GACE Middle Grades 013 Mathematics Teacher Certification Exam By: Sharon Wynne, M.S. Southern Connecticut State University XAMonline, INC. Boston Copyright © 2008 XAMonline, Inc. All rights reserved. No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage and retrievable system, without written permission from the copyright holder. To obtain permission(s) to use the material from this work for any purpose including workshops or seminars, please submit a written request to: XAMonline, Inc. 21 Orient Ave. Melrose, MA 02176 Toll Free 1-800-509-4128 Email: TEACHER CERTIFICATION STUDY GUIDE Table of Contents SUBAREA I. NUMBERS AND OPERATIONS COMPETENCY 1.0 UNDERSTAND THE STRUCTURE OF THE BASE TEN NUMERATION SYSTEM AND NUMBER THEORY Skill 1.1 Analyze the structure of the base ten number system ..................... 1 Skill 1.2 Demonstrate knowledge of the characteristics of whole numbers ............................................................................... 4 Skill 1.3 Apply the Fundamental Theorem of Arithmetic to determine the prime factorization of numbers ........................................................ 6 Skill 1.4 Use principles of number theory to solve problems in applied contexts ........................................................................................... 7 COMPETENCY 2.0 UNDERSTAND DIFFERENT REPRESENTATIONS OF REAL NUMBERS Skill 2.1 Identify and analyze a variety of models for representing numbers .......................................................................................... 8 Skill 2.2 Demonstrate knowledge of equivalency among different representations of numbers ............................................................. 9 Skill 2.3 Distinguish between rational and irrational numbers ..................... 15 Skill 2.4 Compare, order, and round different representations of numbers ........................................................................................ 16 Skill 2.5 Select and use different representations of numbers to solve problems in applied contexts ......................................................... 16 COMPETENCY 3.0 UNDERSTAND OPERATIONS ON REAL NUMBERS Skill 3.1 Identify, analyze, and apply number properties and number operations ...................................................................................... 18 Skill 3.2 Use properties of number operations to justify computational procedures .................................................................................... 19 Skill 3.3 Apply the laws of exponents to simplify expressions ..................... 20 Skill 3.4 Solve problems use real numbers in applied contexts ................... 21 MIDDLE SCHOOL MATH. i TEACHER CERTIFICATION STUDY GUIDE SUBAREA II. MEASUREMENT AND GEOMETRY COMPETENCY 4.0 UNDERSTAND THE PRINCIPLES AND APPLICATIONS OF MEASUREMENT Skill 4.1 Use appropriate units of measurement to solve a variety of problems ............................................................................................ 22 Skill 4.2 Convert measurements within the customary and metric systems ............................................................................................. 31 Skill 4.3 Demonstrate knowledge of strategies for estimating measurements and determining if answers are reasonable ....................................... 33 Skill 4.4 Derive and apply formulas for perimeter, area, surface area, and volume for two and three-dimensional shapes and figures ................ 33 Skill 4.5 Use nets and cross sections to analyze three-dimensional figures ................................................................................................ 33 Skill 4.6 Apply the concepts of similarity, scale factors, and proportional reasoning to solve measurement problems ....................................... 35 COMPETENCY 5.0 UNDERSTAND THE PRINCIPLES AND APPLICATIONS OF EUCLIDEAN GEOMETRY Skill 5.1 Analyze and apply properties of points, lines, planes, angles, lengths, and distances ....................................................................... 36 Skill 5.2 Identify, analyze, and justify basic geometric constructions with compass and straightedge ................................................................ 42 Skill 5.3 Analyze and apply the properties of similarity and congruence ......... 45 Skill 5.4 Analyze and apply the properties of triangles, quadrilaterals, and other polygons ................................................................................... 51 Skill 5.5 Solve problems in applied contexts ................................................... 55 COMPETENCY 6.0 UNDERSTAND COORDINATE AND TRANSFORMATIONAL GEOMETRY Skill 6.1 Represent basic geometric figures in the coordinate plane ............... 56 MIDDLE SCHOOL MATH. ii TEACHER CERTIFICATION STUDY GUIDE Skill 6.2 Apply concepts and properties of slope, midpoint, parallelism, perpendicularity, distance, and congruence to solve problems in the coordinate plane and in applied contexts .......................................... 57 Skill 6.3 Identify and apply concepts of symmetry and transformations to figures in the coordinate plane .......................................................... 60 Skill 6.4 Use dilations and proportionality to analyze similar figures in the coordinate plane ................................................................................ 