AP PreCalculus+ Classwork and Videos
Spring 2025-26
Updated 03/26/2026

Day Date

Classwork - activities, exercises, practice, etc that is completed during class time on the day listed on this assignment sheet.  Skills from the previous day's homework video will be featured in this day's classwork.  Unfinished classwork becomes homework due the next class period.
Homework - most often comprised of watching, listening, taking notes, and completing sample problems from an instructional video. Evidence of homework completion is due the class day following its listed date on this assignment sheet.




Mon
HR
1/5
Classwork: Welcome back
Homework: Video and Notes 3.1 A - Intro to Periodic Function - Examples 1-6
Tue
HR/
Special
1/6
Classwork:  Review Videos, Begin Unit 3.1 Practice 1-4,5,8,10,12-15
Homework:
Video and Notes 3.1 B(1) - Characteristics of Periodic Functions - Examples 7-10
Homework: Video and Notes 3.1 B(2) - Characteristics of Periodic Functions - Examples 11-12
Young Alumni College Fair
Homework: Video and Notes 3.2 A(1) - Trig Review - Standard Position, Co-terminal angles - Examples 1-3 - Use Cleary Notes 2024-25
Homework:
Video and Notes 3.2 A(2) - Central angles and Radian measure - Examples 4-5
Wed
HR
1/7
Classwork: Review Practice, Review Videos, Begin Unit 3.1 (B) practice 2,3,5, FRQ
Classwork: Review Practice, Review Videos, Begin Unit 3.2 (A) practice 1-7, 8-20 even, 20,22
Homework: Video and Notes 3.2 B - Connecting SOH-CAH-TOA to Unit Circle - Examples 6-12 - Mr. Cleary Notes
Thu
HR
1/8
Fri
HR
1/9
Classwork: Review Practice, Review Videos, Begin Unit 3.2 (B) practice 1-25 all
Homework: Video and Notes 3.3 A - Finding Exact Trig Values - Examples 1-4
No Class - Cross Country Clinic



Mon
HR
1/12
Classwork: Review Practice, Review Videos, Begin Unit 3.3 (A) practice 1,3,4,5,7-16 all
Homework: Video and Notes 3.3 B - Trig Functions of any angle and finding coordinates given and angle - Examples 5-10
Tue
Flex
1/13
Classwork: Review Practice, Review Videos, Begin Unit 3.3 (B) practice 2,4-12 all
Homework: Prep for Quiz - Practice MC questions on AP Classroom
Homework: Video and Notes 3.4 (A) - Graphing sine curves - Examples 1-6
Wed
HR
1/14
Classwork: Test 3.1-3.3
Classwork: Begin Unit 3.4 (A) practice 5,9,7,11,1,3
Homework: Video and Notes 3.4 (B) -  Graphing cosine curves - Examples 6-12
Thu
Flex
1/15
Fri
HR
1/16
Classwork: Review Practice, Review Videos, Begin Unit 3.4 (B) practice 5-11all, 2,4
 
Homework: Video and Notes 3.5 (A) - Characteristics of Sinusoidal (Sin & Cos) functions - Examples 1-7



Mon
1/19
No Classes - MLK Holiday - Professional Day
Tue
Flex
1/20
Classwork: Review Practice, Review Videos, Review Test, Begin Unit 3.5 (A) practice 5-8,9,11,13,16,17-20
Homework
: Video and Notes 3.5 B(1) - Sinusoidal Functions - Period, Frequency, Concavity, Inflection Points - Examples 8-10
Homework: Video and Notes 3.5 B(2) - Application of Sinusoidal functions - Example 11

Homework: Video and Notes 3.6 (A) - Transformations of Sine and Cosine - Examples 1-5
Course Selection Begins

Wed
HR
1/21
Classwork: Review Practice, Review Videos
Classwork:
Course Evaluation Survey
Classwork: Begin Unit 3.5 (B) practice 1,2,5-8 - No Calc, 12,13,16,17
Classwork: Review Practice, Begin Unit 3.6 (A) practice 1,2,5-8
Homework:Video and Notes 3.6 B(1) - More graphing of Sinusoidal Functions - Examples 6-9
Homework: Video and Notes 3.6 B(2) - Writing Sinusoidal Functions - Examples 10-12
Thu
Flex
1/22
Fri
HR
1/23
No Classes - Cold Day 2026
Mr. Simanek Computer Science Course Selection Video



