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viii Precalculus with Trigonometry Course Sampler
Comprehensive support for your teaching
and a diverse array of electronic and online resources.
Instructor’s Resources at Key Online
Student Resources at Key Math
Precalculus with Trigonometry
Printed ResourcesTeacher’s EditionBrowse the front matter of the Teacher’s Edition to learn how it can help you plan your year, reach all students, and integrate technology into your teaching.
Solutions ManualComplementing the answers provided in the Teacher’s Edition, Solutions Manual
Assessment ResourcesTo assist you in evaluating your students’ understanding, Assessment Resources includes two forms of all section, chapter, and cumulative tests; solutions for all assessment materials; and formative and summative assessment suggestions from Paul Foerster.
Instructor’s Resource BookEnrichment materials developed specifically for the text include Paul Foerster’s popular Explorations; and Technology Activities using The Geometer’s Sketchpad®, Fathom Dynamic Data® software, and The Geometer’s Sketchpad®, Fathom Dynamic Data® software, and The Geometer’s Sketchpad®, Fathom Dynamic Data®
Comprehensive support for your teachingPrecalculus with Trigonometry comes with comprehensive resources to support Precalculus with Trigonometry comes with comprehensive resources to support Precalculus with Trigonometryyou in all areas of your teaching, including planning tools, teaching strategies, technology integration, supplemental enrichment materials, assessment tools, and a diverse array of electronic and online resources.
Precalculus with TrigonometryResources for Teaching and Learning
Printed Resources Online Resources
Precalculus with Trigonometry Course Sampler ix
Comprehensive support for your teaching
Instructor’s Resources at Key Online
Blackline Masters, and Technology Activities for Sketchpad, Sketchpad, Sketchpad Fathom, and CAS
Sketchpad® Presentation Sketches
Microsoft® Excel, and Fathom® formats
English Language Learners, with space to define mathematical terms in the student’s primary language
Student Resources at Key Math
templates.
Learn more at www.keymath.com/precalc.
Student EditionThe online version of the Student Edition contains all the content of the printed Student Edition with additional features to enrich students’ learning experience.
Learn more at www.keypress.com/keyonline.
Precalculus with Trigonometry
Printed Resources
Instructor’s Resources at Key OnlineAccess the electronic version of the Student Edition and download your teaching resources for Precalculus.
Teacher’s Edition (PDF)
Instructor’s Resource Book (PDF), including Instructor’s Resource Book (PDF), including Instructor’s Resource Book Foerster’s popular Explorations, Blackline Masters, and Technology Activities
Solutions Manual (PDF)Solutions Manual (PDF)Solutions Manual
Assessment Resources (Microsoft Word & PDF)Assessment Resources (Microsoft Word & PDF)Assessment Resources (
English Language Learners, with space to
Printed Resources Online Resources
x Precalculus with Trigonometry Course Sampler
Flexible in content and approach, Precalculus accommodates your school’s curriculum and standards, and it supports your teaching style so you can meet the needs of all your students.
Explorations
teaching notes clear examples
journal prompts, structured reviews, projects, computer-based activities, web-based Dynamic Precalculus Explorations.
Design your Precalculus course exactly the way you want it!
Flexible Content Flexible Approach
Customize the curriculum to match your course.Course Timelines on pages xviii-xix give you options for di�erent courses that you can teach with this text—including Math Analysis, Precalculus, Trigonometry, and more.
Using This Unit and Using This Chapter give you tips on which sections can be abbreviated or omitted.
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Selected Explorations are incorporated into the Student Edition; many others are provided in the Instructor’s Resource Book. Students work in cooperative groups or independently to solve problems, explore patterns, and make conjectures about mathematical properties. Explorations also provide rich discussion opportunities for whole-class participation.
Detailed teaching notes and clear examples support a lecture-based approach.
This curriculum also includes journal prompts, structured reviews, projects, computer-based activities, and web-based Dynamic Precalculus Explorations.
Choose the teaching approach that supports your style.
