Tim Bottman

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by Tim Bottman on Mar 11, 2014
This level includes a review of all facts plus 6 facts that have not been covered by any strategies.
by Tim Bottman on Mar 11, 2014
These facts all have at least one addend of 8 or 9. One strategy for these facts it to build onto the 8 or 9 and up to 10 and then add on the rest. For 6 + 8, start with 8, then 2 more makes 1-, and that leaves 4 more for 14.
by Tim Bottman on Mar 11, 2014
Near doubles are also called the “doubles-plus-one” facts and include all combinations where one addend is one more than the other. There are 18 of these facts. When students realize that these are facts that have addends with a difference of 1 (1 + 2), (3+ 4), (5 + 6) etc. they simply double the smaller addend and add 1.
by Tim Bottman on Mar 11, 2014
Near doubles are also called the “doubles-plus-one” facts and include all combinations where one addend is one more than the other. There are 18 of these facts. When students realize that these are facts that have addends with a difference of 1 (1 + 2), (3+ 4), (5 + 6) etc. they simply double the smaller addend and add 1.
by Tim Bottman on Mar 11, 2014
19 facts have zero as one of the addends. Although these facts seem to be the simplest of all, some students will overgeneralize the idea that answers to addition are bigger. Putting these facts into real life situations oftentimes help the students to reinforce the zero rule.
by Tim Bottman on Mar 11, 2014
There are only 10 doubles facts. These facts are relatively easy to learn and become a powerful way to learn many other facts. Examples of double facts include: 5 + 5, 3 + 3, 6 + 6. Dice from board games are good visuals to use to help students remember their double facts.
by Tim Bottman on Mar 11, 2014
This strategy is used for facts that have a 1 or a 2 as one of it’s addends (example: 8 + 2). Out of the 100 addition facts students will learn, 36 fall under the one-more-than and two-more-than facts. In these situations, students simply count up 1 or 2 from the greatest addend. This should be the only situation where students “count” to find their answer.
by Tim Bottman on Feb 24, 2014
Adobe Illustrator Keyboard Shortcuts for Perspective Drawing
by Tim Bottman on Feb 20, 2014
Adobe Illustrator Keyboard Shortcuts for Tool Selection
by Tim Bottman on Feb 20, 2014
Adobe Illustrator Keyboard Shortcuts for Viewing Artwork

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