Mon
Special
1/26
Classwork: Review Practice, Review Videos, Begin Unit 3.6 (B) practice 13-16,5-10,2,4
Homework: Video and Notes 3.7 A(1) - Sinusoidal Function Context and Data Modeling - Examples 1-2
Homework: Video and Notes 3.7 A(2) - Simple Harmonic Motion and Data Modeling - Examples 3-6

All-School Liturgy - Catholic Schools Week/Mass for Life

Tue
Flex
1/27
Classwork: Review Practice, Review Videos, Begin Unit 3.7 (A) practice 1,2,3,5, FRQ
Homework: Video and Notes 3.7 B(1) - More Sinusoidal Function Context and Data Modeling - Examples 7-9
Homework: Video and Notes 3.7 B(2) - Determine and interpret a Sinusoidal Function from Data - Example 10
Wed
HR
1/28
Classwork: Review Practice, Review Videos, Begin Unit 3.7 (B) practice 1,3,5,7
Classwork: Review 3.7 (B)
Homework: Unit 3.1-3.7 Review Problems - 1-12all, 14,16-19,21,22,24
Thu
Flex
1/29
Fri
HR
1/30
Classwork: Review HW, Test Prep
Homework: AP Classroom Test Prep MC
Homework: AP Classroom Test Prep - FRQ
Homework
: Prepare for Unit 3.7 Test



Mon
HR
2/2
Classwork: Unit 3.7 Test
Homework
: Video and Notes 3.8 (A) - Graphing the Tangent Function - Examples 1-4 (Older Mr. Cleary Video)
Mid-Quarter Warnings Due
Tue
Adv
2/3
Classwork: Review Practice, Review Videos, Begin Unit 3.8 (A) practice 3,4,5,7,8,9
Homework: Video and Notes 3.8 B(1) - Transformations of the Tangent Function - Examples 5-6
Homework: Video and Notes 3.8 B(2) - Tangent Transformations, Concavity, and Writing Tan Functions from graph - Examples 7-10
Wed
HR
2/4
Classwork: Review Practice, Review Videos, Begin Unit 3.8 (B) practice 1-7 all (No Calculator)
Homework: Video and Notes 3.9 (A) - Inverse of Sine, Cosine and Tangent Functions - (Mr. Cleary Notes)
Thu
2/5
No Classes - Freshman Retreat/Professional Day
Fri
2/6
No Classes - Freshman Retreat



Mon
HR
2/9
Classwork: Reminder of school/classroom rules, Review Practice, Review Videos, Review 3.7 test
Classwork: Begin Unit 3.9 (A) practice 1-20 all
Homework: Video and Notes 3.9 B(1) - Inverse Trig Functions & Composite Trig Expressions - Examples 8-12
Tue
Flex
2/10
Classwork: Review Practice, Review Videos, Begin Unit 3.9 (B) practice 1-18 all
Homework: Video and Notes 3.10 (A & B) - Solving Trig Equations - Examples 1-9 - Mr. Cleary Notes - first 9:30 of Video
Wed
HR
2/11
Classwork: Review Practice, Review Videos
Classwork:
Unit 3.9 (B) practice 19,20,22,23,FRQ
Classwork: Review Practice 3.9 B
Classwork: Begin Unit 3.10 (A) practice 2,4,6,7,8,9-12
Homework: Unit 3.10 (B) practice 1-12 all
Thu
Flex
2/12
Fri
Flex
2/13
Classwork: Review 3.10A and 3.10 B
Classwork: Introduce 3.10 C - Example 10
Classwork: Introduce Solving Trig Equations and Inequalities Using Desmos - Examples 11, 12, 13
Homework:
Begin Unit 3.10 (C) practice 1,4,5,6,7,9,12 (Use Desmos for all of these)
Homework: Prepare for Quest
Homework: Video and Notes 3.10 C(1) - Solving Trig Inequalities - Examples 10-14
Homework: Video and Notes 3.10 C(2) - Solving Trig Inequalities - Example 15