Flexible Content Flexible Approach
Course Timelines
Using This Unit Using This Chapter
xii Precalculus with Trigonometry Course Sampler
Precalculus helps you evaluate your students’ learning comprehension with a range of formative and summative assessment tools, including reading analysis, quick review, self-assessment, and section and chapter tests.
Evaluate your students’ progress and understanding.
Assessment Assessment
Reading Analysis allows you to quickly determine if students understand the content of the lesson and can verbally express that understanding. Journal entries provide additional insight into student understanding. Additional reading and re�ecting strategiesalso help your students develop into independent learners, preparing them for college and more advanced math courses.
Self-assessment
Tests
Formative assessment Section Notes
On-page answers in the Teacher’s EditionQuick Review builds e�ciency and increases retention of required skills. You can assess students’ retention of prerequisite concepts, and your students will build �uency in solving routine problems quickly, a skill they will use when taking standardized tests.
Precalculus with Trigonometry Course Sampler xiii
Assessment Assessment
Reading Analysis
Journal entriesreading and re�ecting strategies
Self-assessment is encouraged throughout Precalculus. Students can demonstrate mastery with Quick Review and Reading Analysis problems, Chapter Review sections, practice Chapter Tests with calculator and no-calculator portions, and Cumulative Review sections.
Tests in Assessment Resources are o�ered in Forms A and B, with calculator and no-calculator portions.
Formative assessment is supported by Section Notes in the Teacher’s Edition.On-page answers in the Teacher’s Edition allow you to quickly check correctness of answers.
Quick Review
xiv Precalculus with Trigonometry Course Sampler
The accessibility of the mathematics in Precalculus is central to its design. Precalculus combines varied forms of pedagogy and instructional strategies to engage, challenge, and motivate all learners—struggling students, English Language Learners, and advanced learners alike.
Support strong conceptual development for ALL your students.
Differentiated Instruction Differentiated Instruction
Reading Analysis
Journal
Each concept is clearly developed through graphical, algebraic, numerical, and verbal representations. This approach helps you reach more learners and better prepares students for AP® Calculus.
An investigative approach is supported with Explorationsin the Student Edition and in the Instructor’s Resource Book.
Sketchpad® Presentation Sketches, Dynamic Precalculus Explorations, and other technology activities allow for multiple approaches to understanding a topic.
Multiple representations make the mathematics accessible to more learners.
Notes for di�erentiating instruction
pre-reading
Bilingual dictionary templates,
Precalculus with Trigonometry Course Sampler xv
Differentiated Instruction Differentiated Instruction
Reading Analysis questions help students develop the literacy skills they need to succeed in high school, college, and beyond.
Journal prompts ask students to note their questions and observations about the topics they have been studying. By keeping a journal and sharing entries in class, students improve their ability to express themselves mathematically, in class, students improve their ability to express themselves mathematically, both orally and in writing.
Literacy strategies and notes for differentiating instruction are integrated throughout this curriculum.
graphical, algebraic, numerical, and verbal representations.
Explorations
Notes for di�erentiating instructionprovide insight into areas where students might struggle with concepts or language and suggest pre-reading and other strategies to help them succeed.
Bilingual dictionary templates, found at www.keypress.com/keyonline (for teachers) and www.keymath.com/precalc (for students), help ELL students acquire the mathematical vocabulary they need.
xvi Precalculus with Trigonometry Course Sampler
SketchDrag the sliders to change the values of the parameters A, B, C, and D in the function d(t) = C + A cos B(t − D).
Investigate 1. The waterwheel rotates at 6 revolutions per minute (rpm). Two seconds after you start a stopwatch, point P on the rim of the wheel is at its greatest height, d = 13 ft, above the surface of the water. The center of the waterwheel is 6 ft above the surface. Based on this information, write an equation expressing the height of point P as a function of time.
2. Drag the sliders for A, B, C, and D so that the function d matches the one you wrote in question 1. Press Show Graph of d, and then press Rotate Wheel to see if your solution matches the motion of the waterwheel. If not, readjust the sliders to obtain a function that matches.
