1st Grade: Addition and Subtraction

Teaching the basics of addition and subtraction is a huge responsibility for 1st grade teachers. This is where the foundation is laid that they will need to be successful in Math.

With that said, here are some resources to help teach addition and subtraction to 1st graders :)

Here are some great books and articles that have a ton of excellent resources on teaching early addition and subtraction.

Mastering the Basic Math Facts in Addition and Subtraction

Developing Number Concepts, Book 2 Addition & Subtraction

Article: Promoting Meaningful Mastery of Addition & Subtraction

Here are a few awesome Math Start read alouds that can be used both as a literacy read aloud and to reinforce the math concepts:

·         Animals on Board (addition)

·         Elevator Magic (subtraction)

·         Mall Mania (addition strategies)

Great resources to use for student work or centers:

Ways to Make 6 - 10 

*This activity is great for small group or an independent work center. Students use 2 different colored cubes to make different combinations and record the addition sentences. 

Using 10 to add 9

*This is a really tricky concept and this video explains it pretty well and has some great visuals of moving 1 over to complete the ten frame. It might be a bit too complicated to show students but it gives great ideas on how to teach it and showing students parts of it with strong models could be really helpful. 

Here are resources divided by topic:

Making Ten

·         Quick blog post about importance of ten: http://mathcoachscorner.blogspot.com/2012/05/importance-of-10.html

·         http://www.accomplishate.com/preschool/printables/make6-10.pdf Page 5 is a great organizer that can be used with 2 different colored unifix cubes to generate number sentences equal to ten

·         http://www.teacherspayteachers.com/Product/Kindergarten-Math-Common-Core-KOA4-Standard-Assessment-241181 Pretty basic making 10 sheet

·         https://docs.google.com/file/d/0BzmWv3-5sRwiMWY2MTkwNDgtMWNkOS00MWU5LWExMjItZGNmNzNmYzk0YTEz/edit Work station for making ten

·         http://www.snappymaths.com/addition/make10/resources/make%2010%20ladybirds.pdf

  Using Ten to add 9

·         http://www.brainpopjr.com/math/additionandsubtraction/makingten/preview.weml BrainpopJr video about making 10, could work well  with higher groups, again might go over their heads but has some cool visuals

·         Basic worksheet http://www.pleasanton.k12.ca.us/lesweb/first/reteach/r8-4.pdf

·         The first few pages could be good homework for this unit https://irieclass.wikispaces.com/file/view/SLeveled+Problem+Solving+and+Homework-Grade+2.pdf 

  Fact Families

·         http://guidedmath.wordpress.com/2010/04/01/teaching-fact-families-in-guided-math-groups/ Progression on teaching concrete to pictoral to abstract (If you scroll down this page there are a TON of great resources

·         I especially like this awesome conceptual lesson http://illuminations.nctm.org/Lesson.aspx?id=329