Mon
HR
2/16
Classwork: Quest 3.6-3.10 B
Homework: Video and Notes 3.11 A(1) - Graphing Secant and Cosecant Functions - Examples 1-2
Homework: Video and Notes 3.11 A(2) - Graphing Cotangent Functions - Examples 3-4
Tue
Flex
2/17
Classwork: Review Videos, Begin Unit 3.11 (A) practice 7,8,10,11,12,14,15,16
Homework: Video and Notes 3.11 B(1) - The SEC, CSC, COT functions - Examples 5-8
Homework: Video and Notes 3.11 B(2) - Graphing Secant and Cosecant with Phase Shifts
Wed
Special
2/18
Classwork: Review Practice, Review Videos, Begin Unit 3.11 (B) practice 1-24 all
Homework: Video and Notes 3.12 A(1) - Intro to Verifying Trig Identities - Examples 1-4
Homework: Video and Notes 3.12 A(2) - Verify Trig Identities with Common Denominator and Conjugates - Examples 5-6

All School Liturgy - Ash Wednesday Mass
Thu
2/19
No Classes - St. Ignatius Employee Retreat
Fri 2/20
No Classes - St. Ignatius Employee Retreat



Mon
HR
2/23
Classwork: Review Practice, Review Videos, Begin Unit 3.12 (A) practice 2,4,6,7,8,9,11-14
Homework: Video and Notes 3.12 B(1) - Sum/Difference Formulas and Double Angle Formulas - Examples 7-10
Homework: Video and Notes 3.12 B(2) - Sum/Difference Formulas and Double Angle Formula - Examples 11-12
Tue
Flex
2/24
Classwork: Review Practice, Review Videos, Begin Unit 3.12 (B) practice 2,4-10,15,18,19
Homework: Video and Notes 3.12 C - Solve Trig Equations Using Identities - Examples 13-18

Wed
HR
2/25
Classwork: Review Practice, Review Videos, Begin Unit 3.12 (C) practice 1,2,3,5,7,9
Classwork: Review 3.12 C practice problems
Classwork: Test Prep Worksheet - Problems, 3,4,6,8,10,11,12,14,19,20,21
Classwork: 
Trig Identities Worksheet: Problems 1-5,7,8,9,12,13,17,19,21
Homework: Prep for Quiz
Thu
Flex
2/26
Fri
Assembly
2/27
Classwork: Review Test Prep Worksheets
Homework: Prepare for Test
 
Senior Shared Life Prayer Service



Mon
HR
3/2
Classwork: Test 3.8-3.12
Homework:Video and Notes 3.13 A(1) - Intro to Polar Coordinate System - Examples 1-2
Homework: Video and Notes 3.13 A(2) - Converting between Rectangular and Polar Forms - Examples 3-4\
Tue
Flex
3/3
Classwork: Review Practice, Review Videos, Begin Unit 3.13 (A) practice 1-18 all
Homework: Video and Notes - Introduction to Equation of Circles (Sec 9.1 (1) - Cleary notes)
Homework: Video and Notes 3.13 A(3) - Converting between Rectangular and Polar Forms - Examples 5-7
Quarter Exam Day - English & Social Studies
Wed
Flex
3/4
Classwork: Review Practice, Review Videos, Begin Unit 3.13 A(2) practice 19-26 all
Homework: Video and Notes 3.13 B(1) - The Complex Plane - Examples 8-11
Homework: Video and Notes 3.13 B(2) - Polar Form of a Complex Number - Examples 12-15
Homework: Video and Notes 3.13 B(3) - Product and Quotient of Complex Numbers & DeMoivre's Theorem- Examples 16-18

Quarter Exam Day - Science & World Languages
Thu
Flex
3/5
Classwork: Review Practice, Review Videos, Begin Unit 3.13 (B) practice 3-6,10,11,13,14,17,18
Homework: Video and Notes 3.14 (A) - Graphing Polar Equations (circles) and Tests for Symmetry  - Cleary notes 9.6(1)

Quarter Exam Day - Math, Theology, Fine Arts
Fri
3/6
No Classes - Grading Day



Mon
HR
3/9
F & G Periods - No Class - (out for a funeral) - Complete the materiel below due Thursday.
Classwork:
Review Practice, Review Videos, Begin Unit 3.14 (A) practice 1,2,9
Homework:
Video and Notes 3.14 (B) Graphing Rose Curves, Cardioids, and Limacons - Cleary notes 9.6(2)
Tue
3/10
No Classes - ACT Testing & Sophomore Wellness Day
Wed
HR
3/11
No AP Precalc+ Class - College and Career Day
Thu
3/12
Classwork: Review Practice, Begin Unit 3.14 (A) practice 3,5,7,8,10
Classwork: Review Practice, Begin Unit 3.14 (B) practice 1-4,7-9
Homework: Finish Classwork,
Special Schedule - Early Release - Conferences 4pm - 7pm

