**1) Engage**

**2) Explore**

**3) Explanation**

**4) Extension**

**5) Evaluation**

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**Unit Outcome(s)**

**List of Materials**

**INSTRUCTIONAL SEQUENCE**

**Phase One: Engage the Learner**

These activities mentally engage students with an event or question. Engagement
activities capture students' interest and help them to make connections with
what they know and can do. The teacher provides an orientation to the unit and
assesses students¼ prior understanding of the concepts addressed in the unit.

**Phase Two: Explore the Concept**

Next, students encounter hands-on experiences in which they explore the concept
further. They receive little explanation and few terms at this point, because
they are to define the problem or phenomenon in their own words. The purpose at
this stage of the model is for students to acquire a common set of experiences
from which they can help one another make sense of the concept. Students must
spend significant time during this stage of the model talking about their
experiences, both to articulate their own understanding and to understand
another's viewpoint.

**Phase Three: Explain the Concept and Define the Terms**

Only after students have explored the concept does the curriculum and/or teacher
provide the scientific explanation and terms for what they are studying. The
teacher may present the concepts via lecture, demonstration, reading, or
multimedia (video, computer-based). Students then use the terms to describe what
they have experienced, and they begin to examine mentally how this explanation
fits with what they already know.

**Phase Four: Elaborate on the Concept**

The next stage of the model serves to help students elaborate on their
understanding of the concept. They are given opportunities to apply the concept
in unique situations, or they are given related ideas to explore and explain
using the information and experiences they have accumulated so far. Interaction
between the students is essential during the elaboration stage. By discussing
their ideas with others, students can construct a deeper understanding of the
concepts.

**Phase Five: Evaluate students' Understanding of the Concept**

The final stage of the model has a dual purpose. It is designed for the students
to continue to elaborate on their understanding and to evaluate what they know
now and what they have yet to figure out. Although the key word of the stage is
evaluate, the word does not indicate finality in the learning process. Indeed,
students will continue to construct their understanding of these broad concepts
throughout their lives. Evaluation of student understanding should take place
throughout all phases of the instructional model. The evaluate stage, however,
is when the teacher determines the extent to which students have developed a
meaningful understanding of the concept.

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