Take into consideration the group of students whom you are teaching. Student needs and ability levels should be considered to ensure all students are gaining from the given lesson.
Determine what it is that you want your students to gain from the lesson or activity you are planning on implementing; for example, how to multiply whole numbers.
Determine how you will assess, or be able to observe what students have attained from the lesson or activity. Think of action, measurable verbs to include in your objective. For example, list, state, identify are measurable verbs that you can include in your objective. In the given example of adding whole numbers, the objective might state, "Students will list the multiples of two."
Incorporate an activity that enables students to illustrate their attainment of the objective. For example, students might take a written test that requires them to supply the answers for the multiples of two, or you might ask them to verbalize their knowledge of these math facts.
Indicate the masterly level students should achieve; in other words, how many multiples of two will students have to know to be considered proficient at the skill.