How Common Is Mateo's Cleft, and in Whom?
Disease domain · Lesson 8 of 20 · Shared clinical backbone (the cleft team)
Today's goal: Students will read real cleft epidemiology data and describe how prevalence varies by cleft type, sex, ancestry, and laterality, then locate Mateo's profile within the most common pattern.
What a finished product looks like
This is a model of the work you should turn in. Use it to check your own: match the structure and the level of detail, do not copy it. Your wording should be your own.
For Mateo's parents: a cleft like Mateo's is common, not rare. Orofacial clefts happen in about 1 in 700 births worldwide, and Mateo's exact type, a cleft lip and palate together, is the single most common type at about 45% of all clefts. He is also a boy (clefts of the lip are about twice as common in boys), his cleft is on one side (unilateral clefts outnumber both-sided about 4 to 1), and it is on the left (about 70% of one-sided clefts are left-sided). So Mateo is a very typical case, not a rare exception. One honest caution: prevalence does differ between population groups, and the exact rates vary from study to study; in particular, a single trustworthy Native American prevalence number is not settled in the research, so we keep that comparison general.
Also due today: Note for the chart: this typical, patterned profile is a breadcrumb toward a common multifactorial cause, but no diagnosis is named yet.
How this was built, step by step
The finished product above did not appear all at once. Here is the path from the question to the turned-in work, so you can follow the same steps.
- 1Start from today's question: How common is a like Mateo's, and which babies does it happen to most?
- 2Work the Model and the Explore questions to reason it out before writing anything.
- 3Pull the specific evidence the product needs from the reading and any database you used.
- 4Write it up in the required format: Write one plain-language paragraph for Mateo's parents answering how common a like his is and whether he is a rare exception or a typical case, citing at least two specific numbers, plus one honest caution that exact ancestry rates vary between studies and a precise Native American figure is not settled.
- 5Check it against the rubric, then submit.
| Criterion | Proficient | Developing | Beginning |
|---|---|---|---|
| Complete | Every required part of the artifact is present and filled in. | Most parts are present, but one is missing or left blank. | Several parts are missing. |
| Accurate | The science and data are correct and match the evidence. | Mostly correct, with a small factual slip. | Key science or data is wrong. |
| Scientific reasoning (CER) | States a claim, backs it with specific evidence, and explains the reasoning. | Has a claim and evidence, but the reasoning is thin or missing. | Gives an answer with no evidence or reasoning. |
| Professional communication | Clear, organized, and labeled the way a clinician or scientist would write it. | Readable but disorganized or missing labels. | Hard to follow. |
| Submitted | Turned in the right way (Schoology for routine work) and confirmed. | Turned in, but in the wrong place or unconfirmed. | Not turned in. |
- CompleteProficient: Nothing is left blank: the model fills every part of "Write one plain-language paragraph for Mateo's parents answering how common a cleft like his is and whether he is a rare exception or a typical case, citing at least two specific numbers, plus one honest caution that exact ancestry rates vary between studies and a precise Native American figure is not settled.".
- AccurateProficient: Every number and claim matches the case evidence.
- Scientific reasoning (CER)Proficient: It names a claim, cites the specific evidence, and explains the reasoning, not just the answer.
- Professional communicationProficient: It is organized and labeled like a real chart note.
- SubmittedProficient: It would be turned in on Schoology and confirmed.
WebXam problem for today's skill
One exam-style question that uses exactly what you practiced today. Try it before you reveal the answer, then read why each choice is right or wrong.
Tap an answer to see the full explanation. Nothing is recorded or graded.