63 Skill 6.5 Identify and describing three-dimensional figures formed by transformations of plane figures through space ................................. 64 SUBAREA III. PATTERNS, ALGEBRA, AND FUNCTIONS COMPETENCY 7.0 UNDERSTAND PATTERNS, RELATIONS, AND FUNCTIONS Skill 7.1 Analyze, extend, and describe a variety of patterns using rules and algebraic expression .......................................................................... 65 Skill 7.2 Interpret and compare verbal and graphical descriptions of real- world relations ................................................................................... 68 Skill 7.3 Identify, describe, and analyze the properties of relations and functions in a variety of forms ............................................................ 68 Skill 7.4 Describe and analyze direct and inverse proportional relationships graphically and algebraically ............................................................. 70 Skill 7.5 Describe and use various representations of nonlinear functions ..... 72 COMPETENCY 8.0 UNDERSTAND THE PROPERTIES AND TECHNIQUES OF ALGEBRAIC OPERATIONS Skill 8.1 Simplify, evaluate, and perform operations on polynomials and other algebraic expressions ............................................................... 81 Skill 8.2 Use number properties to justify algebraic manipulations ................. 83 Skill 8.3 Solve algebraic equations, including problems involving absolute values ................................................................................................ 85 Skill 8.4 Translate verbal descriptions into algebraic expressions that model problem situations ............................................................................. 87 MIDDLE SCHOOL MATH. iii TEACHER CERTIFICATION STUDY GUIDE Skill 8.5 Model and solve a variety of problems that involve ratio and proportion .......................................................................................... 88 COMPETENCY 9.0 UNDERSTAND LINEAR FUNCTIONS AND THEIR APPLICATIONS Skill 9.1 Distinguish between linear and nonlinear functions ........................... 91 Skill 9.2 Analyze the relationship between a linear equation and its graph ................................................................................................. 92 Skill 9.3 Describe and use various representations of linear functions ........... 93 Skill 9.4 Select a linear equation that best fits a set of data ............................ 93 Skill 9.5 Represent and solve problems involving linear equations and systems of linear equations algebraically and graphically and interpreting solutions to these problems ............................................ 94 Skill 9.6 Interpret the meaning of the slope and y-intercept in a given situation ............................................................................................. 97 Skill 9.7 Model and solve problems involving inequalities Use a variety of techniques ......................................................................................... 100 SUBAREA IV. DATA ANALYSIS AND PROBABILITY COMPETENCY 10.0 UNDERSTAND THE PROCESS OF COLLECTING, ORGANIZING, DESCRIBING AND INTERPRETING DATA Skill 10.1 Demonstrate knowledge of the nature of sampling, the collection of data through surveys and experiments, the importance of sample size, and random sampling ................................................................ 107 Skill 10.2 Select an appropriate format for organizing and displaying data ................................................................................................... 108 Skill 10.3 Analyze data in a variety of formats................................................... 112 Skill 10.4 Determine and analyze measures of central tendency, mode, and dispersion .......................................................................................... 114 Skill 10.5 Interpret summary statistics to determine trends and draw valid conclusions from data ........................................................................ 117 MIDDLE SCHOOL MATH. iv TEACHER CERTIFICATION STUDY GUIDE Skill 10.6 Analyze and drawing conclusions about the relationship between two variables ..................................................................................... 120 COMPETENCY 11.0 UNDERSTAND THE THEORY AND APPLICATIONS OF PROBABILITY Skill 11.1 Apply basic concepts of set theory .................................................... 123 Skill 11.2 Apply addition and multiplication counting principles to determine the number of outcomes related to an event ..................................... 124 Skill 11.3 Determine probabilities of simple and compound events .................. 129 Skill 11.4 Use different graphical representations to calculate and interpret probabilities ....................................................................................... 133 Skill 11.5 Demonstrate knowledge of methods for predicting the probability of an event ............................................................................................. 134 SUBAREA V. MATHEMATICAL PROCESSES AND PERSPECTIVES COMPETENCY 12.0 UNDERSTAND HOW TO USE A VARIETY OF REPRESENTATIONS TO COMMUNICATE MATHEMATICAL IDEAS AND CONCEPTS AND CONNECTIONS AMONG THEM Skill 12.1 Communicate mathematical ideas use a variety of representations ................................................................................. 