Science9-12+
Covalent Bonding and Lewis Structures Presentation
By Kerstin W.
A slide-based presentation for 10th grade chemistry that introduces covalent bonding and teaches students to draw Lewis dot structures for molecules like water, CO2, and methane. It moves through a hook, direct teaching, and guided practice, with speaker notes and built-in notice-and-wonder prompts that build scientific reasoning about electron sharing.
Customize for your classroom
Teacher Guide & Tips
- Use as a full class period lesson, pacing the hook and notice-and-wonder slides early so students can ground the abstract idea of shared electrons in familiar molecules.
- Discussion question: How is sharing electrons different from the electron transfer you saw in ionic bonding, and why does that make the molecule stable?
- Scaffold for struggling readers: Provide a blank valence electron count chart and have them tally electrons for each atom before drawing any structure.
- Extension for advanced students: Ask them to predict the Lewis structure of a molecule with a central atom that breaks the octet rule, such as SF6 or BF3, and justify their reasoning.
- Estimated time: about 45 to 60 minutes including the practice slides, with extra time if students draw structures at their desks.
Science9-12+
Covalent Bonding and Lewis Structures Presentation
By Kerstin W.
A slide-based presentation for 10th grade chemistry that introduces covalent bonding and teaches students to draw Lewis dot structures for molecules like water, CO2, and methane. It moves through a hook, direct teaching, and guided practice, with speaker notes and built-in notice-and-wonder prompts that build scientific reasoning about electron sharing.
Customize for your classroom
Teacher Guide & Tips
- Use as a full class period lesson, pacing the hook and notice-and-wonder slides early so students can ground the abstract idea of shared electrons in familiar molecules.
- Discussion question: How is sharing electrons different from the electron transfer you saw in ionic bonding, and why does that make the molecule stable?
- Scaffold for struggling readers: Provide a blank valence electron count chart and have them tally electrons for each atom before drawing any structure.
- Extension for advanced students: Ask them to predict the Lewis structure of a molecule with a central atom that breaks the octet rule, such as SF6 or BF3, and justify their reasoning.
- Estimated time: about 45 to 60 minutes including the practice slides, with extra time if students draw structures at their desks.