1st Grade Next Gen Standards

For this week I would like to move from the Kindergarten next gen math standards over to the 1st grade next gen math standards. Here we build on what the students have learned in kindergarten and more into harder mathematical practices. For this week I would like to take a look at this Standard:

1. Through their learning in the Operations and Algebraic Thinking domain, students:
• develop strategies for adding and subtracting whole numbers based on their prior work with small numbers;
• use a variety of models, including discrete objects and length-based models (e.g., cubes connected to form lengths), to model add-to, take-from, put-together, takeapart, and compare situations to develop meaning for the operations of addition and subtraction, and to develop strategies to solve arithmetic problems with these operations;
• understand connections between counting and addition and subtraction (e.g., adding two is the same as counting on two);
• use properties of addition to add whole numbers and to create and use increasingly sophisticated strategies based on these properties (e.g., “making tens”) to solve addition and subtraction problems within 20; and
• build their understanding of the relationship between addition and subtraction by comparing a variety of solution strategies

For this I have an exercise that may help to get the kids using models to better visualize the content. Below I have created this with the tools in my class. These are just basic models but the usage of these cubes and the dry erase board allow the students to interact with the work. Also this can be used to incorporate length into the lesson plan.  If you have any questions please leave a comment!