Fri
3/13
No Classes - Parent Teacher Conferences





Homework: Video and Notes 3.15 (A) - Analyzing Polar Graphs - Examples 1-2
Homework: Video and Notes 3.15 (A) - Testing for pos/negative, increasing/decreasing - Examples 3-5
Not in 2025 and 2026
Mon
HR
3/16
Classwork: Review Practice, Review 3.14(A&B), Review 3.8-3.12 Test
Homework: Unit 3 Review Worksheet
Unit 3.6(2) - #7,10, Unit 3.1-3.7 Review - #21,22, Unit 3.8(2) - #3, Unit 3.10(2) - #2,3, Unit 3.11(1) - #10,14, Unit 3.11 (2) - #21,22, Unit 3.13(1) - #21,22,24, Unit 3.13(2) - #8,12,15(answer in standard form), Unit 3.1-3.15 Review - #11,22,23,31-33(1. Identify the curve, 2. ID start point, 3. determine the length, 4. Sketch, 5. ID symmetry)
Tue
Flex
3/17
Classwork: Review HW, Test Prep
Homework:
Prepare for Unit 3 Test
Wed
HR
3/18
Classwork: Unit 3 Test - Workouts
Classwork: Unit 3 Test - Multiple Choice
Homework:
Video and Notes 4.6 (A) - Conic Sections - Parabola - (Cleary Notes 9.1(2))
Thu
Flex
3/19
Fri
Assembly
3/20
Classwork: Review Practice, Review Videos, Begin Unit 4.6 (A) practice 1-6 all,8,10 -12,15
Homework: Video and Notes 4.6 (B) - Conic Sections - Ellipse - (Cleary Notes 9.2(1))
Homework: Video and Notes 4.6 (B) - Conic Sections - Eccentricity of Ellipse - (Cleary Notes 9.2(2))



Mon
HR
3/23
Classwork: Review Practice, Review Videos, Begin Unit 4.6 (B) practice 1-6 all,8,9,10,13,16
Homework: Video and Notes 4.6 (C) - Conic Sections - Intro to Sketching Hyperbola - (Cleary Notes 9.3(1))
Homework: Video and Notes 4.6 (C) - Conic Sections - Asymptotes and Eccentricity of Hyperbola- Examples (Cleary Notes 9.3(2))
Tue
Adv
3/24
Classwork: Review Practice, Review Videos, Begin Unit 4.6 (C) practice 1-6 all, 8,9,12,
Classwork: Pass out review packet
Homework: Unit 4.6 (C) practice 7,14,16,18
Wed
HR
3/25
Classwork: Review Survey, Review Unit 3 Test, Review Practice,
Classwork: Conics Review Packet 1-12 all
Classwork: Conics Quiz Format, Conics Review Packet Key
Homework: Prep for Quiz
 
Thu
Flex
3/26
Fri
3/27
No Classes - Professional Day (Auction)



Mon
HR
3/30
Classwork: Conics Quiz
Homework: Video and Notes 4.5 (A) - Implicitly and Explicitly Defined Functions - Examples 1-5
Tue
Flex
3/31
Classwork: Review Practice, Review Videos, Begin Unit 4.5 (A) practice 1-4 all, 7,9,10,12,13,14
Homework: Video and Notes 4.5 (B) - Implicitly Defined Functions and Rates of Change - Examples 6-10
Wed
HR
4/1
Classwork: Review Practice, Review Videos, Begin Unit 4.5 (B) practice 1,3,6,8,10,12
Homework: Video and Notes 4.1 (A) - Intro to Parametric Functions - (Cleary Notes 9.4(1))
Homework: Video and Notes 4.1 (A) - Eliminating the Parameter - (Cleary Notes 9.4(2))
Thu
4/2
No Classes
Fri
4/3
No Classes


Easter Break - 4/2-4/12 - Enjoy your break!


