D864 Secondary Physics Curriculum, catalog number EDUC 3225, is the three-CU undergraduate licensure course that consolidates secondary physics for the Praxis review and adds four strands most content courses never touch: the history of major discoveries, engineering innovation, research ethics and science communication. Candidates who treat it as one more physics course are surprised twice, first by how much of it is not calculation, and then by how heavily those other strands are represented.
Physics, plus three things physics courses skip
The content review is the part candidates expect. It runs across mechanics, energy, waves, electricity and magnetism, thermal physics and modern physics, and the assessment style is broad rather than deep: many topics, moderate difficulty, little tolerance for gaps. That shape has a direct study consequence, which is that leaving one area untouched costs more than being merely competent everywhere.
The history of discovery is the first of the unfamiliar strands and it is not trivia. Knowing how a result was established, what it displaced and what evidence settled it gives you the story that makes a classroom explanation land. It also carries an idea the standards care about: science as a human process of argument and revision rather than a finished body of facts handed down.
Engineering innovation and research ethics form the second and third. Secondary frameworks now put engineering design alongside scientific inquiry, so a physics teacher is expected to distinguish designing a solution under constraints from investigating a question. Ethics covers integrity in data, attribution, treatment of participants and the honest representation of uncertainty, all of which apply to student work as well as to research. Science communication is the fourth, and it is the one that makes the others usable: explaining a result to a non-specialist audience, without distortion, is the daily work of teaching.
Planning the work from your Course of Study
Open your Course of Study before deciding how to spend your time, because the scoring detail is there rather than in the catalog and it determines whether your effort should go into written work, into exam preparation or into both. Where written work is scored, each aspect stands alone with a 2 needed in each. Where a proctored objective assessment is involved, breadth of coverage matters more than depth in your favourite area.
The word budget, worked. Take six scored aspects and directions asking for about 1,900 words. Reserve 130 words to frame the topic and audience and 100 for a close, leaving roughly 1,670, or 275 an aspect. Then rebalance toward the strands candidates under-answer: the ethics aspect and the communication aspect each take an extra 65 words, taken from the content description aspects, which physics candidates can fill without effort.
The study budget, worked. Fifty hours for a three-CU course, and the allocation matters more here than in most. Spend two hours on a diagnostic across the physics domains, then twenty-five hours weighted to whichever two domains score worst, ten hours across history, engineering design and ethics, five hours practising explanations for a non-specialist audience, and the remaining eight on timed mixed practice. Candidates almost always want to spend the ethics and communication hours on more physics, and it is almost always the wrong trade.
A structure that fits a physics curriculum or communication deliverable
Where the directions supply headings, use them. Where they leave the arrangement open, this order covers what these aspects usually ask for.
| Section | What belongs in it | What earns the aspect |
|---|---|---|
| Context and audience | Who the explanation or curriculum is for and what they already hold | Everything after this is judged against the audience you named |
| Content coverage | The physics involved, at the level the audience needs | Scored for accuracy and for appropriate simplification |
| Historical development | How the idea was established and what it replaced | Scored where the nature of science is named; dates alone are not the point |
| Engineering connection | A design problem constrained by the physics, with the constraints stated | Scored for distinguishing design from inquiry |
| Ethics | Data integrity, attribution, safety and honest treatment of uncertainty | Scored for specifics tied to this context rather than general principles |
| Communication plan | Analogies, representations and where each one breaks down | Scored for naming the limits of an analogy, which most submissions omit |
| Assessment or check | How you would know the audience understood | Scored for evidence rather than for delivery |
| Sources | Standards, historical sources and any published guidance, APA | Scored where citation is named |
Every analogy you use should be followed by the sentence saying where it fails. Electric current is not really water in a pipe, and a candidate who says so is demonstrating exactly the professional judgment this course is built to assess.
Evidence craft for a physics teaching candidate
Four strands means four kinds of source, and the mix is itself assessable.
- Cite standards by code when you claim a topic belongs in a secondary course.
- For historical claims, use sources that describe the evidence and the debate rather than the popular version, since several famous stories in physics are substantially inaccurate.
- Distinguish an engineering design problem from a scientific question in your own writing, and say which one your example is.
- Ground ethics claims in professional guidance rather than in personal principle, and apply them to concrete situations such as discarded data or unattributed material.
- Express uncertainty honestly in any measurement you discuss, since modelling that is part of what the communication strand assesses.
- Check the accuracy of simplifications before you use them, because the memorable ones are frequently the wrong ones.
- Use APA where directions require it, including for framework documents and historical sources.
If a proctored objective assessment is part of your plan, work from released specifications and practise under time rather than rereading. The physics on a broad review test is rarely difficult; the pacing and the breadth are what cost candidates points.
What separates Competent from work sent back
Aspects score independently, and returns on this course usually name ethics or communication rather than physics.
- Physics content is accurate and pitched to the audience named.
- Historical material explains how a result was established, not just when.
- Engineering examples state their constraints and criteria.
- Ethics is applied to specific situations rather than described in general.
- Analogies are used and their limits stated.
- Standards and sources are cited by code and in APA.
Performance assessment work at WGU can be revised and resubmitted with no grade penalty, so a return costs calendar time in a six-month flat-rate term. Where a proctored objective assessment forms part of the course we prepare only: diagnostics, domain plans, timed practice and an honest readiness call, with no sitting and no portal credentials requested. We also never teach lessons, contact schools or complete field placement paperwork.
Six mistakes that cost time in D864
- Studying only the physics. Three of the four strands are not calculation, and they are the ones candidates leave until there is no time left.
- Repeating popular history. Several well known anecdotes in physics are wrong, and repeating one in a submission undermines the strand it was meant to satisfy.
- Confusing engineering with inquiry. Design works to constraints and criteria; investigation answers a question, and frameworks assess the difference.
- Writing ethics as a value statement. The aspect wants judgment applied to a situation, such as what to do with a result that does not fit.
- Using analogies without limits. An unqualified analogy plants a misconception that a later teacher has to remove.
- Preparing by rereading. Broad review assessments reward retrieval and timed practice, not familiarity.
How support works on this course
Send the task directions and the scoring detail from your Course of Study. If written work is scored, you get an aspect-mapped document with the historical, engineering, ethics and communication strands each answered concretely rather than generally. If exam preparation is the task, you get a domain diagnostic, an hour allocation weighted to your weakest areas and timed practice.
Most physics-strong candidates need the least help with physics. The hours that change the outcome go into the three strands that a physics degree never asked about, and those are quick to build once someone shows you what a scoreable answer looks like.
Candidates coming the other way, strong on teaching and thin on physics, need the reverse and a different plan. For them the priority is a diagnostic honest enough to name the two domains that are genuinely weak, then problem practice in those domains rather than reading, because a broad review assessment samples widely and an untouched area is the one that decides the result. Either way the first two hours of diagnosis are what makes the remaining forty-eight useful.
Questions students ask about D864
Is D864 the same course as EDUC 3225?
How is D864 different from D865?
Can you help with the Praxis review side?
Physics solid, but ethics and communication unwritten?
Send your task directions or topic list. You get concrete answers for the history, engineering, ethics and communication strands, plus a diagnostic for the content review.
Where D864 sits in WGU's programs
The July 2026 catalog places this code in 3 current WGU programs. Open a program page for the complete standard path and term positions. The live Degree Plan remains authoritative after transfer credit, substitutions, and mentor planning.
The assessments, one by one
The public catalog does not publish this course's PA/OA identity or task count. WGU Tutors publishes at most one PA manual per course and only from a WGU-controlled public rubric. Until that source exists, PA help begins from the student's real Course of Study and OA support remains preparation only.