Tuesday, April 17, 2012

Addition and Subtraction


Addition

Our students worked with a partner to create addition number sentences. Beforehand,we showed them the plus symbol and explained what it is used for. The students used whiteboards and markers to write down their sentences. After a few minutes, the students shared the addition problems they created and solved. 





We created bracelets out of pipe cleaners and pony beads and had the students think of different number combinations.



Each bag had a question: "How many different ways can you make the number 6? 7? 8? 9? or 10?"

 


There are so many great websites with different interactive games for students. This website has various topics for each grade level and tons of great resources for teachers to use!!



Another activity that the students could do while at math stations is to use this pocket chart to create various addition problems. 


Subtraction

To introduce subtraction we watched a video on Brainpop Jr. about basic subtraction. 




Our students used their part-part whole mats and math manipulatives to create and solve subtraction problems. 



We also read various books about subtraction. The students were interactive during each story and yelled out the answers to the subtraction problems. 


On another day the students used these counting boxes to create subtraction problems out of the manipulatives they had. They created stories such as "There were 10 ladybugs eating aphids and two flew away. How many are left?" 






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