2026 OK to here


Classwork: Review Practice, Review Videos, Begin Unit 4.1 (A) practice 1-4 all, 5,6,7,9,12-14
Homework: Video and Notes 4.1 (B) - Describing Parametric Functions - Examples 6-9


Classwork: Review Practice, Review Videos, Begin Unit 4.1 (B) practice 2,3,4,5,7,9,12,13,15
Homework: Video and Notes 4.2 (A) - Parametric Word Problems - (Cleary Notes 9.4(3))
Mon
HR
4/13
Classwork: Review Practice, Review Videos, Begin Unit 4.2 (A) practice 2,3,5,6
Homework: Video and Notes 4.2 (B) - More Parametric Word Problems - (Cleary Notes 9.4(4))
Mid-Quarter Warnings Due?
Tue
Flex
4/14
Classwork: Review Practice, Review Videos, Begin Unit 4.2 (B) practice 1,3,4,5
Homework: Parametric Equation Word Problems Unit  4.2 (A) #'s 4,7  Unit 4.2 (B) - #6, Example 4 page 15?
Wed
HR
4/15
Classwork: Review Word Problems, Quiz Prep
Homework: Quiz Prep 4.5, 4.1-4.2
Classwork: Test 4.5, 4.1-4.2
Homework:
Video - Description of a Vector
Homework: Video and Notes 4.8 (B) - Introduction to Vectors - Cleary Notes 6.3 (1)
Homework:
Video and Notes 4.8 (B) - Vector Operations - Examples 5-10 - Cleary Notes 6.3 (2)
All School Liturgy - Holy Thursday Mass
Thu
Flex
4/16
Fri
HR
4/17
Classwork: No Class



Mon
HR
4/20
Classwork: No Class
Tue
Flex
4/21
Classwork: Review Practice, Review Videos, Begin Unit 4.8 (A) practice 2,4,5,8,10-13
Homework: Video and Notes 4.8 (C) - Unit Vectors  - Cleary Notes 6.3 (3)
Homework: Video and Notes 4.8 (C) - Dot Products  - Cleary Notes 6.4 (1)
Homework: Video and Notes 4.8 (C) - Finding the angle between two Vectors - Examples 17-20 - Cleary Notes 6.4 (2)
Wed
HR
4/22
Classwork: Review Practice, Review Videos, Begin Unit 4.8 (B) practice 1,3,4,5,6-11,12,14,16,18, (20&22 - No calc)
Homework: Video and Notes 4.8 (C) - The Laws of Sines - Cleary Notes 6.1(1)
Homework: Video and Notes - The Law of Sines - Ambiguous Case - Cleary Notes 6.1 (2)
Homework: Video and Notes - The Law of Cosines - Cleary Notes 6.2 (1) 
Classwork: Review Practice, Review Videos, Begin Unit 4.8 (C) practice 2-5,7-9,12-17,20
Homework: Finish Classwork

Thu
Flex
4/23
Fri
Flex
4/24
Homework: Law of Sines and Cosines Practice



Mon
HR

4/27

Homework:
Video and Notes 4.10 (A) - Introduction to Matrices - Cleary Notes 7.4/5 (1)
Homework: Video and Notes 4.10 (A) - Matrix Multiplication - Cleary Notes 7.4/5 (2)
Tue
Flex
4/28
Classwork: Review Practice, Review Videos, Begin Unit 4.10 (A) practice 1,4-7,9.10,13
Homework: Video and Notes 4.10 A(3) - Application of Matrices - Example 6
Wed
HR
4/29
Classwork: Review Practice, Review Video, Review Worksheet, Review Quizzes and Tests 
Homework:
Begin Unit 4.10 (A) practice 11,12,14,15 Classwork: Review classwork, Quiz Prep
Homework: Quiz Prep
Vectors/Laws of Sines & Cosines/Matrices
Thu
Flex
4/30
Fri
HR
5/1
Classwork: Quiz - Vectors/Laws of Sines & Cosines/Matrices



