In this chapter, In this chapter, your student will put together two small groups of objects (parts) to form a larger group (the whole). They will also take apart a whole group to form two parts. They will use a number bond to show the numbers of objects in the parts and in the whole. 

Learning how two parts make a whole is the first step in learning to add and subtract. The vocabulary words for this chapter are put together, take apart, part, whole, partner numbers, and number bond. Use the activities below to help your student practice putting together parts to make a whole and taking apart a whole to make parts. 

• Drop up to ten pennies on a table. Have your student name the number of heads, the number of tails, and the number of all pennies. 
• Make a line on a tabletop with chalk or tape. Invite your student to drop up to ten dried beans or other small objects on the table. Ask your student to write the numbers of beans that fell on each side of the line and the number of beans in all. 
• On the count of three, you and your student each show up to five fingers. Have your student name the number of fingers each person is showing and the number of fingers in all.