This PPT is designed as a speaking activity.
HOW TO USE IT: Divide the class into groups. Groups take turns to break down a wall (brick by brick) to reveal the action. When enough bricks are removed, groups can try to guess the action. To check students' answers, click the check button and the whole picture is revealed (the wall simple crumbles). Assign points to groups for any correct answer. As this is intended for students to speak, the teacher should decide when to reveal the pictures (so let students guess freely).