Unit K.7:
Describe and Compose 3-D Shapes
3-dimensional objects can be described, classified, and analyzed by their attributes. Simple shapes can be combined to create complex shapes.
Unless otherwise noted, SFUSD Math Core Curriculum is licensed under the Creative Commons Attribution 4.0 International License
Teacher-facing pages are green
Student-facing pages are white
notes for teachers are in the speaker notes
New Learning:
Major emphasis:
Less emphasis:
Re-engagement:
Suggested Lesson Sequence
Assessment: Entry Task
Small group with slides or Seesaw Entry Task (Spanish)
Lesson 1*: K.7 LS1 Day 1 - Cubes
Lesson 2*: K.7 LS1 Day 2 - Cylinders
Lesson 3*: K.7 LS1 Day 3 - Cones
Lesson 4*: K.7 LS1 Day 4 - Spheres
*Lessons 1 through 4 - Also use Shapes Anchor Chart Jamboard (Spanish)
Lesson 5: K.7 LS2 Day 4 - Building 3-D Shapes
Lesson 6: K.7 LS3 Day 1 and Milestone Task - Composing 3-D Shapes
Assessment: Milestone Task
Small group with slides or Seesaw Milestone Task A (Spanish) and Seesaw Lesson 6* (Spanish)
*If students showed full understanding during the tasks in Lesson 6, you may use those tasks as Milestone Part B. If you have questions about student understanding, you may give the assignment again at the end of the unit, or assess understanding using the slides for live small groups.
Additional Resources
Independent Practice:
Raz Kids Books: The Shape Game (Spanish), Making Shapes (Spanish)
Other Resources:
Online Games and Activities:
Geometric Vocabulary:
Edges are the line segments that make up the framework of a 3-D shape. Two faces intersect at an edge. Students may call them sides or lines.
Faces are the flat surfaces of 3-D figures. Students may call them sides.
Note that there can be confusion with the use of “sides” as students may use them to mean the edges or the faces. Be sure to ask students to clarify which attribute they are referring to.
Vertices (vertex) are the points where two adjacent line segments meet on a 2-D shape or where three or more edges meet on a 3-D shape. Students may call them corners or points.
Vocabulary plays an important role in geometry and can cause myriad misunderstandings and confusions. Kindergarten students are not expected to use formal geometry language. They meet kindergarten standards by using only informal language. However, teachers should be using formal vocabulary and connecting it to the informal language of the students. The following notes and definitions are meant as a guide.
2-D Shapes lie flat in a plane and can be measured in two directions.
3-D Shapes are solid, do not lie flat in a plane, and can be measured in three directions.
Cone is a 3-dimensional figure with one curved surface and one circular face, one curved edge and one vertex. The vertex on a cone is called an apex.
Cube is a 3-dimensional figure with six congruent square faces.
Cylinder is a 3-dimensional figure with one curved surface and two congruent circular bases.
Sphere is a 3-dimensional figure made up of all points equally distant from the center
Which part of the shape are you describing?
face
edge
vertex
corner
point
| Norm | Questions |
| We can show math ideas in different ways |
|
| We talk to each other about math. |
|
| Mistakes help us grow. |
|
Questions that help to emphasize different math norms:
Synchronous and Asynchronous Teaching Options:
| Launch | Explore | Summarize |
|
|
|
|
|
|
|
Synchro-
nous (live)
Asynchronous (time-delayed)
Two Sample Teaching Plans:
Launch: Monday, Asynchronous
Explore: Monday, Hybrid
Summarize: Tuesday, Synchronous
Launch: Monday, Synchronous
Explore: Monday, Asynchronous
Summarize: Tuesday, Asynchronous
Additional Resource:
Splitting Screens on Zoom
You may be at a point in distance learning when you would like to have students work in another window while on Zoom if they don’t already. This allows them to do things like use virtual manipulatives to support their learning or work collaboratively in a Jamboard during live instruction.
You may use these short instructional videos (one for Chromebooks, one for Macs/PCs) to teach students how to split their screens between Zoom and another window. You can:
Unit K.7 Math Talks: Shape Talks
Objective: Compare and contrast shapes by describing their attributes. Description: Select two shapes to compare. Ask how the shapes are alike and how they are different. Vary the two shapes chosen to bring out particular attributes such as faces, edges (straight and curved), corners/points/vertices, and the 2-D faces that make up 3-D shapes. | |
Suggested Math Talks: See K.7 Math Talks (Spanish) for slides to use with students Question/Prompt: What is the same about these shapes? What is different? You may also use Seesaw Shape Talk Template (Spanish) | |
Anticipated Student Responses: Same: They both have curvy sides (edges). They both are 3-D. They both look like circles from above. They both roll. | Different: The earth is blue and green and the cylinder is yellow. The earth is round all over, but the cylinder has 2 flat circle sides (faces). The earth bumps out like a ball, but the cylinder has straight sides (edges) that go up and down and don’t bump out. The earth is real but the cylinder doesn’t look like a real thing. |
Continuing Daily / Weekly Routines:
Introduction to Shapes
14
Some shapes are flat, or 2-D:
Some shapes are solid, or 3-D:
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What shapes do you see where you are?
Find some shapes where you are that you can use during this unit.
Entry Task
The Entry Task answers the question:
What do you already know?
This Entry Task can be used as a brief assessment of what students already know about identifying, naming, and describing shapes.
Do not use this as an opportunity to teach this content. It will be taught in the lessons.
Use these slides with a small group of students, or as the introduction to Seesaw Entry Task (Spanish). Use K.7 Observation Sheet to make observational notes.
