Premise: Students read clues about “freedom calendars” — the observances Black communities created — and practice evaluating claims: identifying examples, and recognizing what makes a historical claim strong.
Students solve four locks (an evidence-sort, a date lock, an evidence lock, and a word lock). Each lock reveals a short reasoning explanation when solved. The answer key is not shown on this page.
Student activity: grade68/calendars-student.html · ~10–15 minutes · works on tablets, laptops, and interactive whiteboards.
Skills & standards alignment
Content is aligned to these strands; the activity is a supporting resource, not a verbatim standard statement:
Texas TEKS · Social Studies (Gr 8): differentiate valid and invalid sources; identify bias and evaluate the reliability of information.
Common Core Literacy · RH.6–8.8: distinguish fact from opinion and evaluate source reliability.
Common Core Literacy · RH.6–8.1: cite specific textual evidence.
Reasoning habit: judging claims by evidence, not by feeling.
💡 Teacher tip: Use the “twelve months” decoy to show that a true statement can still be irrelevant — relevance is part of evidence quality.
📋 Texas framing (TEC §28.0022): This activity presents slavery and racial injustice as failures to live up to the nation’s founding principles of liberty and equality — the gap Frederick Douglass named — consistent with Texas law. A teacher who chooses to discuss related controversial topics should explore them objectively and free from political bias. Content is aligned to the 2022 Texas Social Studies TEKS.