Grade: 3rd
TEK:
(3.5) Number, operation, and quantitative reasoning. The student estimates to determine reasonable results. The student is expected to:
(A) round whole numbers to the nearest ten or hundred to approximate reasonable results in problem situations; and
(B) use strategies including rounding and compatible numbers to estimate solutions to addition and subtraction problems.
Link to Video (best viewed on GoogleChrome):
http://www.teachertube.com/viewVideo.php?video_id=32085
Description of Video:
A third grade teacher and her students drafted this almost 4 minute film about rounding to the nearest 10’s, 100’s and 1,000’s. The video begins with a student discussing his concerns about not understanding the concept of rounding. Just as fast as he could express himself, his classmate magically turns into the Rounding Queen. The Rounding Queen briefly reviews the concept of rounding to her audience and then, immediately discusses her rational using a number line. She has her peer write down a number on the chalk board to be rounded to the nearest 10’s and discusses how place value of the one’s number determines the rounding outcome. The pair continue this routine for the 100’s and the 1,000’s. Both students pause and reflect, and even model a think-aloud, during each example to discuss the rational behind their answers. At the end of the video, the Rounding Queen dubs her peer as the Rounding King for mastering the skill.
Suggested Instructional Strategy:
I believe this video from TeachTube may be used for pre-teaching the concept of rounding to the nearest 10’s, 100’s and 1,000’s place. I appreciate two students teaching a student-based audience. My recommended instructional strategy is to have students make a chart in their math journals that has a column for what they know and what is new to them. Before playing the video, have the students brainstorm thoughts and beliefs about rounding. Then instructed the students that during the video, there will be paused writing opportunities to record new information learned about rounding. To help promote thinking and understanding, I would suggest to question and review key vocabulary, terms, concepts and strategies so students can make notes and record solving strategies for future use during future lesson.
Megan,
This video is great for students! I really like the examples and clear explanations the students discuss in the video. I think it would be very effective because the students are learning from other students. I agree with the strategy to use stop the video and have students record new ideas and information. You could also have students pair up – one would be the rounding king or queen, and challenge the other student to round a number. It would allow students to “act out” what they are learning.
Overall great find!
LM