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# Number Talk - Addition with Animation

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Presentation (Powerpoint) File

204 KB|57 pages
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This is a PowerPoint presentation with animation that I have created to help my students and other teachers with doing number talks. This presentation asks for students to solve an addition problem in three different ways. Once you have given your students an appropriate amount of time, you can click forward through the animations which will show the students examples of different ways to solve the problems. They are then asked to share the methods that they came up with other students. About half of the time I have the students share out their responses with the entire class and the other half of the time they will share within their groups or with their neighbors.

This slide show begins with a single slide showing students what compatible numbers are. The next slide discusses methods one could use to decompose and combine numbers using compatible numbers. The following 55 slides show an addition problem and asks the students to solve it in three different ways. The animation that is involved hides three different example ways to solve the problem. After the students have worked on the problem, either in their heads or on paper, you can click through the animations showing them various ways of solving the problem. The last animation on each slide asks for students to share their methods of solving the problems. This is an important step in that there can be a large variety of ways in which to solve the problems and it is important that the students can solve the problems in a variety of creative ways.

In general, a number talk should be done orally by the students. But I have found that students often need assistance when starting out with number talks by organizing their ideas on paper. I will often start off the year with having students do the problems on paper and then slowly transition over the year to having students solve the problems mentally. If they only ever solve the problems on paper, they may never see the importance of not using the standard algorithm.

The problems presented on these slides range in ability from the first few problems involving single digit problems such as 7 + 4 or 4 + 9. The mid-level problems, which form the bulk of the slides, are mostly two-digit plus two-digit problems along the lines of 22 + 17 or 37 + 77. The last few slides involve some more challenging problems like 67 + 116 or 217 + 324.
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57 pages
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