All the solutions provided in McGraw Hill My Math Kindergarten Answer Key PDF Chapter 9 Lesson 3 Sort by Size will give you a clear idea of the concepts.
McGraw-Hill My Math Kindergarten Answer Key Chapter 9 Lesson 3 Sort by Size
Explore and Explain
Teacher Directions: Use six 
of the same color. Use two large buttons and four small buttons. Sort the buttons by size. Place the sorted buttons in the treasure box. Trace and color them to show how you sorted.
Answer:
See and Show
Question 1.
Question 2.
Answer:
Question 3.
Answer:
Directions: 1. The beach boils were sorted by size. Trace the Xs to show how the beach boils were sorted. 2-3. Sort the objects by size. Draw Xs to show how you sorted.
On My Own
Question 4.
Answer:
Question 5.
Answer:
Question 6.
Answer:
Directions: 4-6. Sort the objects by size. Draw Xs to show how you sorted.
Problem Solving
Question 7.
Answer:
Directions: 7. Look at the pairs of objects. Describe their sizes. Sort the objects by size. Color the large objects purple and the small objects yellow.
McGraw Hill My Math Kindergarten Chapter 9 Lesson 3 My Homework Answer Key
Question 1.
Question 2.
Answer:
Question 3.
Answer:
Directions: 1-3. Sort the objects by size. Draw Xs to show how you sorted. Tell how you sorted.
Question 4.
Answer:
Vocabulary Check
Question 5.
sort
Answer:
Question 6.
size
Answer:
Directions: 4. Sort the objects by size. Draw Xs to show how you sorted. Tell how you sorted. 5. Sort the recycle bins by size. Draw an X on the large recycle bins. 6. Draw an X on the objects that are the same size.
Math at Home Place kitchen towels and wash cloths in a group. Have your child sort the group by size.
Answer: