Khaemenes High · Chemistry 11

Grade 11 · Week 07 · U2

Covalent Bonds & Lewis Models

Essential question: How do electron-sharing models explain molecular composition?

Standards: HS-PS1-2; HS-PS1-380% mastery + correctionsPortfolio evidence

Open Monday Deep Lesson

Monday

Phenomenon / Launch

Different molecules can contain the same elements yet have different structures and properties.

Learning target

Build an initial model and explanation for: How do electron-sharing models explain molecular composition?

Evidence task

Record observations, questions, an initial model, and one claim that could be tested. Use these concepts where relevant: covalent bond; Lewis structure; octet model; bond order; resonance model.

Open Tuesday Deep Lesson

Tuesday

Concept & Model Revision

Study and explain the week's core ideas: covalent bond; Lewis structure; octet model; bond order; resonance model

Reading

Open text on covalent bonding.

Evidence task

Revise Monday's model. Add two evidence-backed annotations and explain one limitation or uncertainty.

Open Wednesday Deep Lesson

Wednesday

Data & Quantitative Reasoning

Count valence electrons and compare bond multiplicity.

Evidence task

Show units, setup, calculation or graph reasoning, then write what the quantitative evidence can and cannot establish about: How do electron-sharing models explain molecular composition?

Open Thursday Deep Lesson

Thursday

Investigation / Engineering

Molecular model kit or paper Lewis structures.

Safety boundary

Use the course safety charter. If supervision, facilities, materials, or conditions are not appropriate, use the supplied-data/simulation alternative rather than improvising hazardous procedures.

Evidence task

Record variables or design constraints, procedure/model, observations/data, and one revision you would make after reviewing the evidence.

Open Friday Deep Lesson

Friday

CER / Synthesis

Answer the essential question: How do electron-sharing models explain molecular composition?

Mastery evidence

Submit a claim, at least two specific pieces of evidence, reasoning that connects them, one limitation/counterclaim, and a correction note for any essential concept below 80%.

Portfolio

Select one artifact from this week and explain why it is trustworthy evidence of growth.