This stencil is a sub's best friend! I keep a pack of 30 of these on me at all times while subbing, as well as a fun storybook. If there is time left over after a lesson, or the teacher does not leave a plan for the period, read the story book to the children, discuss and then have them draw their favourite part of the story. If this is done with the younger grades, be sure to write the title of the story on the board so they can copy. Also, be sure to brainstorm ideas, as young students may lack ideas! This is written in French for French lessons!
For the older grades, I have them write a sentence or two either describing their picture or a summary of the book.
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