For teachers
Use XiXteen as a reasoning curriculum, not just a quiz.
Each skill PDF introduces a critical thinking move, explains why it matters, names the student moves to practice, flags common confusions, and then provides the full objective item set with feedback for every choice.
Classroom flow
A simple weekly routine
- Open with one daily board or one focused skill set.
- Have students predict the answer before seeing feedback.
- Discuss one distractor: why is it tempting, and why is it wrong?
- End with a transfer question from current class material.
Skill PDFs
Sixteen focused teaching packets
Each packet stands on its own, so a teacher can assign one skill without handing students the whole corpus.
01
What's the Claim?
What exactly is the speaker asking us to accept?
02
What Do the Words Mean?
Which word or phrase must be made clearer before the argument can be fairly judged?
03
What's the Argument?
What role does each sentence play in the argument?
04
What's Assumed?
What unstated idea must be true for the reason to support the conclusion?
05
Does That Matter?
Which fact actually helps us judge the claim?
06
How Good Is the Evidence?
How strong is the evidence for this claim?
07
Can We Trust the Source?
How much trust should we place in this source, and why?
08
Does the Logic Follow?
Does the conclusion really follow from the evidence?
09
What's the Fallacy?
What recognizable bad move does this argument make?
10
How Likely Is It?
How should uncertainty affect what we expect?
11
What Do the Numbers Say?
What does this number mean in context?
12
Cause or Coincidence?
Has the argument shown that one thing caused another?
13
What Else Could Explain It?
What else could explain the same facts?
14
What Bias Is Showing?
What mental pull is shaping this judgment?
15
What Are the Tradeoffs?
What does this choice gain, and what does it give up or risk?
16
How Should Belief Change?
How much should new evidence change confidence?