Free Christian Curriculum Kindergarten through twelfth grade · free to download

Grade 11 · 15 units · 180 lessons · 1,800 questions

Algebra II

Algebra II in 180 lessons, carried through trigonometry, polar coordinates, and a first working look at calculus.

About this course

Algebra II here covers considerably more than the name usually promises. The year begins with function notation, domain and range, piecewise and absolute value functions, transformations, composition, inverses, and end behavior, then works through polynomials with synthetic division, the remainder and factor theorems, the rational root theorem, Descartes' rule of signs, and complex zeros. Rational functions get a full unit including complex fractions, holes, and slant asymptotes. Exponential and logarithmic work covers the number e, continuous compounding, doubling time and half-life, the properties of logarithms and change of base, and applications to decibels, pH, and the Richter scale. After that come systems and linear programming, matrices and determinants through Cramer's rule and row reduction, the conic sections with parametric equations, sequences and series with sigma notation and the binomial theorem, and a probability and statistics unit covering permutations and combinations, conditional probability, expected value, binomial probability, and the normal distribution.

The last third of the year is where the course reaches past a standard Algebra II, and it is fair to say the title understates it. Two full units cover trigonometry: radians and the unit circle, all six functions and their graphs with amplitude, period, and phase shift, inverse trigonometric functions, the laws of sines and cosines, then identities proved rather than merely listed, sum and difference and double and half-angle formulas, and solving trigonometric equations. A further unit covers the complex plane, polar form, De Moivre's theorem and nth roots, and polar graphing. The fourteenth unit is a genuine first pass at calculus: limits and limit laws, continuity, average and instantaneous rate of change, the derivative and the power rule, tangent lines, Riemann sums, and area under a curve. The final unit is review and mixed application.

The course runs 180 lessons in 15 units of 12, about 55 minutes each, one lesson per school day. A typical lesson states the definition or formula plainly, works three to five examples in full, lists the key facts, and closes with a KJV connection; roughly half the lessons add a short practice set of about three problems, usually without printed answers, so those are yours to check. Every lesson ends with a ten-question quiz that grades itself. Listed materials are a pencil, graph paper, a graphing calculator, and a Bible. Your student should arrive with Algebra I genuinely finished, with factoring, quadratics, exponent rules, radicals, and function notation automatic rather than half-remembered, and geometry beforehand helps with the conics and trigonometry. Freedom Homeschool also offers a general eleventh-grade math course, a broad precalculus survey that covers much of the same ground in functions, matrices, conics, sequences, trigonometry, statistics, and limits while adding number theory, proof, and inferential statistics. The two overlap heavily, so most families should choose one or the other as the year's math rather than assign both; this is the one to pick if your student has not yet had a full Algebra II.

What the course covers

What your student will be able to do

Scope and sequence

All 15 units of Algebra II for Grade 11, in the order they are taught.

Units in this course, in teaching order
UnitCoversLessonsQuestionsJump to lessons
Unit 1Functions and Their Graphs12120Lessons
Unit 2Polynomial Functions12120Lessons
Unit 3Rational Functions12120Lessons
Unit 4Exponential Functions12120Lessons
Unit 5Logarithmic Functions12120Lessons
Unit 6Systems of Equations and Inequalities12120Lessons
Unit 7Matrices and Determinants12120Lessons
Unit 8Conic Sections12120Lessons
Unit 9Sequences and Series12120Lessons
Unit 10Probability and Statistics12120Lessons
Unit 11Trigonometric Functions12120Lessons
Unit 12Trigonometric Identities and Equations12120Lessons
Unit 13Polar Coordinates and Complex Numbers12120Lessons
Unit 14Limits and Introduction to Calculus Concepts12120Lessons
Unit 15Comprehensive Review and Applications12120Lessons

Every lesson, by title

All 180 lesson titles are listed here — nothing is withheld until you download. Open a unit to read its contents.

