What makes a good lesson objective?
A good lesson objective is specific, measurable, and student-facing: it names what students will be able to DO by the end of the lesson, and how you'll know.
A good lesson objective is specific, measurable, and written from the student's side of the desk. It names the observable skill students will demonstrate by the end of the lesson — not the activity they'll do.
Use the frame "Students will be able to [measurable verb] [content] [condition/criteria]." Choose verbs you can actually see and assess: identify, compare, solve, justify, construct — not understand or know, which you can't observe.
A weak objective: "Students will learn about fractions." A strong one: "Students will be able to compare two fractions with unlike denominators and justify which is greater using a model." The second tells you exactly what to teach, what to watch for, and what the exit ticket should ask.
Tie the verb to the cognitive level you're targeting (recall vs. application vs. reasoning) so the objective, the activity, and the assessment all line up.
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