Blog -- Amy Lemons

Step Into Second Grade with Amy Lemons

 This resource is a blog maintained by a second grade teacher named Amy Lemons.  Although she teaches all content areas and also maintains a "Teachers Pay Teachers" shop, she consistently updates her blog and provides great examples of math lessons in her second grade classroom.  The link above is to a lesson on subtraction.  The teacher has the students sort math problems into categories based on like differences.  But in order to sort, students are given laminated number lines and dry-erase markers to first show their work and how they solved the problem.  The tactile number lines are great manipulatives for students to use when solving addition and subtraction problems.  This particular lesson would be used as a centers activity in the classroom and would be a great way for students to practice the skill of subtraction independently in a meaningful way.  There are many other math lessons and resources provided by this blogger that would be great additions to a second grade classroom.

Standards:
The lesson mentioned above (and linked in this post) meets the following standards:
2.OA.2 Add and subtract within 20.  Fluently add and subtract within 20 using mental strategies.