Work with numbers 11-19 to gain foundations for place value
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
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.
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.
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.
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.
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.
