Tuesday, February 06, 2007
Geometry (Class 46)
Overview
Today we will learn how to use a different approach to prove statements.
Textbook Sections
§6.7 (Txt. p.372) Areas of Triangles and Quadrilaterals
Key Attitudes
Mathematics is about justification.
Key Ideas
Some statements only have two possibilities-- either they are true or they are false.
Key Skills
Finding the area of a quadrilateral using a formula.
Justifying a formula for finding the area of a quadrilateral using triangles and algebra
Vocabulary
Contradiction
Law of Excluded Middle
Handouts
Chapter 6: Lesson 4 - Applications
Assignment
Areas of Quadrilaterals— Application
Posted by Mr. Holcomb on 02/06 at 08:37 AM
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Monday, February 05, 2007
Algebra (Class 47)
Overview
Today we continue our work with Algebraic Fractions by clarifying what is going on when we compare two quantities and how this relates to comparing fractions. We also build up our understanding of the concept and methods for simplifying fractions, developing a general method that we can use for simplifying algebraic fractions
Textbook Sections
Key Attitudes
Mathematics is about looking for patterns.
Key Ideas
When comparing quantities, a common unit is needed.
Key Skills
Converting units
Naming fractions
Finding equivalent fractions
Simplifying fractions
Handouts
No Handouts Posted
Assignment
Txt. p. 245 #10, 11
Txt. p.243 #13-19, 26-28
Posted by Mr. Holcomb on 02/05 at 08:51 AM
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Friday, February 02, 2007
Geometry (Class 45)
Overview
Today we finish our work developing formulas for calculating the areas of quadrilaterals based on cutting the quadrilaterals up into triangles. If time permits, we will being our work on proof by contradiction.
Textbook Sections
Key Attitudes
Mathematics is about justification.
Key Ideas
Quadrilaterals can be cut into triangles.
Finding the area of triangles can help you find the area of quadrilaterals.
Key Skills
Finding the area of a quadrilateral using a formula.
Justifying a formula for finding the area of a quadrilateral using triangles and algebra
Handouts
Birdhouse Problem
Assignment
Birdhouse problem
Txt. p.258 #25-27, 39-42
Finish Chapter 6 Lesson 4- Areas of Quadrilaterals (Due at the start of next class)
Posted by Mr. Holcomb on 02/02 at 09:14 AM
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Thursday, February 01, 2007
Algebra (Class 46)
Overview
Today we begin our work with algebraic fractions by thinking back about fractions involving “only” numbers. We also spend some more time thinking about the sums of odd and even numbers.
Textbook Sections
No New Text Book Sections
Key Attitudes
Mathematics is about looking for patterns.
Key Ideas
The meaning of a denominator and a numerator
Key Skills
Converting units
Naming fractions
Vocabulary
denominator
numerator
Handouts
No Handouts Posted
Assignment
Txt. p. 245 #7-9
Txt. p.243 #1-12
Posted by Mr. Holcomb on 02/01 at 08:04 AM
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