Helpful online resources for both teachers and students include supplementary problems, calculator programs, and an enhanced online textbook—accessible whenever you need them.
Enhance your teaching with online resources.
Online Resources Online Resources
Key Math
online textbook.
Dynamic Precalculus Explorations.
calculator programs
data sets
At Key Online you’ll �nd extensive resources you’ll �nd extensive resources to support your teaching and your students’ learning.
Key Online: Resources for Teachers
teaching resources, including assessment materials and PDFs of the Teacher’s Edition.
supplementary problems and solutions.
presentations and activities using The Geometer’s Sketchpad®.
Learn more at www. keypress.com/keyonline.
Learn more at www.keymath.com/precalc.
SketchThe following sketch shows a unit circle in the uv-coordinate system with angles of measure x and 2x radians. The uv-coordinate system is superimposed on an xy-coordinate system with sinusoids y = sin x in red and y = sin 2x in blue.
Investigate 1. Drag the black point to change the value of x. What length on the unit circle does x correspond to? What length does 2x correspond to?
2. How do the (u, v) coordinates of each point correspond to the (x, y) coordinates of points on the sinusoids?
3. Press the Show Lines button. Explain why the red and blue horizontal lines intersect the sinusoids where they do. Does this confirm or change your answer to question 2?
4. Do the moving points on the sinusoids have the same value of x?
Precalculus with Trigonometry Course Sampler xvii
SketchDrag the sliders to change the values of the parameters A, B, C, and D in the function d(t) = C + A cos B(t − D).
Investigate 1. The waterwheel rotates at 6 revolutions per minute (rpm). Two seconds after you start a stopwatch, point P on the rim of the wheel is at its greatest height, d = 13 ft, above the surface of the water. The center of the waterwheel is 6 ft above the surface. Based on this information, write an equation expressing the height of point P as a function of time.
2. Drag the sliders for A, B, C, and D so that the function d matches the one you wrote in question 1. Press Show Graph of d, and then press Rotate Wheel to see if your solution matches the motion of the waterwheel. If not, readjust the sliders to obtain a function that matches.
Online Resources Online Resources
At Key Math students will �nd engaging activities and resources.
online textbook.
Dynamic Precalculus Explorations.
calculator programs
data sets graphing calculators, Excel, and Fathom®.
Key Math: Resources for Students
Key Online
teaching resources, assessment materials
Teacher’s Edition.
supplementary problems
presentations activities
www. keypress.com/keyonline.
Learn more at www.keymath.com/precalc.
SketchThe following sketch shows a unit circle in the uv-coordinate system with angles of measure x and 2x radians. The uv-coordinate system is superimposed on an xy-coordinate system with sinusoids y = sin x in red and y = sin 2x in blue.
Investigate 1. Drag the black point to change the value of x. What length on the unit circle does x correspond to? What length does 2x correspond to?
2. How do the (u, v) coordinates of each point correspond to the (x, y) coordinates of points on the sinusoids?
3. Press the Show Lines button. Explain why the red and blue horizontal lines intersect the sinusoids where they do. Does this confirm or change your answer to question 2?
4. Do the moving points on the sinusoids have the same value of x?
xviii Precalculus with Trigonometry Course Sampler
Precalculus fully integrates technology to help you illustrate difficult concepts and to give students the opportunity to explore ideas, draw mathematical conclusions, and test hypotheses. With this curriculum you can bring everyday relevance to abstract concepts, spark mathematical thinking, and prepare students for AP® Calculus.
Spark mathematical thinking with technology.
Technology Technology
Students use graphing calculatorsevery day to visually explore functions and other topics, investigate real-world applications, and prepare for AP Calculus.
Optional CAS Suggestions in the Teacher’s Edition help you integrate the use of CAS technology.
Additional CAS Problems enhance the problem set for students using a CAS, while CAS Activities provide more in-depth exploration of concepts.
