G1 U5 L3 TE
Applied MP
MPs * Embedded MP 1
Conceptual Lesson Grade 1 · Unit 5 · Lesson 3
2
3
4
5
*
MC: 1.MD.1
6
7
8
*
Student Journal Pages
13-16
object.
Today, I will compare the length of two objects by using a third
Vocabulary Compare the length of two objects by using a third object:
Teacher Resources Considerations: When comparing more than two objects use the suffix –est. Continue to use –er when comparing two objects. When objects have not been lined up, show students how to measure objects with their fingers. Objects needed for this lesson: 4 pieces of colored yarn of different lengths (in order from shortest to longest: yellow, red, green, blue), 3 pencils of different length, 3 strips of paper of different length, 3 crayons of different length, and 3 books with covers of different lengths.
Steps: The first paintbrush is shorter than the paintbrush in the box. It is the shortest.
1. Put the objects in order from shortest to longest. 2. Compare the length of the objects using one of the three objects.
The last paintbrush is longer than the paintbrush in the box. It is the longest.
Application of MPs: MP1:
What did you do first? Why?
MP6: How can you use math vocabulary in your explanation? MP7: What steps will help you solve the problems?
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Answer Key: I/M
SGP
FCU
HW
1. See IM #1
1. Answers will vary
1. Answers will vary
1. 8 + 4 = 12; 12 stickers; check
2. See IM #2
depending on the items
depending on the items
selected.
selected.
2. See SGP #2
2. Answers will vary depending on the items
drawings
2. 7 + 8 = 15; 15 fruits; check drawings
selected.
3. 9 + 7 = 16; 16 students; check drawings
4. No. 8 + 9 = 17; 17 balls; check drawings
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
1. Compare the lengths of two objects by using a third.
Model how to line up 3 pieces of yarn (one short red, one medium green, and one long blue) to compare length.
Emphasize that in order to compare length, it is necessary to look carefully at where all 3 objects start and end. They must start at the same place.
Explain that the length of all the pieces of yarn can be compared by looking at the green (medium length) yarn.
Model how to identify the longest yarn and the shortest yarn in comparison to the medium-length yarn. Use the terms “shorter” and “longer” when comparing 2 objects.
Red Green
Blue
The green yarn is longer than the red yarn. The blue yarn is longer than the green yarn. So, the blue yarn must be longer than the red yarn.
The red yarn is the shortest piece. The blue yarn is the longest piece.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
2. Compare the length of two objects by using a third.
Model how to line up 3 pencils of different lengths.
Emphasize that in order to compare length, it is necessary to look carefully at where all 3 objects start and end. They must start at the same place.
Explain that the length of all the pencils can be compared by looking at the medium sized pencil.
Model how to identify the longest pencil and the shortest pencil in comparison to the medium sized pencil. Use the terms “shorter” and “longer” when comparing 2 objects.
A B
C
Pencil A is shorter than pencil B. And, pencil B is shorter than pencil C. So, pencil A must be shorter than pencil C.
Pencil A is the shortest. Pencil C is the longest.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
1. Compare the lengths of two strips of paper by comparing them to a third.
Direct students to line up and compare the lengths of 3 different strips of paper.
Discuss which is the longest and which is the shortest of the 3 by comparing the 2 other strips of paper to the medium length strip of paper. Use the terms “shorter” and “longer” when comparing 2 objects.
2. Compare the lengths of two pieces of yarn by comparing them to a third.
Direct students to line up and compare the lengths of 3 pieces of yarn (1 short yellow, 1 medium red, and 1 long green).
Discuss which is the longest and which is the shortest of the 3 by comparing the yellow and green yarn to the red yarn. Use the terms “shorter” and “longer” when comparing 2 objects.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Directions: Compare the length of two objects by using a third object.
1. Compare the length of 3 different sized crayons. Hold up the crayon that is longer than 1 crayon but shorter than the other. Continue comparing the other 2 crayons to this crayon, and then find the shortest and longest crayon.
2. Compare the length of 3 different sized workbooks/ books from their desk. Hold up the book that is longer than 1 book but shorter than another. Continue comparing the other two books to this book, and then find the shortest and longest book.
Recap today’s lesson with one or more of the following MP questions: MP1: What did you do first? Why? MP6: How can you use math vocabulary in your explanation? MP7: What steps helped you solve the problems?
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Name: ____________________________ Date: ______________________________ Directions: Review addition within word problems. Read each word problem. Draw a picture to prove your answer is correct. Write a matching equation.
1. There are 8 red stickers and 4 blue stickers. How many stickers are there altogether?
2. There are 7 oranges and 8 strawberries. How many pieces of fruit are there total?
Drawing:
Drawing:
+
+
Equation:
Equation:
3. There are 9 boys and 7 girls in Mrs. Smith’s class. How many students are in Mrs. Smith’s class?
4. There are 8 basketballs and 9 soccer balls. How many balls are there in all?
Drawing:
8 + 9 = 18?
+ Equation:
Copyright © Swun Math
Is this equation correct YES
NO
Draw a picture to prove your answer.