Unit 1: Functions and Their Graphs 12 lessons
  1. 1Function Notation and Evaluation10 q
  2. 2Domain and Range10 q
  3. 3Piecewise Functions10 q
  4. 4Transformations of Functions10 q
  5. 5Composition of Functions10 q
  6. 6Inverse Functions10 q
  7. 7Graphing Functions Review10 q
  8. 8Absolute Value Functions10 q
  9. 9Greatest Integer (Step) Function10 q
  10. 10Even and Odd Functions10 q
  11. 11End Behavior of Functions10 q
  12. 12Unit 1 Review: Functions and Their Graphs10 q
Unit 2: Polynomial Functions 12 lessons
  1. 1Polynomial Operations10 q
  2. 2Synthetic Division10 q
  3. 3Remainder and Factor Theorems10 q
  4. 4Zeros and Multiplicity10 q
  5. 5Graphing Polynomial Functions10 q
  6. 6Rational Root Theorem10 q
  7. 7Fundamental Theorem of Algebra10 q
  8. 8Complex Zeros10 q
  9. 9Polynomial Inequalities10 q
  10. 10Descartes' Rule of Signs10 q
  11. 11Polynomial Modeling10 q
  12. 12Unit 2 Review: Polynomial Functions10 q
Unit 3: Rational Functions 12 lessons
  1. 1Rational Expressions10 q
  2. 2Simplifying Rational Expressions10 q
  3. 3Multiplying and Dividing Rational Expressions10 q
  4. 4Adding and Subtracting Rational Expressions10 q
  5. 5Complex Fractions10 q
  6. 6Solving Rational Equations10 q
  7. 7Rational Inequalities10 q
  8. 8Graphing Rational Functions and Asymptotes10 q
  9. 9Holes in Rational Functions10 q
  10. 10Slant Asymptotes10 q
  11. 11Applications of Rational Functions10 q
  12. 12Unit 3 Review: Rational Functions10 q
Unit 4: Exponential Functions 12 lessons
  1. 1Introduction to Exponential Functions10 q
  2. 2Exponential Growth and Decay10 q
  3. 3The Number e and Natural Exponential10 q
  4. 4Graphing Exponential Functions10 q
  5. 5Compound Interest10 q
  6. 6Continuous Compounding A = Pe^(rt)10 q
  7. 7Doubling Time10 q
  8. 8Half-Life10 q
  9. 9Solving Exponential Equations10 q
  10. 10Population and Radioactive Decay Applications10 q
  11. 11Exponential Modeling and Mixed Applications10 q
  12. 12Unit 4 Review: Exponential Functions10 q
Unit 5: Logarithmic Functions 12 lessons
  1. 1Definition of Logarithms10 q
  2. 2Common and Natural Logarithms10 q
  3. 3Properties of Logarithms10 q
  4. 4Change of Base Formula10 q
  5. 5Solving Logarithmic Equations10 q
  6. 6Graphing Logarithmic Functions10 q
  7. 7Inverse Relationship of Exponential and Log10 q
  8. 8Logarithmic Applications10 q
  9. 9Decibels (dB) — Sound Intensity10 q
  10. 10pH — Acidity Scale10 q
  11. 11Richter Scale — Earthquakes10 q
  12. 12Unit 5 Review: Logarithmic Functions10 q
Unit 6: Systems of Equations and Inequalities 12 lessons
  1. 1Linear Systems: Substitution10 q
  2. 2Linear Systems: Elimination10 q
  3. 3Three-Variable Systems10 q
  4. 4Matrix Representation of Systems10 q
  5. 5Graphing Systems of Inequalities10 q
  6. 6Linear Programming10 q
  7. 7Optimization Problems10 q
  8. 8Nonlinear Systems: Line and Circle10 q
  9. 9Nonlinear Systems: Parabola and Line10 q
  10. 10Applications of Systems10 q
  11. 11Inconsistent and Dependent Systems10 q
  12. 12Unit 6 Review: Systems of Equations and Inequalities10 q
Unit 7: Matrices and Determinants 12 lessons
  1. 1Introduction to Matrices10 q
  2. 2Matrix Addition and Subtraction10 q
  3. 3Scalar Multiplication10 q
  4. 4Matrix Multiplication10 q
  5. 5Properties of Matrix Operations10 q
  6. 6Determinants of 2×2 Matrices10 q
  7. 7Determinants of 3×3 Matrices10 q
  8. 8Inverse of a 2×2 Matrix10 q
  9. 9Solving Systems with Cramer's Rule10 q
  10. 10Row Reduction and RREF10 q
  11. 11Applications of Matrices10 q
  12. 12Unit 7 Review: Matrices and Determinants10 q
Unit 8: Conic Sections 12 lessons
  1. 1Introduction to Conic Sections10 q
  2. 2Circles10 q
  3. 3Parabolas: Vertex Form and Vertical Axis10 q
  4. 4Parabolas: Focus, Directrix, and Horizontal Axis10 q
  5. 5Ellipses10 q
  6. 6Hyperbolas10 q
  7. 7Identifying Conics and Completing the Square10 q
  8. 8Applications of Parabolas10 q
  9. 9Applications of Ellipses and Hyperbolas10 q
  10. 10Parametric Equations and Conic Sections10 q
  11. 11Conic Sections in Context: Mixed Practice10 q
  12. 12Unit 8 Review: Conic Sections10 q
Unit 9: Sequences and Series 12 lessons
  1. 1Sequences and Notation10 q
  2. 2Arithmetic Sequences10 q
  3. 3Geometric Sequences10 q
