System

Order a set of real numbers.

Determine the absolute value of a number.

Simplify absolute value expressions.

Perform mathematical functions for real numbers.

Week 8 Concepts & Mini-lessons:

Number Line Tutorials

Number line tutorial (from Math123xyz)

Number Line Racer Animated Tutorial (YouTube video)

Introduction to Integers (positive and negative numbers)

Integers (from Teacher Tube)

Integers and Absolute Value (from Teacher Tube)

Signed Numbers I (from MathDork)

Integers (from Nutshell Math on YouTube)

Calculating with Integers

Integer Operations Poem (from YouTube)

Adding on a Number line (from Math Star)

Adding & Subtracting Integers Using Integer Tiles (from Newburg on YouTube)

Adding & Subtracting Integers (from Bedley on YouTube)

Adding & Subtracting Negative Numbers (from Khan Academy on YouTube)

Subtracting Integers (from YourTeacher.com on YouTube)

Why do two negatives make a positive? (from Chycho on YouTube)

Multiplying Effects of Integers (from seericks on YouTube)

Multiplication with a Positive Leading Integer (from Math Star)

Multiplication with a Negative Leading Integer (from Math Star)

Be sure to watch the videos for this week found in MathZone. Did you know that MathZone has videos on some of your CheckPoint problems?

Wk 8 Quick Reference Card (DOC, 31 KB)

Week 8 CheckPoint Tips:

Starting in Week 8, you are working with Real Numbers. You do not want to use the letter-x for multiplication. Use the dot (•) for multiplication. This symbol is made by holding down the ALT key and typing 0149 on the numerical keypad. The division symbol (÷) can be made by holding down the ALT key and typing 0247 on the numerical keypad.

When working with Real Numbers in Week 8, you may leave fractions as improper -- you do not need to change improper fractions to mixed numbers

Week 8 Mini-movies:

Video help with Week 8 CheckPoint Problems (similar problems used to teach concepts)

Section 9.1 #11-16 6 min 54 sec

Section 9.1 #23-38 2 min 10 sec

Section 9.1 #39-44 2 min 4 sec

Section 9.2 #1-50 1 min 12 sec and 2 min 26 sec

Section 9.2 #55-62 1 min 3 sec

Section 9.2 #63-66 2 min 21 sec

Section 9.2 #72 1 min 23 sec

Section 9.3 #1-52 2 min 27 sec and 3 min 23 sec

Section 9.3 #54 1 min 30 sec

Section 9.4 #1-92 2 min 37 sec and 4 min 2 sec and
1 min 16 sec and 2 min 53 sec

Section 9.5 #14 & #18 -- refer to page 704 Objective 2
When a number is divided into zero, the answer is zero.
When a number is divided by zero, the result is undefined.
When zero is divided by zero, this is the indeterminate form.

Section 9.5 #1-60 1 min 43 sec and 2 min 45 sec and
3 min 16 sec

Chapter 9 Summary Exercises -- a review of all above

What are the Mini-movies?

What are the mini-movies? The mini-movies are marked with a icon. They are are flash video files that contain a teaching presentation with an audio track. These were recorded in my office (not lecture) so they are short, but very dense (crammed full of information). Movie controls are available so you can replay, pause, and skip sections.