Get Ready for Precalculus : Free Course

About this course

Study Get Ready for Precalculus in this free English video course from Khan Academy. The classroom preserves all 144 published source recordings, totaling approximately 13h 57m, with their original lesson titles and sequence. The selected curriculum focuses on functions, rates of change, accumulation and mathematical argument. Use the videos to follow an explanation, examine an example and develop a study output you can check independently. The course title describes this recorded subject or learning track; your study can extend beyond watching through the practical activities below.

Course at a glance

What you’ll learn

• Follow the explanation and worked reasoning in “Addition rule for probability”, then describe the main idea in your own words.
• Follow the explanation and worked reasoning in “Radius and center for a circle equation in standard form”, then describe the main idea in your own words.
• Follow the explanation and worked reasoning in “Dilating shapes: shrinking”, then describe the main idea in your own words.
• Follow the explanation and worked reasoning in “Understanding function inverses example”, then describe the main idea in your own words.
• Connect examples across Get Ready for Precalculus by identifying the terms, assumptions and methods they use.
• Create a small independent practice output and check it against the relevant teaching explanation.

Skills you’ll gain

• Function analysis
• Calculus reasoning
• Mathematical notation
• Result verification

Course Overview

The source curriculum is presented as a complete recorded video edition of Get Ready for Precalculus . Representative lessons include “Addition rule for probability”, “Dilating shapes: shrinking” and “Introduction to i and imaginary numbers”. These recordings give concrete examples to revisit while building functions, rates of change, accumulation and mathematical argument. Their place in the lesson list is preserved, so you can return to a particular explanation without losing its source position. Introductions, demonstrations, examples, reviews and compilations remain included whenever they appear in the original playlist. Reading a lesson title is useful for locating a topic; working through its reasoning and checking a practice attempt is what makes the recording valuable for learning.

How to study the course

• Videos 1–36: this part of the source list includes “Addition rule for probability” through “Geometric series introduction”. Identify the function, variable and conditions. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
• Videos 37–72: this part of the source list includes “Evaluating sequences in recursive form” through “Modeling temperature through the day”. Connect the method to the meaning of the problem. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
• Videos 73–108: this part of the source list includes “Determining the equation of a trig function” through “Dividing quadratics by linear expressions with remainders: missing x-term”. Rework a demonstration with a changed parameter. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.
• Videos 109–144: this part of the source list includes “Dividing quadratics by linear expressions with remainders” through “Introduction to i and imaginary numbers”. Check the result and explain its interpretation. Keep a brief working note, revisit an unclear explanation and test one example before moving to another part of the material.

Who is this for?

This course suits learners with algebra and trigonometry preparation who want the specific calculus topic in the title. It also provides a recorded reference for revisiting a topic after an earlier lesson or study attempt. Choose examples appropriate to your background and allow time to work through the method instead of judging understanding only by how familiar the terminology sounds.

Before you start

Comfort manipulating algebraic expressions and interpreting functions is important. Review the prerequisite calculus stated by a lesson before using an advanced technique.

Put the lessons into practice

Select a representative function or problem from the recordings. Write the conditions, reproduce the method and explain the role of each step. Try another example with a different parameter or interval. Check a symbolic result using a simpler case, a sketch or a numerical comparison when appropriate. Keep track of domains, units and boundary conditions. Finish by explaining what the answer means in the original problem and identify a case in which the same procedure would require extra care.

This optional study activity is provided by WikiFree for independent practice. Keep your working notes and use the relevant classroom recording to check a step, definition or interpretation. It is not an instructor-marked assignment.

Certificate / Assessment

Watching the public videos and using WikiFree completion tracking does not award a certificate, academic credit, an examination voucher or instructor assessment. Use your practice output to review what you can explain and repeat independently. The recorded lessons provide study material; completion tracking records your progress through that material.

Frequently asked questions

Provider: Khan Academy. Videos play from the Khan Academy channel on YouTube.