3Blue1Brown Essence of Calculus
Use before formal derivative and integral drills so the ideas are not just procedures.
A complete AP Calculus AB sequence centered on limits, derivatives, integrals, differential equations, applications, multiple representations, and written justification.
A complete AP Calculus AB sequence centered on limits, derivatives, integrals, differential equations, applications, multiple representations, and written justification.
This track is organized as a mastery loop: source study, sequenced checks, Khan report evidence, then tutor handoff only when the data shows a real stuck point.
Use linked OER and companion sources before attempting checks.
Move through numbered PeerTutor problems without skipping failed gates.
Enter Khan report evidence and let the adaptive plan rank repair units.
Bring exact misses, notes, and one sharp question to a tutor.
The bank is intentionally mixed across facets and difficulty so high scores cannot come from one narrow question style.
Use these linked courses for video instruction and mastery practice, then return here for PeerTutor original checks and tutor help on the exact unit that got stuck.
External video content is linked or embedded through provider-hosted players, not copied. PeerTutor practice is original and cites each source path separately.
Watch the strongest public video path inside PeerTutor, then use the unit checks below to prove the student can actually do the work.
Use before formal derivative and integral drills so the ideas are not just procedures.
Worked examples across algebra, trigonometry, calculus, chemistry, physics, and test prep.
Khan Academy progress has to be entered from the student or tutor report. Khan does not provide a supported public progress API, so this mirror stores unit status locally and uses it to target PeerTutor checks.
Khan Academy does not provide a supported public progress API or external API keys. PeerTutor stores student-provided report evidence and maps it to original practice instead.
0 repair units and 5 practice units need attention before extension.
No Khan mirror data yet; this is a normal practice candidate, not a proven weakness.
Complete 12 sequenced checks and advance only after misses are corrected.
No Khan mirror data yet; this is a normal practice candidate, not a proven weakness.
Complete 12 sequenced checks and advance only after misses are corrected.
No Khan mirror data yet; this is a normal practice candidate, not a proven weakness.
Complete 12 sequenced checks and advance only after misses are corrected.
No Khan mirror data yet; this is a normal practice candidate, not a proven weakness.
Complete 12 sequenced checks and advance only after misses are corrected.
No Khan mirror data yet; this is a normal practice candidate, not a proven weakness.
Complete 12 sequenced checks and advance only after misses are corrected.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Limits and continuity", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Differentiation: definition and fundamental properties", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Differentiation: composite, implicit, and inverse functions", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Contextual applications of differentiation", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Analytical applications of differentiation", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Integration and accumulation of change", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Differential equations", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Rebuild the unit: do 12 PeerTutor checks, log every miss, then ask a tutor from the error log.
Khan evidence to mirror: percent/mastery for "Applications of integration and AP synthesis", missed skill, last activity date, and the next Khan item assigned by the teacher report.
Built for independent progress first, then tutor support where the student gets stuck.
Practice: Complete a mixed limit set and justify one continuity or existence claim in words.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Estimate and compute limits from graphs, tables, and formulas.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Complete a mixed limit set and justify one continuity or existence claim in words.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Use continuity, asymptotes, the Squeeze Theorem, and the Intermediate Value Theorem.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Limits and continuity practice set has 12 questions. If 5 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Limits and continuity"?
Which practice artifact should you produce for "Limits and continuity" before asking a tutor for help?
Which target best proves readiness for "Limits and continuity"?
Which second target belongs to "Limits and continuity"?
Practice: Derive one derivative from the limit definition, then connect it to a graph and contextual rate.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Use the derivative definition as an instantaneous rate and local linear model.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Derive one derivative from the limit definition, then connect it to a graph and contextual rate.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Differentiate elementary functions with product and quotient rules.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Differentiation: definition and fundamental properties practice set has 13 questions. If 6 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Differentiation: definition and fundamental properties"?
Which practice artifact should you produce for "Differentiation: definition and fundamental properties" before asking a tutor for help?
Which target best proves readiness for "Differentiation: definition and fundamental properties"?
Which second target belongs to "Differentiation: definition and fundamental properties"?
Practice: Solve a mixed differentiation set and annotate which rule controls every nontrivial step.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Apply chain, implicit, and inverse-function differentiation.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Solve a mixed differentiation set and annotate which rule controls every nontrivial step.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Use higher derivatives and select efficient rule combinations.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Differentiation: composite, implicit, and inverse functions practice set has 14 questions. If 7 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Differentiation: composite, implicit, and inverse functions"?
