As students enter the room, they are handed a slip of paper with questions about dilations. They fill in a chart with the coordinates of points after a given dilation. This do now provides a brief review of dilations and scale factor before the student start the activity.
Before the final assessment, we have several days of review. It is important to review content before the assessment to help students identify skills they still need to practice. In this lesson, students practice problems (MP4) involving concepts from the similarity unit, trigonometry unit and coordinate geometry unit.
Students work independently on the questions. They use their notebooks for reference and if they have further questions, they ask students at their tables for help. The tables are groups with students of mixed abilities. Some students are strong in certain areas while other students are strong in different areas. They use their strengths to help each other answer questions they may have.
As the students work, I circulate around the room and address any misconceptions students still may have about similarity, trigonometry, and coordinate geometry.
Towards the end of the activity section, I assign each student a specific question to give his or her answer to when we go over the sheet. Each student presents the question to the class on the document camera.
At the end of the lesson, we go over each question from the review sheet. Students present their answers to the class. While each student is presenting, the other students check their work and make corrections. It is the responsibility of the other students to verify the information being presented by their peers. Taking ownership of the lessons increases student engagement and comprehension.
After the presentations I answer any additional questions students may have about similarity, trigonometry or coordinate geometry.