Technology Notes
Dynamic Precalculus Explorations
Precalculus Presentation Sketches,
Precalculus with Trigonometry Course Sampler xix
fully integrates technology
bring everyday relevance to abstract concepts, spark mathematical thinking, and prepare students for AP® Calculus.
Technology Technology
graphing calculators
CAS Suggestions
CAS Problems
CAS Activities
Technology Notes suggest ways you can enrich your course with the use of Sketchpad® or Fathom®. They also provide guidance for using calculator programs.
Dynamic Precalculus Explorations, available at www.keymath.com/precalc, help students investigate a variety of concepts in the Student Edition.
Precalculus Presentation Sketches,available online, let you present concepts visually and dynamically with Sketchpad.
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Precalculus facilitates course planning with �exible timelines, extensive teaching notes, and easy access to teaching and technology resources.
Plan your course with exceptional teaching and technology resources.
Interleaf pages at the beginning of each chapter provide valuable information for planning, including a chapter overview, pacing guides, a list of teaching and technology resources, and a brief description of which sections in the chapter can be skipped if time is limited.
Course Planning Course Planning
Pacing Guides
Section Notes Problem Notes
Important Terms and Concepts
Precalculus with Trigonometry Course Sampler xxi
easy access to teaching and technology resources.
Interleaf pages provide valuable information for planning
Course Planning Course Planning
Pacing Guides at the start of each chapter help you plan.
Section Notes give extensive guidance for teaching each section and Problem Notes give tips and background on the concepts behind many problems.
Important Terms and Concepts are noted at the beginning of each section.
xxii Precalculus with Trigonometry Course Sampler
Students love this textbook because it is written with their interests and needs in mind. Author Paul Foerster draws on 50 years of classroom teaching experience and student feedback to give students exactly what teaching experience and student feedback to give students exactly what they need to succeed in this course and be prepared for AP Calculus.
Engage students, maximize their understanding of Precalculus, and prepare them for AP® Calculus.
AP Calculus Preparation Quick-Reference Icons
multiple representations
Quick Review problems
Exploration
Reading Analysis questions
5minQuick Review problems
Calculator notes
CAS notes and problems
Dynamic Precalculus Explorations
presentation sketches and activities.
Fathom® activities.
Refer to the Internet
Examples of student work
Objectives are stated in every section.
Important properties, definitions, techniques, andprocedures are called out in the text.
Graphing calculator use is modeled in examples.
Chapter Review, Chapter Test, and Concept Problems help students assess their own understanding, prepare for testing, and explore concepts further.
Glossary, Answers to Selected Problems, and a quick reference to important formulas appear in the back of the book, giving students extra support.
Problem Sets, found at the end of each section, include both conceptual problems and problems for drill and practice, to help students prepare for Calculus.
Precalculus with Trigonometry Course Sampler xxiii
AP Calculus Preparation Quick-Reference Icons
Foerster’s top three tips for success:
Use multiple representations to engage all students.
Assign Quick Review problems to refresh skills as needed and give students practice doing routine problems quickly, an important skill for standardized tests.
Start with an Exploration to make learning math fun.
Reading Analysis questions teach students how to read a
mathematics book by asking them to summarize the main ideas of the section in their own words.
5minQuick Review problems get students used to doing
routine things quickly. routine things quickly.
Calculator notes provide tips on using graphing calculators.
CAS notes and problems help you integrate CAS into your curriculum.
Enrich learning with Dynamic Precalculus Explorations atwww.keymath.com/precalc.
Enhance learning with Sketchpad® presentation sketches
and activities.
Dynamically explore data with Fathom® activities.
Refer to the Internet to answer a question, complete an activity,
or look for more information.
Examples of student work model Examples of student work model Examples of student workproblem solutions.
Objectives
Important properties, definitions, techniques,procedures
examples.
Chapter Review, Chapter Test, and Concept Problems
Glossary, Answers to Selected Problemsimportant formulas
Problem Sets