If it is clear that what you've planned isn't working

Stop and regroup. Pens down. On the carpet. All focus on you.

• Assess the problem - students may not tell you right away they don't understand. Have them chat with their neighbour about what they don't understand.

1. If you feel it is possible to salvage the lesson:

• Start from square one, assume they know nothing.
• Teacher model the task if necessary.

2. If the task you have planned seems far too difficult (or easy) even with teacher modelling, abandon ship.

• Switch to Plan B - something which requires no prep. A good idea is to ask students to write something related to the topic/instructional goals. e.g. write me down 3 facts and 3 opinions about ________.
• Have students discuss / check each other's work. This will be a useful gauge on their current level.
• Link that lesson's work to the next class - revisit the topic at the appropriate level or use that writing as a new starting point.