SKYE-NET · waking Sophia
SKYE-NET.liveOne love · peace, balance & harmony for all
Menus
Back to curriculum

Reaction mechanisms

KS5 · 40 minutes · Use curly arrows for nucleophilic substitution.

Visual learning map for Reaction mechanisms: observe, try, then explain. Use curly arrows for nucleophilic substitution.
Visual learning map for Reaction mechanisms: observe, try, then explain. Use curly arrows for nucleophilic substitution.

Answer by: Type. You can change method or take a break at any time.

Page 1 of 30

Our learning goal

Use curly arrows for nucleophilic substitution.

Your turn: Choose one thing you would like to understand by the end.

Offline speech needs an installed English device voice.

My lesson notes & project
Full teaching script
  1. Today: Reaction mechanisms. Our goal: Use curly arrows for nucleophilic substitution.
  2. Take one idea at a time. Pause after each sentence; ask for repetition whenever you need it.
  3. A curly arrow shows a pair of electrons moving from where they are rich to where they are poor. SN2 is a single concerted step with inversion of configuration; SN1 goes through a planar carbocation, so it racemises. Tertiary halides favour SN1, primary SN2.
  4. Together: choose one example from the explanation and show how it works. What do you notice?
  5. Your turn: Draw both mechanisms for 2-bromobutane with hydroxide.
  6. Reflect: what made sense, and what would you like explained differently?
Teacher lessons & videos

Watch and learn

Videos come only from approved education channels and need internet. Use the arrows in the player for more videos from the same channel.