Compose and decompose numbers from 11 to 19 into ten ones and some further ones, e.g., by using objects or drawings, and record each composition or decomposition by a drawing or equation (such as 18 = 10 + 8); understand that these numbers are composed of ten ones and one, two, three, four, five, six, seven, eight, or nine ones.
Related Lessons
Kindergarten
Represent Numbers 11-19
Lesson 318
Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out the missing parts in his number bonds. We represent numbers 11-19 in more than one way.
Kindergarten
10-Frames and More
Lesson 401
Join Mrs. Gray for a Numeracy Talk with Dotson working on the double ten frame. We compose numbers 11-19 using 10 ones and some more ones.
Kindergarten
Numbers 11-19
Lesson 402
Join Mrs. Gray for a Numeracy Talk with Dotson working on the Counting Buddy Senior. We represent numbers with ten frames and dots or counters.
Kindergarten
Numbers 11-19 in Different Ways
Lesson 403
Join Mrs. Gray for a Numeracy Talk with Dotson seeing the Counting Buddy Senior but building what we saw on a double ten frame. We also show numbers 11-19 in different ways.
Kindergarten
Write Equations for Numbers 11-19
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.