Which practice artifact should you produce for "Differentiation: composite, implicit, and inverse functions" before asking a tutor for help?
Which target best proves readiness for "Differentiation: composite, implicit, and inverse functions"?
Which second target belongs to "Differentiation: composite, implicit, and inverse functions"?
Practice: Write a complete related-rates solution with diagram, variables, equation, derivative, substitution, and conclusion.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Model motion, related rates, and local linearity.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Write a complete related-rates solution with diagram, variables, equation, derivative, substitution, and conclusion.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Interpret derivative values and units in context.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Contextual applications of differentiation practice set has 15 questions. If 8 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Contextual applications of differentiation"?
Which practice artifact should you produce for "Contextual applications of differentiation" before asking a tutor for help?
Which target best proves readiness for "Contextual applications of differentiation"?
Which second target belongs to "Contextual applications of differentiation"?
Practice: Analyze an unfamiliar function from derivative evidence and solve one constrained optimization problem.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Use extrema, Mean Value Theorem, derivative tests, concavity, and optimization.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Analyze an unfamiliar function from derivative evidence and solve one constrained optimization problem.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Connect graphs of a function and its derivatives.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Analytical applications of differentiation practice set has 16 questions. If 9 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Analytical applications of differentiation"?
Which practice artifact should you produce for "Analytical applications of differentiation" before asking a tutor for help?
Which target best proves readiness for "Analytical applications of differentiation"?
Which second target belongs to "Analytical applications of differentiation"?
Practice: Approximate an accumulation numerically, compute it exactly, and explain what the signed result means.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Use Riemann sums, definite integrals, accumulation functions, antiderivatives, and the Fundamental Theorem.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Approximate an accumulation numerically, compute it exactly, and explain what the signed result means.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Interpret integral values and units.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Integration and accumulation of change practice set has 17 questions. If 10 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Integration and accumulation of change"?
Which practice artifact should you produce for "Integration and accumulation of change" before asking a tutor for help?
Which target best proves readiness for "Integration and accumulation of change"?
Which second target belongs to "Integration and accumulation of change"?
Practice: Solve an initial-value problem and verify the solution in the original differential equation.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Use slope fields, separable equations, and initial conditions.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Solve an initial-value problem and verify the solution in the original differential equation.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Build and interpret exponential growth and decay models.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Differential equations practice set has 18 questions. If 11 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Differential equations"?
Which practice artifact should you produce for "Differential equations" before asking a tutor for help?
Which target best proves readiness for "Differential equations"?
Which second target belongs to "Differential equations"?
Practice: Complete a mixed free-response set, score it with an error log, and submit one corrected solution per error category.
Start with AP Calculus AB and AP/College Calculus AB. Take notes until you can explain: Use integrals for average value, net change, particle motion, area, and volume.
Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.
Produce the assignment artifact, then pass the application and analysis checks tied to: Complete a mixed free-response set, score it with an error log, and submit one corrected solution per error category.
Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.
Bring your attempted work, the exact missed check, and one question about: Combine calculator-active and calculator-free reasoning under AP timing.
Move in order: foundation, transfer, analysis, timed readiness, then metacognitive repair.
Start the next sequenced check: #1 Quantitative warmup. Do not jump ahead until this one is correct.
Weakest facet: Concept
A Applications of integration and AP synthesis practice set has 19 questions. If 12 are complete, how many remain?
Which habit best fits a serious math solution?
Which target best matches the AP Calculus AB unit "Applications of integration and AP synthesis"?
Which practice artifact should you produce for "Applications of integration and AP synthesis" before asking a tutor for help?
Which target best proves readiness for "Applications of integration and AP synthesis"?
Which second target belongs to "Applications of integration and AP synthesis"?
These are source links, not scraped course copies. Licenses differ, so the label tells students how each source is used.
View the full citation indexOfficial AP Calculus AB overview with eight units spanning limits, differentiation, integration, differential equations, and applications.
Free AP Calculus AB video and mastery path; linked as a companion course.
Three-volume calculus sequence covering single- and multivariable calculus.
Visual mathematics videos for calculus, linear algebra, probability, and deeper concept repair.
Useful worked-example videos; not open-source, so it is linked rather than republished.