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Showing posts with label Doubles Facts. Show all posts
Showing posts with label Doubles Facts. Show all posts

Saturday, February 22, 2014

Doubles Snack

To review the concept of using doubles to solve addition and subtraction number situations, the students made edible dominoes. They added icing on top of a graham cracker and then drew a line down the middle with the knife. Then, they added one chocolate chip to each side to represent the pips on a domino. As they did this, they said the related addition and subtraction number sentence. Then, of course, they ate them!







Thursday, November 15, 2012

Domino Doubles Snack

To introduce the conept of doubles, the students created dominoes out of graham crackers, vanilla icing, and milk chocolate morsels. They first put one piece of chocolate on each side and verbally identified the addition number sentence. They continued by adding one morsel to each side of the domino until we reached the sum of 18. Then, of course, they enjoyed eating their snack!






Sunday, February 12, 2012

Dinosaur Dentist: Doubles -1

In math we have been reviewing how to use doubles addition and subtraction sentences to solve other math facts. The students created doubles neighborhoods to relate doubles and doubles +1. I teach the students then when they are thinking about doubles +1 the two addends are "neighbors" on the number line. The concept is the same for doubles -1. If it is +1, go up one on the number line. If it is -1, go down on number on the number line. We also discussed how doubles are always even numbers and doubles +1/-1 are always odd numbers. You can learn more about the doubles neighborhoods here.

To help the students practice this concept, we played a game in the computer lab called Dinosaur Dentist. In this game, the students pull one tooth from a dinosaur, which has the same number of teeth on top and bottom (the double). They then have to use the double to determine what the answer to the double -1 would be. You can have your child play this game at home for free along with Robin Hood Doubles where the students simply identify the sum of a given double.

Tuesday, November 8, 2011

Dominoes Doubles Snack Style Recording Sheet

Thank you to Carrie at A First Grade Teachers Passions and Obsessions for creating a recording sheet to go along with our Dominoes Doubles Snack lesson. If you haven't had a chance to check out her blog, go do so! It is great! You can view a slideshow of my students creating their Dominoes Doubles here.

Sunday, November 6, 2011

Doubles Dominoes - Snack Style

My teammate, Mrs. Timms, had an excellent idea of how to get the students to visualize addition doubles. We use dominoes as manipulatives to teach doubles so she extended this by suggesting we create edible dominoes with graham crackers, white icing, and chocolate chips. We started by adding one chocolate chip on each side to model 1+1= 2. We then added another chocolate chip to each side to model 2+2=4. We continued until we had modeled 9+9=18. Of course, after modeling the doubles, the students ate them! Below are two close-ups of the edible dominoes along with a slideshow of the students making them.



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Doubles Tree Map

To help the students remember addition and subtraction doubles, we built a class Tree Map to sort and identify the facts. We included pictures of real-life double examples to help them visualize doubles. The pictures included things such as eyes (1+1=2), insect legs (3+3=6), and semi-truck wheels (9+9=18).

Addition Doubles

This week we are learning addition and subtraction doubles. Learning doubles helps the students recognize other math facts more quickly. To help your child practice doubles at home, have them play the fun matching game Ladybird Doubles. In this game, the students choose a doubles addition sentence card at the top and then try to find the matching sum on the bottom.

Thursday, May 19, 2011

Computer Work Portfolios

Each week our class goes to the computer lab at least once. Because we usually go during our math block, our computer lessons tend to focus on math concepts. Below are a few movies that showcase the work the students have done this year in the computer lab. The students exported the pictures themselves and saved them to our school's shared drive. They are currently working on creating their own movies to showcase their individual work which will be uploaded to their KidBlog sometime next week.

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Monday, February 28, 2011

Math in Review

To prepare for our end of six weeks math exam which is this week, the students have been working in rotating math stations. They have been practing ordering larger numbers from least to greatest and greatest to least, creating and extending patterns with a variety of materials, and identifying and solving addition and subtraction problems through the use of Doubles and Doubles Plus One.

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Doubles and Doubles+1 Sort

Last week in computer lab the students created a t-chart using Pixie 2 as a way to sort Doubles and their related Doubles+1 addition facts. They modeled the addition facts using dominoes which they then labeled. We first did the lesson as a group using the school's new Promethean Board. The students then completed the work independently at their student stations.




Doubles' Neighbor: Doubles Plus One

Last week we reviewed Doubles Plus One by creating Double and Doubles Plus One neighborhood houses. We talked about how if you learn a Double, you can learn a Double Plus One because one addend goes up by one therefore the sum goes up by one. The students were able to see that the two addends were numbers that are next to one another on a numberline - they were neighbors. The students then worked in groups to complete fact families for Doubles and their Doubles Plus One neighbor. As we discussed their fact families they noticed that Doubles Plus One have more number sentences than Doubles, that Doubles are always even because since the numbers are equal they each have a partner, and that Doubles Plus One are always odd because there is always one too many. You can read their reflections on Doubles and Doubles Plus One at their student blog.

Saturday, January 29, 2011

"Go Fish" Doubles and Doubles+1

Last week we learned about Doubles+1. The students built Doubles towers and then added 1 to the second tower to practice the addition equations. For additional practice the students played a Doubles and Doubles+1 version of "Go Fish." You can download the game here to practice at home or in your own classroom. Just print the fish on the back of the number cards and you're ready.


Monday, December 27, 2010

Double It Up!

A few weeks ago in computer lab we reviewed doubles addition and subtraction problems by recreating our Doubles Tree Map on the computer. We used the program Pixie 2 to match dominoes and real-world objects to their addition and subtraction double. Below is a video of the students' work:

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Wednesday, December 1, 2010

Seeing Double!

We continued our math lessons today of adding and subtracting doubles. First, we used pop cubes to demonstrate doubles and created personal anchor charts of the doubles facts. Then, sttudents took turns holding up various doubles dominoes and saying aloud the addition fact represented and its corresponding subtraction fact. We then placed them on a Tree Map. The students then looked at pictures of real world examples of doubles and placed them on the correct branch of the tree. After we completed the Tree Map, students discussed the relationship between the addition and subtraction facts. As an informal evaluation of their understanding, the students put ladybugs with double dots on them in order from least to greatest. They then matched real object examples of doubles to the ladybugs. To help your child practice doubles, visit the Quia website to practice using flashcards, a matching game, and a concentration game.

Tuesday, November 30, 2010

Doubles Flashcards

This week we are learning addition and subtraction shortcuts such as using "doubles" (1+1=2, 3+3=6, etc.) To help you child at home, you can use the online interactive flashcards found on Math Cafe. There are flashcards for Doubles Addition and Doubles Subtraction. Students need to be able to understand how addition and subtraction problems are related.

Wednesday, February 3, 2010

Dominoe Doubles

During Math Tubbing time, the students practiced identifying Addition Doubles and their Doubles +1 partners using dominoes. Dominoes are a great, inexpensive math manipulative that you can use at home. Many families already have a set of dominoes at home. The dominoes can be used for addition practice, for quick number recognition, and to identify Doubles and Doubles +1 or -1 as we did in class.

Monday, January 18, 2010

Doubles Facts


A strategy to help children learn their math facts at home is to help them learn the Doubles Addition Facts (1+1=2, 2+2=4, etc.) as well as their related subtraction facts. For example, if I know 4+4=8, then 8-4=4. We have previously learned the Double Facts in class and are now working on Doubles Plus 1 and Doubles Minus 1. For extra practice at home visit the interactive flascards pages Doubles Addition, Doubles Subtraction, Doubles Plus 1, and Doubles Minus 1.



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