  4. 4Recursive Formulas10 q
  5. 5Arithmetic Series and Partial Sums10 q
  6. 6Geometric Series10 q
  7. 7Infinite Geometric Series10 q
  8. 8Sigma Notation10 q
  9. 9Pascal's Triangle and Its Patterns10 q
  10. 10Binomial Theorem10 q
  11. 11Applications of Sequences and Series10 q
  12. 12Unit 9 Review: Sequences and Series10 q
Unit 10: Probability and Statistics 12 lessons
  1. 1Fundamental Counting Principle10 q
  2. 2Permutations10 q
  3. 3Combinations10 q
  4. 4Basic Probability10 q
  5. 5Addition Rule for Probability10 q
  6. 6Conditional Probability and Multiplication Rule10 q
  7. 7Independent and Dependent Events10 q
  8. 8Discrete Probability Distributions and Expected Value10 q
  9. 9Binomial Probability10 q
  10. 10Measures of Central Tendency and Spread10 q
  11. 11Normal Distribution10 q
  12. 12Unit 10 Review: Probability and Statistics10 q
Unit 11: Trigonometric Functions 12 lessons
  1. 1Angles: Degrees and Radians10 q
  2. 2The Unit Circle10 q
  3. 3Sine, Cosine, and Tangent Functions10 q
  4. 4Graphing Sine and Cosine10 q
  5. 5Amplitude, Period, and Phase Shift10 q
  6. 6Tangent, Cotangent, Secant, and Cosecant Graphs10 q
  7. 7Inverse Trigonometric Functions10 q
  8. 8Right Triangle Applications10 q
  9. 9Law of Sines10 q
  10. 10Law of Cosines10 q
  11. 11Unit 11 Review: Trigonometric Functions10 q
  12. 12Area of Triangles and Heron's Formula10 q
Unit 12: Trigonometric Identities and Equations 12 lessons
  1. 1Pythagorean and Fundamental Identities10 q
  2. 2Proving Trigonometric Identities10 q
  3. 3Sum and Difference Formulas10 q
  4. 4Double-Angle and Half-Angle Formulas10 q
  5. 5Solving Trigonometric Equations10 q
  6. 6Product-to-Sum and Sum-to-Product Formulas10 q
  7. 7Advanced Trigonometric Equations10 q
  8. 8Cofunction and Even-Odd Trig Identities10 q
  9. 9Inverse Trigonometric Functions in Identities and Equations10 q
  10. 10Solving Trig Equations with Multiple Angles and Identities10 q
  11. 11Trigonometric Applications: Modeling Real-World Phenomena10 q
  12. 12Unit 12 Review: Trigonometric Identities and Equations10 q
Unit 13: Polar Coordinates and Complex Numbers 12 lessons
  1. 1The Complex Number System10 q
  2. 2Absolute Value and the Complex Plane10 q
  3. 3Polar Form of Complex Numbers10 q
  4. 4Multiplying and Dividing in Polar Form10 q
  5. 5De Moivre's Theorem and nth Roots10 q
  6. 6Introduction to Polar Coordinates10 q
  7. 7Graphing Polar Equations: Roses, Limaçons, and Spirals10 q
  8. 8Converting Polar and Rectangular Equations10 q
  9. 9Complex Numbers in Applications: Vectors and Circuits10 q
  10. 10Complex Conjugates and Factoring Polynomials Completely10 q
  11. 11Fundamental Theorem of Algebra10 q
  12. 12Unit 13 Review: Polar Coordinates and Complex Numbers10 q
Unit 14: Limits and Introduction to Calculus Concepts 12 lessons
  1. 1What Is a Limit?10 q
  2. 2Evaluating Limits Algebraically10 q
  3. 3Continuity10 q
  4. 4Average and Instantaneous Rate of Change10 q
  5. 5Introduction to the Derivative10 q
  6. 6Introduction to Integration and Area10 q
  7. 7One-Sided Limits, Limits at Infinity, and Asymptotes10 q
  8. 8Limit Laws and the Squeeze Theorem10 q
  9. 9Riemann Sums: Left, Right, and Midpoint Approximations10 q
  10. 10Derivative Applications: Velocity, Slope, and Optimization Preview10 q
  11. 11Integration Applications: Net Area and Accumulation10 q
  12. 12Unit 14 Review: Limits and Introduction to Calculus10 q
Unit 15: Comprehensive Review and Applications 12 lessons
  1. 1Review: Functions, Polynomials, and Rational Functions10 q
  2. 2Review: Exponential, Logarithmic, and System Functions10 q
  3. 3Review: Matrices, Conics, and Sequences10 q
  4. 4Review: Probability, Statistics, and Trigonometry10 q
  5. 5Review: Complex Numbers, Polar Coordinates, and Limits10 q
  6. 6Algebra II Applications: Real-World Problem Solving10 q
  7. 7Mixed Review A: Functions, Systems, and Matrices10 q
  8. 8Mixed Review B: Exponential, Log, Sequences, and Conics10 q
  9. 9Mixed Review C: Trigonometry and Identities10 q
  10. 10Mixed Review D: Probability, Statistics, Complex Numbers10 q
  11. 11Algebra II: Bridge to Precalculus and Calculus10 q
  12. 12Cumulative Assessment Preparation and Final Reflection10 q

