Teaching Scenario“Mathematics : 3D shapes”

8th grade

byDini

Aprilaningrum

As Mrs. Dini began the lesson, she drew students’ attention to the objective written on the board and told students that the purpose of the unit was to identify the things that are included in 3D shapes flat (cubes, blocks/cuboids, prisms, and pyramid), flat-roll (cylinder and cone), and can roll (sphere) then can determine the area and volume. As she said the word flat shape, she dropped a props flat face on the table at the front of class, and as she said the word can roll and flat-roll, she rolling and dropped a prop flat-roll (cylinder) and rolling a prop roll (sphere). Then she repeated while pointing at the corresponding object, “Some props flat shape, and others flat-roll and can roll.” She went on to tell the students that at the end of the unit they would be able to explain the characteristics of 3D shapes. The words; flat shape, can roll, flat-roll, explain the characteristics and 3D shape were written in the word bank for students to see. The word list included content vocabulary (3D shape, flat shape, flat-roll, and can roll) as well as functional language (to explain the characteristic). Since many of her students were recent immigrants and had gaps in their educational backgrounds, Mrs. Dini was careful to make sure students not only knew the meaning of content vocabulary, but also to know the meaning of words associated with academic tasks, such as explained the characteristic and calculate.

Throughout the lesson, Mrs. Dini used language structures and vocabulary that she believed the students could understand at their level of proficiency. She slowed her normal rate of speed to make herself better understood by the students and she enunciated clearly. Also, she avoided the use of idioms, and when she sensed that students did not understand her, she paraphrased to convey the meaning more clearly. She repeated important words frequently and wrote them for student to see.

As the lesson progressed, Mrs. Dini asked the students to complete an activity in small groups. She showed a PowerPoint slide with the instruction which asked the students to calculate the area/volume of five shapes. And then she went over each step orally. After she finished with the steps of the instruction, she write a pattern of the area and volume and gave demonstrate how to calculate with a one of cube as an object.

The students went on the group works while Mrs. Dini to be facilitator and circulated each group to ask what the problem they found in exercises. After about 15 minutes, the activity ended and Mrs. Dini asked a representative of a group to explain the answer. Each group then makes a paper explaining the characteristics and calculates the area/volume of 3D shapes. After submitting the paper, Mrs. Dini closed the session of her lesson by reviewing the objectives.