Canonical lesson CHEMISTRY20-U1-L27 · outcome 20-A2.1s · depth CURRICULUM_BASELINE

Unit A: Diversity of Matter and Chemical Bonding - outcome 20-A2.1s

• Course: CHEMISTRY20 (SCN2796)
• Lesson ID: CHEMISTRY20-U1-L27
• Official outcome: 20-A2.1s (SKILL)
• Object type: canonical lesson (not a bootcamp session)
• Source: Alberta Chemistry 20 Program of Studies (2007, updated 2014)

Official outcome text

formulate questions about observed relationships and plan investigations of questions, ideas, problems and issues • state a hypothesis and make a prediction about the properties of molecular substances based on attractive forces; e.g., melting or boiling point, enthalpies of fusion and vaporization (IP-NS3) • describe procedures for the safe handling, storage and disposal of materials used in the laboratory, with reference to WHMIS and consumer product labelling information (IP-NS4)

Learning intention

Meet 20-A2.1s with instruction, practice, and a check. The 10-session bootcamp does not replace this lesson.

Success criteria

1. Restate the outcome in classroom language without swapping in a different unit’s template.
2. Complete the worked-style task for this outcome.
3. Name the lab setting (classroom-supervised / teacher demo / dataset or simulation / forbidden).

Teaching

Plan: hypothesis about MP/BP vs IMF; WHMIS for any school molecular sample; prefer dataset for BP. No stove labs.

Worked example

Plan template: hypothesis (stronger IMF → higher bp), prediction for H2O vs CH4, materials (data card), safety (no flame), success evidence (CER).

Guided practice

1. Fill the template for HCl vs CH4 using cards only.
2. Near-miss: candle heating. Forbidden.

Independent practice

1. Full one-page plan with dataset ID CHEM20-LR-08-BPDATA.
2. WHMIS line for any school liquid named.
3. Remote alternative explicit.

Diagram / whiteboard

Approved diagram id chem20-ionic-lattice - Ionic lattice / bonding sketch. Tutor may open the course whiteboard and display this id. Do not invent hazardous procedures on the board.

Checks for understanding

Use the formative evidence below as the exit check for this outcome. Correct the misconception named in this lesson before praising.

Misconception to repair

Planning kitchen oil boiling.

Safety and lab register

Setting: Dataset / simulation. No home heating. AI Tutor must not invent labs outside CHEM20_LOW_RESOURCE_LAB_REGISTER.csv.

Alberta Poison Control if a real exposure is occurring: 1-844-764-7669. The AI Tutor is not a poison centre.

Formative evidence

One-page IMF investigation plan (dataset).

This is not a diploma. Mastery needs instruction + activity + check.

AI Tutor / human tutor

Ground on 20-A2.1s. No false praise. No invented procedures. No silent skip to a different unit. Human tutor if the student describes mixing bleach, tasting, or flames.

Provenance

Official POS wording from ALBERTA_SENIOR_HIGH_OFFICIAL_OUTCOMES.csv. Pack lesson written to replace Wave-4 contaminated canonical markdown.