Prom Weekend - -
Mon
HR
5/4
Classwork/Homework: Exam Prep - Polynomial Functions and Zeros - Daily Video 1.5 (2)
Classwork/Homework: Exam Prep - Polynomial Functions and End Behavior - Daily Video 1.6 (1)
Classwork/Homework: Exam Prep - Rational Functions and End Behavior - Daily Video 1.7 (1)
Classwork/Homework: Exam Prep - More Rational Functions and End Behavior - Daily Video 1.7 (2)
Classwork/Homework: Exam Prep - Holes in Rational Functions - Daily Video - 1.10 (1)
Homework: Graphing Polynomial Functions Worksheet
Homework: Graphing Rational Functions Worksheet
AM - AP Biology (15), PM - AP Microeconomics (25)
Tue
Flex
5/5
Classwork: Exam Prep - Unit 1 Part A FRQ Calc- AP Classroom
Classwork: Exam Prep - Unit 1 Part B FRQ - No Calc - AP Classroom
Homework
: Exam Prep - Unit 1 MC Progress Check A - 18 MC questions on AP Classroom
Homework:
Unit 2 Review Video and sample questions
AM - AP Chemistry (19) and AP Human Geography (5)
Wed
HR
5/6
Classwork: AP Exam Prep - Unit 2 MC Progress Check A - 24 MC Questions on AP Classroom
Homework: Finish Classwork
AM - AP English Literature and AP African Studies (1), PM - AP Computer Science (3)
Classwork: Things to know cold - Jean Adams, AP Scoring, Bluebook
Classwork:
Unit 2 Progress Check FRQ A - AP Classroom
Homework: Unit 3 Review Video(s) - AP Classroom
AP - AP Statistics, PM - AP World History (1)
Thu
Flex
5/7
Fri
Flex
5/8
Classwork: Unit 3 Progress Check 3 FRQ A - AP Classroom
Homework: Unit 3 Progress Check MC A - AP Classroom
Homework: Video - Units 2 & 3 FRQ #4 - Symbolic Manipulations
AM - AP US History (19), PM - AP Macroeconomics (25), AP 2-D Art and Design (1)



Mon
HR
5/11
Classwork: Review, last minute AP Prep
Homework:
AM - AB and BC Calculus
Tue
Flex
5/12
Students not taking the AP test should report to room 332 during their scheduled class period.
AM - AP Precalculus (58)
Wed
Special
5/13
Classwork: Review Vectors and Matrices Test, Begin FRQ 1
Homework: Finish FRQ 1, Finish FRQ 2
AM - AP English Language (8), PM - AP Physics C (Mechanics)
Thu
Special
5/14
Classwork: Review FRQ 1 & 2, Begin FRQ 3
Homework: Finish FRQ 3, Finish FRQ 4
AM - AP Spanish Language (4), PM AP Physics C (Elect & Magnetism)
Fri
Assembly
5/15
Classwork: Review FRQ 3 & 4, Survey?, Any last minute questions.
Homework: Prepare for final
AM - AP Physics (8) and AP Spanish Lit, PM AP - Psychology (12)



Mon
5/18
Exam Review Day
Tue
5/19
Semester Exams - Social Studies and English
Wed
5/20
Semester Exams - Science and World Language
Thu
5/21
Semester Exams - Math, Theology, Fine Arts
Fri
5/22



Enjoy your Summer Break!


Homework: Video and Notes 4.10 (B) - Matrix Multiplication - a deeper dive - Examples 9-10
Homework: Video and Notes 4.10 (B) - Matrix Operations on the TI-84 - Examples 11-13 (Cleary Notes 7.6 (2))


Classwork: Show 4.10 B - Example 10 in class
Classwork: Review Practice, Review Videos, Review Calc Operations for Matrices (Mult, Inverse, Determinant), Begin Unit 4.10 (B) practice 1,4,7,8,9,10,14,15
Homework: Video and Notes 4.11 A(1) - Identity and Inverse Matrix - Example 1- Cleary Notes 7.6 (1) - 1st 6:47 of video
Homework: Video and Notes - Matrix Row operations and Solving a System of Equations - Cleary Notes 4.11 A (2)
Homework: Video Notes 4.11 A(3)- Inverse of Matrix using Row Operations - Examples 2-4


Classwork: Review Practice, Review Videos, Begin Unit 4.11 (A) practice 1,3,6,9,10,11
Homework: Video and Notes 4.11 B(1) - Finding the Inverse of a Matrix using the Determinant - Cleary Notes 7.6 (1) - Start at 9:02
Homework: Video and Notes 4.11 B(2) - Finding the Area of a Parallelogram - Examples 8-9


Classwork: Review Practice, Review Videos, Begin Unit 4.11 (B) practice 3-8,10,11,14,16,18