Canonical lesson CHEMISTRY20-U1-L30 · outcome 20-A2.4s · depth CURRICULUM_BASELINE

Unit A: Diversity of Matter and Chemical Bonding - outcome 20-A2.4s

• Course: CHEMISTRY20 (SCN2796)
• Lesson ID: CHEMISTRY20-U1-L30
• Official outcome: 20-A2.4s (SKILL)
• Object type: canonical lesson (not a bootcamp session)
• Source: Alberta Chemistry 20 Program of Studies (2007, updated 2014)

Official outcome text

work collaboratively in addressing problems and apply the skills and conventions of science in communicating information and ideas and in assessing results • analyze and evaluate, objectively, models and graphs constructed by others (CT-NS3) • research the ways that scientists develop and analyze new materials (PR-NS1) [ICT C2-4.1]

Learning intention

Meet 20-A2.4s 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

Teamwork: critique peer models and graphs; research how scientists develop new materials using classroom-safe sources.

Worked example

Peer rubric: shape correct?, lone pairs shown?, graph using given data?, no false praise. Mini-research: one sentence from a textbook/approved site on a polymer or adhesive - cite it.

Guided practice

1. Score a flawed CO2-bent model.
2. Near-miss: unverifiable blog with no date. Reject or flag.

Independent practice

1. Three rubric scores on a second peer graph.
2. One cited materials sentence.
3. Integrity: who measured what.

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

Copying a peer’s invented data.

Safety and lab register

Setting: Paper. No new wet work. 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

Peer rubric + one citation.

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

AI Tutor / human tutor

Ground on 20-A2.4s. 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.