Canonical lesson CHEMISTRY20-U1-L29 · outcome 20-A2.3s · depth CURRICULUM_BASELINE

Unit A: Diversity of Matter and Chemical Bonding - outcome 20-A2.3s

• Course: CHEMISTRY20 (SCN2796)
• Lesson ID: CHEMISTRY20-U1-L29
• Official outcome: 20-A2.3s (SKILL)
• Object type: canonical lesson (not a bootcamp session)
• Source: Alberta Chemistry 20 Program of Studies (2007, updated 2014)

Official outcome text

analyze data and apply mathematical and conceptual models to develop and assess possible solutions • graph and analyze data, for trends and patterns, on the melting and boiling points of a related series of molecular substances (AI-NS2) [ICT C7-4.2]

Learning intention

Meet 20-A2.3s 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

Analyze: graph a related series of molecular bps from the card; identify London vs hydrogen-bonding anomalies.

Worked example

Plot Group 14 hydrides bp vs period; note H2O anomaly separately on Group 16. Conclusion in two sentences tied to IMF.

Guided practice

1. Draw the graph axes and plot at least four given points.
2. Near-miss: a titration calculation pasted into the graph analysis. Wrong-unit - mark it.

Independent practice

1. Identify the anomaly point and explain.
2. Limitation of the dataset (few points).
3. SI: °C labelled.

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

Inventing bp numbers not on the card.

Safety and lab register

Setting: Paper analysis of pack data. 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

Graph + anomaly CER.

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

AI Tutor / human tutor

Ground on 20-A2.3s. 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.