This Fluency Activity is a part of the Lesson 27, Unit 3, Grade K. Finding embedded numbers anticipates the work of Module 4 by developing part-whole thinking. Conduct the activity as described in Lesson 3, but this time, guide students to find hidden numbers within a group of 6. Look for opportunities to compare sets within the larger group. Encourage students to use the newly acquired vocabulary of more, less, and the same as. Guide students to say, "6 is 4 and 2, but 4 is more than 2."