Canonical lesson CHEMISTRY20-U2-L10 · outcome 20-B1.4s · depth CURRICULUM_BASELINE

Unit B: Gases - outcome 20-B1.4s

• Course: CHEMISTRY20 (SCN2796)
• Lesson ID: CHEMISTRY20-U2-L10
• Official outcome: 20-B1.4s (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 • communicate questions, ideas and intentions and receive, interpret, understand, support and respond to the ideas of others while collecting data on gases (CT-NS1) • prepare a group presentation, using multimedia, to illustrate how the pressure, temperature, volume and amount of a gas determines the universal gas constant (R) (CT-NS2) [ICT P3-4.1]. Concept Mathematics Course, Strand and Specific Outcome Data Collection and Analysis Grade 9 Mathematics, Statistics and Probability (Data Analysis), Specific Outcome 3 Measurement and Unit Conversions Mathematics 10C, Measurement, Specific Outcome 2; Mathematics 10-3, Measurement, Specific Outcome 1; Mathematics 20-3, Algebra, Specific Outcome 3; Mathematics 30-3, Measurement, Specific…

Learning intention

Meet 20-B1.4s 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: share gas data, respond to peers, prepare a short multimedia outline explaining how P, V, T, n relate to R (without claiming a student measured R precisely).

Worked example

Storyboard: 4 slides - KMT, Boyle, Charles, PV=nRT. Peer question protocol: ask for units and kelvin.

Guided practice

1. Draft the 4-slide outline with one peer question.
2. Near-miss: silent acceptance of T in °C in PV=nRT. Correct it.

Independent practice

1. Peer review two slides for unit errors.
2. Two sentences: collaborative correction norms.
3. R units stated from the card (L·kPa·mol−1·K−1 or equivalent).

Diagram / whiteboard

Approved diagram id chem20-pv-boyle - P-V Boyle sketch (or gas law axes). 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

False praise of Celsius ratios.

Safety and lab register

Setting: Presentation planning only. 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

4-slide outline + peer unit check.

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

AI Tutor / human tutor

Ground on 20-B1.4s. 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.