One whole lesson, exactly as it comes

This is a real lesson taken from the middle of the course — the teaching text, the practice, the homework, and the first three quiz questions with their answers. It is not a marketing excerpt.

Unit 8: Conic Sections · Lesson 7

Identifying Conics and Completing the Square

55 minutesPencilGraph paperGraphing calculatorBible (KJV)

What this lesson is for

  • Students will understand identifying conics and completing the square
  • Students will see God's orderly design in advanced mathematics

Identifying Conics and Completing the Square

Identifying Conics from General Form Ax²+Cy²+Dx+Ey+F=0 (B=0)

  • Circle: A = C (both same nonzero value)
  • Ellipse: A ≠ C, both same sign
  • Parabola: A=0 or C=0 (exactly one squared term)
  • Hyperbola: A and C have opposite signs

Using the Discriminant (General Case with B)

For Ax²+Bxy+Cy²+Dx+Ey+F=0, compute B²-4AC:

  • B²-4AC < 0: ellipse (or circle)
  • B²-4AC = 0: parabola
  • B²-4AC > 0: hyperbola

Completing the Square — Full Process

To convert Ax²+Cy²+Dx+Ey+F=0 to standard form:

  1. Group x-terms and y-terms separately.
  2. Factor out the leading coefficient of each squared term.
  3. Complete the square inside each group.
  4. Adjust the constant side accordingly.

Worked Example 1 — Ellipse

4x²+9y²-16x+54y+61=0. Group: (4x²-16x) + (9y²+54y) = -61. Factor: 4(x²-4x) + 9(y²+6y) = -61. Complete: 4(x²-4x+4) + 9(y²+6y+9) = -61+16+81 = 36. 4(x-2)² + 9(y+3)² = 36 → (x-2)²/9 + (y+3)²/4 = 1. Ellipse, center (2,-3).

Worked Example 2 — Parabola

y²-4y+8x-4=0. (y²-4y+4) = -8x+4+4 → (y-2)²=-8(x-1). Parabola, vertex (1,2), opens left.

Worked Example 3 — Hyperbola

x²-4y²-6x+8y-11=0. (x²-6x+9)-4(y²-2y+1)=-11+9-4=-6. (x-3)²-4(y-1)²=-6 → not standard. Divide by -6: (y-1)²/(3/2)-(x-3)²/6=1. Vertical hyperbola.

Christian Connection

2 Timothy 2:15: "Study to shew thyself approved unto God, a workman that needeth not to be ashamed." Identifying conics requires careful study — checking signs, completing the square, matching patterns. A diligent student is not ashamed when asked to classify a conic. God rewards diligence in spiritual study the same way: know His Word, handle it rightly, and never be ashamed.

Homework

Complete assigned practice problems. Show all work.

The first three of this lesson's 10 questions

4x²+9y²+Dx+Ey+F=0 is a(n):

  1. hyperbola
  2. parabola
  3. circle
  4. ellipse
Show the answer

Answer: ellipse

x²+y²+Dx+Ey+F=0 (A=C) is a:

  1. ellipse
  2. parabola
  3. hyperbola
  4. circle
Show the answer

Answer: circle

x²-4y²+Dx+Ey+F=0 (opposite signs) is a:

  1. hyperbola
  2. circle
  3. ellipse
  4. parabola
Show the answer

Answer: hyperbola

Another 7 questions follow in the lesson itself, each one graded the moment it is answered.

What comes with the download

180 full lessons

Across 15 units, each with objectives, a teaching passage written to be read aloud, guided practice, and homework.

1,800 quiz questions

Graded the instant they are answered, each with the explanation of why that answer is right.

A gradebook that works

Every score kept, a running average maintained, and a breakdown unit by unit — all in the file itself, nothing sent anywhere.

Progress and attendance

Tick lessons off as they are finished, watch the completion bar fill, and mark days present, absent, or excused.

Report card and certificate

Both printable, with your student's name, the grades, and the dates already filled in.

Backup you control

Export every record to a file you keep, and read it back later. A lost browser cache cannot take the year with it.

An answer key

Hidden from the student by default, there for the parent marking the work.

Nothing that phones home

No ads, no affiliate links, no analytics, no fonts fetched from elsewhere. Unplug the network cable and every one of these files still works.

What you will need

Drawn from the materials named across all 180 lessons of this course. Most families already own most of it.

Download Algebra II — Grade 11

Free, and free of everything else. 17 files, 17.7 MB in total. No account, no email address, no payment. What you download carries no advertising, no affiliate links and no tracking of any kind.