1 WORK PROGRAM Chapter 7 Patterns and algebra Strand: Patterns and algebra Substrands and outcomes: Patterns and algebra PAS2.1 Generates, describes and records number patterns using a variety of strategies and completes simple number sentences by calculating missing values Patterns and algebra PAS3.1a Records, analyses and describes geometric and number patterns that involve one operation using tables and words Algebraic techniques PAS4.1 Uses letters to represent numbers and translates between words and algebraic symbols Number patterns PAS4.2 Creates, records, analyses and generalises number patterns using words and algebraic symbols in a variety of ways Algebraic techniques PAS4.3 Uses the algebraic symbol system to simplify, expand and factorise simple algebraic expressions Section Are you ready? (page 260) GC tips, Investigations, History of mathematics, Maths Quest challenge, 10 Quick Questions, Code puzzles SkillSHEETS, WorkSHEETS, Interactive games, Test yourself, Topic tests (CD–ROM) SkillSHEETS (page 260) 7.1: Number patterns 7.2: Worded operations 7.3: Describing a number pattern from a table 7.5: Using tables to show number patterns 7.6: Alternative expressions used to describe the four operations Technology applications (CD–ROM) Learning outcomes PAS2.1 finding a higher term in a number pattern given the first five terms describing a simple number pattern in words PAS3.1a working through a process of building a simple geometric pattern involving multiples, completing 2 Using rules (page 261) WE 1, 2, 3 Ex 7A Using rules (page 265) Investigation: Number patterns (page 261) Investigation: Geometric patterns (page 262) Maths Quest challenge: Q1-2 (page 266) History of mathematics: The Development of Algebra (page 267) SkillSHEET 7.1: Number patterns (page 261) SkillSHEET 7.2: Worded operations (page 265) Writing and finding formulas (page 268) WE 4a-c, 5, 6 10 Quick Questions 1 (page 273) SkillSHEET 7.3: Describing a number pattern from a table GC program – Casio: Finding the formula (page 271) a table of values, and describing the pattern in words working through a process of identifying a simple number pattern involving only one operation, completing a table of values, and describing the pattern in words PAS3.1a working through a process of identifying a simple number pattern involving only one operation, completing a table of values, and describing the pattern in words working through a process of identifying a simple number pattern involving only one operation, completing a table of values and describing the pattern in words PAS4.1 using letters to represent numbers and 3 Ex 7B Writing and finding formulas (page 270) Substitution (page 274) WE 7a-b, 8 Ex 7C Substitution (page 275) Investigation: Nutrition panels (page 277) Code puzzle (page 279) (page 270) WorkSHEET 7.1 (page 272) GC program – TI: Finding the formula (page 271) SkillSHEET 7.4: Substitution into rules (page 275) Excel: Substitution (page 275) Mathcad: Substitution (page 275) Excel: Substitution game (page 275) developing the notion that a letter is used to represent a variable PAS4.2 using a process that consists of identifying a number pattern (including decreasing patterns), completing a table of values, describing the pattern in words and algebraic symbols representing and applying patterns and relationships in algebraic forms (Applying strategies, Communicating) PAS4.3 substituting into algebraic expressions generating a number pattern from an algebraic expression PAS4.1 using letters to represent numbers and developing the notion that a letter is used to represent a variable translating between 4 Problem solving using algebra (page 280) WE 9 Ex 7D Problem solving using algebra (page 281) Investigation: How high SkillSHEET 7.5: Using will it grow? (page 283) tables to show number 10 Quick Questions 2 patterns (page 281) (page 284) WorkSHEET 7.2 (page 283) GC program – Casio: Finding the formula (page 281) GC program – TI: Finding the formula (page 281) Excel: Substitution (page 281) Mathcad: Substitution (page 281) words and algebraic symbols and between algebraic symbols and words representing and applying patterns and relationships in algebraic forms (Applying strategies, Communicating) PAS4.1 using letters to represent numbers and developing the notion that a letter is used to represent a variable translating between words and algebraic symbols and between algebraic symbols and words PAS4.2 using a process that consists of building a geometric pattern, completing a table of values, describing the pattern in words and algebraic symbols representing and applying patterns and relationships in 5 algebraic forms (Applying strategies, Communicating) checking pattern descriptions by substituting further values (Reasoning) PAS4.3 translating from everyday language to algebraic language and from algebraic language to everyday language Algebraic expressions (page 285) WE 10a-b Ex 7E Algebraic expressions (page 286) Expressions and equations (page 287) Maths Quest challenge Q1-3 (page 290) SkillSHEET 7.6: Alternative expressions PAS4.1 using letters to represent numbers and developing the notion that a letter is used to represent a variable using concrete materials such as cups and counters to model expressions translating between words and algebraic symbols and between algebraic symbols and words PAS4.1 using letters to 6 WE 11, 12a-e, 13a-d Ex 7F Expressions and equations (page 289) Code puzzle (page 291) used to describe the four operations (page 289) Like terms (page 292) WE 14a-e, 15a-b Ex 7G Like terms (page 294) Maths Quest challenge Q1-5 (page 295) Game time 001 (page 294) Game time 002 (page 295) WorkSHEET 7.3 (page 295) Summary (page 296) Chapter review (page 297) ‘Test yourself’ multiple choice questions (page 298) Topic tests (2) Mathcad: Simplifying expressions (page 295) represent numbers and developing the notion that a letter is used to represent a variable recognising and using equivalent algebraic expressions translating between words and algebraic symbols and between algebraic symbols and words PAS4.3 recognising like terms and combining like terms to simplify algebraic expressions substituting into algebraic expressions