+
Grade 1 Unit 5 Lesson 3 C TE
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
MPs * Embedded MP 1
Conceptual Lesson Grade 1 · Unit 5 · Lesson 3
2
3
4
5
*
MC: 1.MD.1
6
7
8
*
Student Journal Pages
13-16
object.
Today, I will compare the length of two objects by using a third
Vocabulary Compare the length of two objects by using a third object:
Teacher Resources Considerations: When comparing more than two objects use the suffix –est. Continue to use –er when comparing two objects. When objects have not been lined up, show students how to measure objects with their fingers. Objects needed for this lesson: 4 pieces of colored yarn of different lengths (in order from shortest to longest: yellow, red, green, blue), 3 pencils of different length, 3 strips of paper of different length, 3 crayons of different length, and 3 books with covers of different lengths.
Steps: The first paintbrush is shorter than the paintbrush in the box. It is the shortest.
1. Put the objects in order from shortest to longest. 2. Compare the length of the objects using one of the three objects.
The last paintbrush is longer than the paintbrush in the box. It is the longest.
Application of MPs: MP1:
What did you do first? Why?
MP6: How can you use math vocabulary in your explanation? MP7: What steps will help you solve the problems?
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Answer Key: I/M
SGP
FCU
HW
1. See IM #1
1. Answers will vary
1. Answers will vary
1. 8 + 4 = 12; 12 stickers; check
2. See IM #2
depending on the items
depending on the items
selected.
selected.
2. See SGP #2
2. Answers will vary depending on the items
drawings
2. 7 + 8 = 15; 15 fruits; check drawings
selected.
3. 9 + 7 = 16; 16 students; check drawings
4. No. 8 + 9 = 17; 17 balls; check drawings
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
1. Compare the lengths of two objects by using a third.
Model how to line up 3 pieces of yarn (one short red, one medium green, and one long blue) to compare length.
Emphasize that in order to compare length, it is necessary to look carefully at where all 3 objects start and end. They must start at the same place.
Explain that the length of all the pieces of yarn can be compared by looking at the green (medium length) yarn.
Model how to identify the longest yarn and the shortest yarn in comparison to the medium-length yarn. Use the terms “shorter” and “longer” when comparing 2 objects.
Red Green
Blue
The green yarn is longer than the red yarn. The blue yarn is longer than the green yarn. So, the blue yarn must be longer than the red yarn.
The red yarn is the shortest piece. The blue yarn is the longest piece.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
2. Compare the length of two objects by using a third.
Model how to line up 3 pencils of different lengths.
Emphasize that in order to compare length, it is necessary to look carefully at where all 3 objects start and end. They must start at the same place.
Explain that the length of all the pencils can be compared by looking at the medium sized pencil.
Model how to identify the longest pencil and the shortest pencil in comparison to the medium sized pencil. Use the terms “shorter” and “longer” when comparing 2 objects.
A B
C
Pencil A is shorter than pencil B. And, pencil B is shorter than pencil C. So, pencil A must be shorter than pencil C.
Pencil A is the shortest. Pencil C is the longest.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
/ Directions: Compare the length of two objects by using a third object.
1. Compare the lengths of two strips of paper by comparing them to a third.
Direct students to line up and compare the lengths of 3 different strips of paper.
Discuss which is the longest and which is the shortest of the 3 by comparing the 2 other strips of paper to the medium length strip of paper. Use the terms “shorter” and “longer” when comparing 2 objects.
2. Compare the lengths of two pieces of yarn by comparing them to a third.
Direct students to line up and compare the lengths of 3 pieces of yarn (1 short yellow, 1 medium red, and 1 long green).
Discuss which is the longest and which is the shortest of the 3 by comparing the yellow and green yarn to the red yarn. Use the terms “shorter” and “longer” when comparing 2 objects.
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Directions: Compare the length of two objects by using a third object.
1. Compare the length of 3 different sized crayons. Hold up the crayon that is longer than 1 crayon but shorter than the other. Continue comparing the other 2 crayons to this crayon, and then find the shortest and longest crayon.
2. Compare the length of 3 different sized workbooks/ books from their desk. Hold up the book that is longer than 1 book but shorter than another. Continue comparing the other two books to this book, and then find the shortest and longest book.
Recap today’s lesson with one or more of the following MP questions: MP1: What did you do first? Why? MP6: How can you use math vocabulary in your explanation? MP7: What steps helped you solve the problems?
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
Name: ____________________________ Date: ______________________________ Directions: Review addition within word problems. Read each word problem. Draw a picture to prove your answer is correct. Write a matching equation.
1. There are 8 red stickers and 4 blue stickers. How many stickers are there altogether?
2. There are 7 oranges and 8 strawberries. How many pieces of fruit are there total?
Drawing:
Drawing:
+
+
Equation:
Equation:
3. There are 9 boys and 7 girls in Mrs. Smith’s class. How many students are in Mrs. Smith’s class?
4. There are 8 basketballs and 9 soccer balls. How many balls are there in all?
Drawing:
8 + 9 = 18?
+ Equation:
Copyright © Swun Math
Is this equation correct YES
NO
Draw a picture to prove your answer.
+
Grade 1 Unit 5 Lesson 3 C TE
Copyright © Swun Math
Grade 1 Unit 5 Lesson 3 C TE