137 Skill 12.2 Translate among algebraic, graphical, symbolic, diagrammatic, and other means of presenting mathematical ideas ................................. 138 Skill 12.3 Translate between mathematical language, notation, and symbols and everyday language ..................................................................... 139 Skill 12.4 Use appropriate mathematical terminology with precision and accuracy ............................................................................................ 140 Skill 12.5 Identify and apply mathematics in contexts outside of mathematics ...................................................................................... 140 MIDDLE SCHOOL MATH. v TEACHER CERTIFICATION STUDY GUIDE COMPETENCY 13.0 UNDERSTAND MATHEMATICAL REASONING, PROOF, AND PROBLEM-SOLVING STRATEGIES IN MATHEMATICS AND OTHER CONTEXTS Skill 13.1 Demonstrate knowledge of the nature of proof in mathematics, including direct and indirect proof, and the use of counter examples .............................................................................. 142 Skill 13.2 Apply correct mathematical reasoning to draw valid conclusions and to construct and evaluate arguments and proofs ........................ 144 Skill 13.3 Identify inductive and deductive reasoning and use them to develop and investigate the validity of conjectures ......................................... 144 Skill 13.4 Select an appropriate problem-solving strategy for investigating or solving a particular problem ............................................................... 150 Skill 13.5 Apply mathematical concepts, strategies, and appropriate technologies across the curriculum and in everyday contexts to model and solve problems ................................................................. 152 Essential Tips for Every Math Teacher ............................................................... 153 Web Links .............................................................................................................. 161 Sample Test ........................................................................................................... 165 Sample Test - Answer Key ................................................................................... 179 Sample Test - Rigor Table .................................................................................... 180 Rationales for Sample Test .................................................................................. 181 Sample Test II ........................................................................................................ 214 Sample Test II - Answer Key ................................................................................ 228 Sample Test II - Rigor Table ................................................................................. 229 Rationales for Sample Test II ............................................................................... 230 MIDDLE SCHOOL MATH. vi TEACHER CERTIFICATION STUDY GUIDE Great Study and Testing Tips! What to study in order to prepare for the subject assessments is the focus of this study guide but equally important is how you study. You can increase your chances of truly mastering the information by taking some simple, but effective steps. Study Tips: 1. Some foods aid the learning process. Foods such as milk, nuts, seeds, rice, and oats help your study efforts by releasing natural memory enhancers called CCKs (cholecystokinin) composed of tryptophan, choline, and phenylalanine. All of these chemicals enhance the neurotransmitters associated with memory. Before studying, try a light, protein-rich meal of eggs, turkey, and fish. All of these foods release the memory enhancing chemicals. The better the connections, the more you comprehend. Likewise, before you take a test, stick to a light snack of energy boosting and relaxing foods. A glass of milk, a piece of fruit, or some peanuts all release various memory-boosting chemicals and help you to relax and focus on the subject at hand. 2. Learn to take great notes. A by-product of our modern culture is that we have grown accustomed to getting our information in short doses (i.e. TV news sound bites or USA Today style newspaper articles.) Consequently, we’ve subconsciously trained ourselves to assimilate information better in neat little packages. If your notes are scrawled all over the paper, it fragments the flow of the information. Strive for clarity. Newspapers use a standard format to achieve clarity. Your notes can be much clearer through use of proper formatting. A very effective format is called the “Cornell Method.” Take a sheet of loose-leaf lined notebook paper and draw a line all the way down the paper about 1-2” from the left-hand edge. Draw another line across the width of the paper about 1-2” up from the bottom. Repeat this process on the reverse side of the page. Look at the highly effective result. You have ample room for notes, a left hand margin for special emphasis items or inserting supplementary data from the textbook, a large area at the bottom for a brief summary, and a little rectangular space for just about anything you want. MIDDLE SCHOOL MATH. vii