Find a Full Ten Inside a Teen Group
Make the stated teen group and circle exactly ten marks.
About 12 minutes, plus any extended practice
Open lesson 1Build Teen Numbers from Ten and More
Compose and record eleven through nineteen as a full ten and extra ones.
Before you begin
- Count to twenty; fill a ten-frame.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Write Ten Plus the Extra Ones
Read the full-ten amount and the extra ones.
About 12 minutes, plus any extended practice
Open lesson 2Complete a Teen Model with a Missing Ten
Draw the extra ones and leave an empty group-circle.
About 12 minutes, plus any extended practice
Open lesson 3Repair a Teen Label That Does Not Match
Count the full ten, then the extra marks.
About 12 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- Common Core State Standards, mathematics: K.NBT.A.1 — Compose and record eleven through nineteen as a full ten and extra ones.
These references informed the topic selection. They do not certify complete standards alignment.