## Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from

Represent addition and subtraction with objects, fingers, mental images, drawings (drawings need not show details, but should show the mathematics in the problem), sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.

## Related Lessons

Lesson 404

Join Mrs. Gray for a Numeracy Talk with Dotson seeing the double ten frame but building what we saw using a Rekenrek. We work with numbers 11-19 and write equations.

Lesson 315

Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out his number bonds to match ten frames. We are going to have fun figuring out how many objects are in our collections.

Lesson 313

Join Mrs. Gray for a Mystery Math Mistake! Can you find her error? See how we can use math fingers to find 10 or how many more we need to get to 10 from a given number!

Lesson 314

Join Mrs. Gray for a Mystery Math Mistake! I wonder if she made a mistake in her drawing? Pack your bags - we're going camping! We'll see 10 friends, but some will be hiding in the tent. Can you figure out how many friends are hiding?

Lesson 307

Join Mrs. Gray for a subtraction word problem with Professor Barble! Next, get ready for some fun with using D.C. to find ALL the ways to break apart numbers.

Lesson 308

Join Mrs. Gray for a subtraction word problem with Professor Barble! We are going to have some fun doing word problems with 2 parts. We will learn together why labeling word problems help us to understand what the problem is asking.

Lesson 309

Join Mrs. Gray for a subtraction word problem with Porfessor Barble! We are going to take word problems to a new level with putting together and taking apart with both addends unknown. I wonder if you will be able to come up with ALL of the ways to solve!

Lesson 310

Join Mrs. Gray for a subtraction word problem with Porfessor Barble! Get ready to solve word problems more than one way. You will discover a pattern to help you understand word problems that can have multiple answers!

Lesson 311

Join Mrs. Gray for a Mystery Math Mistake word problem. Get ready to have fun with 10 frames matching equations to compositions and decompositions of 10.

Lesson 312

Join Mrs. Gray for Mystery Math Mistake word problem. Get ready to have fun with 10 frames by playing Shake Those Discs and figuring how many more are needed to make 10.

Lesson 305

Join Mrs. Gray for a word problem with Professor Barble! Next, get ready to have some fun with pattern block designs as we match expressions to two parts.

Lesson 306

Join Mrs. Gray for a word problem with Professor Barble! Get your mallet ready to work with D.C. as we decompose and compose numbers with snap cube trains!

Lesson 303

Join Mrs. Gray for a word problem with Professor Barble! Next, get your mallet ready to decompose and compose numbers up to 5 with D.C.

Lesson 304

Join Mrs. Gray for a word problem with Professor Barble! Next, get ready to have some fun with pattern block designs as we match expressions to two parts.

Lesson 301

Join Mrs. Gray to talk about numbers with the Counting Buddy Junior. Then get ready to match fun story problems with the correct addition or subtraction expression!

Lesson 302

Join Mrs. Gray & Dotson to talk about numbers with My Counting Buddy Junior. Next, we are going to have so much fun playing a game together by matching the drawing to the expression.

Lesson 218

Join Mrs Gray & Dotson for a Numeracy Talk with My Counting Buddy Junior! Get ready to have some fun with comparing addition and subtraction word problems!

Lesson 217

Join Mrs. Gray & Dotson for a Numeracy Talk with My Counting Buddy Junior! Next be ready to have some fun playing Trash Can Subtraction and modeling subtraction word problems!

Lesson 215

Join Mrs. Gray for Numeracy Talk with Dotson working on conservation to 10. Get your addition brain ready as we will have some fun with object to show how to do addition word problems to 10.

Lesson 216

Join Mrs. Gray for Numeracy Talk with Dotson working on conservation to 10. Get your math brain ready as we will have some fun with quick draws to show how to do addition word problems to 10.

Lesson 213

Join Mrs. Gray for Numeracy Talk with Dotson working on conservation to 10. Get your imagination ready as we will have some fun with objects to show how to do addition word problems to 10.

Lesson 214

Join Mrs. Gray for Numeracy Talk with Dotson working on conservation to 10. Get your imagination ready as we will have some fun with objects to show how to do subtraction word problems to 10.