Major Focus of K.7 - Identify, name, describe, analyze, draw, and compose 3-D shapes.
Entry Task: Sorting Shapes
What do you notice about any of these shapes?
Let’s sort these shapes in different ways:
Sorting Shapes
Red
Not Red
Let’s sort these shapes in different ways:
Sorting Shapes
2-D shapes
3-D shapes
What is a way you can sort the shapes?
Sorting Shapes
______________
Not ______________
What is a way you can sort the shapes?
Sorting Shapes
______________
______________
Lesson 1: K.7 LS1 Day 1
Launch: Describe attributes of the shapes shown - cubes.
Explore: Find a shape that looks like a cube: draw it and describe it.
Summarize: What do you notice and wonder about these shapes? What is the same about all cubes?
Core Math to Emphasize
Informal language for shape attributes (corner, side, etc.) is the expectation for kindergarten. However, exposure to academic language (eg edges, faces, corners, sides, points) is beneficial. As a teacher, you may wish to use both academic and informal language while acknowledging your students’ correct use of informal language.
Use K.7 Observation Sheet to make observational notes.
Note that there can be confusion with the use of “sides” as students may use them to mean the edges or the faces. Be sure to ask students to clarify which attribute they are referring to.
Lesson 1:
Cubes
We can describe what is the same about all cubes.
Math Norms
25
Errors are gifts that promote discussion.
Answers are important, but they are not the math.
Talk about each other’s thinking.
Ask questions until ideas make sense.
Use multiple strategies and multiple representations.
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What did you see?
Make the shapes you saw with your hands.
LAUNCH |
1 |
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What do you notice?
Tell someone else your ideas.
LAUNCH |
1 |
“I notice _______.”
What do you notice?
LAUNCH |
1 |
“I notice _______.”
Can you find something where you are that looks like this shape?
What do you notice?
What do you notice?
LAUNCH |
1 |
Bird’s Eye View
Ant’s Eye View
Can you roll your shape?
What do you notice?
Find something where you are that looks like this shape.
Draw it and describe it.
What do you notice?
Bird’s Eye View
Ant’s Eye View
EXPLORE |
2 |
Options for monitoring and sharing work:
Students take turns describing each other’s objects out loud and recording on Cubes Jamboard (Spanish).
Use Seesaw Cubes (Spanish) for students to take a picture of their cube shape, draw it as best they can, and describe things they notice about their shape.
SUMMARIZE |
3 |
EXPLORE |
2 |
What do you notice?
What do you wonder?
SUMMARIZE |
3 |
Which part of the shape are you describing?
face
edge
vertex
corner
point
What is the same about all cubes?
SUMMARIZE |
3 |
Picture | Name | Description |
| cube |
|
Shape Anchor Chart Jamboard (Spanish) Option
Options for Asynchronous or Continuing Activities
Use Cubes Jamboard (Spanish) or Seesaw Cubes (Spanish) to continue drawing and describing cubes.
Shape scavenger hunt: students can take pictures of shapes in their environment that they think are cubes and not cubes. You may ask them to take pictures of “tricky” shapes that might cause disagreement about whether they are cubes or not cubes.
Explore cubes found in nature. For example, watch the video about Salt Crystals in the Dead Sea (VideoLink) or salt under a microscope (not accessible by VideoLink). This article describes how and why wombat poop is cube shaped.
Concentration: Match shape names with shape pictures (re-engage with 2-D shapes)
Lesson 2: K.7 LS1 Day 2
Launch: Describe attributes of the shapes shown - cylinders.
Explore: Find a shape that looks like a cylinder: draw it and describe it.
Summarize: What do you notice and wonder about these shapes? What is the same about all cylinders?
Core Math to Emphasize
Use K.7 Observation Sheet to make observational notes.
A cylinder can have one curved surface and two flat faces. Students may decide that a cylinder has two faces or include the curved surface and decide it has three faces. Students may also decide that a cylinder has 2 curved edges or no edges. These conclusions should be respected and further discussion encouraged. As long as students can describe the 2 different kinds of surfaces and the curved edges, it is not necessary to force them into one particular definition.
Lesson 2:
Cylinders
We can describe what is the same about all cylinders.
What did you see?
Make the shapes you saw with your hands.
LAUNCH |
1 |
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What do you notice?
Tell someone else your ideas.
LAUNCH |
1 |
“I notice _______.”
What do you notice?
LAUNCH |
1 |
“I notice _______.”
Can you find something where you are that looks like this shape?
What do you notice?
What do you notice?
LAUNCH |
1 |
Bird’s Eye View
Ant’s Eye View
Can you roll your shape?
What do you notice?
Find something where you are that looks like this shape.
Draw it and describe it.
What do you notice?
Bird’s Eye View
Ant’s Eye View
EXPLORE |
2 |
Options for monitoring and sharing work:
Students take turns describing each other’s objects out loud and recording on Cylinders Jamboard (Spanish).
Use Seesaw Cylinders (Spanish) for students to take a picture of their cylinder shape, draw it as best they can, and describe things they notice about their shape.
SUMMARIZE |
3 |
EXPLORE |
2 |
What do you notice?
What do you wonder?
SUMMARIZE |
3 |
Which part of the shape are you describing?
face
edge
vertex
corner
point
What is the same about all cylinders?
SUMMARIZE |
3 |
Picture | Name | Description |
| cylinder |
|
Shape Anchor Chart Jamboard (Spanish) Option
Options for Asynchronous or Continuing Activities
Use Cylinders Jamboard (Spanish) or Seesaw Cylinders (Spanish) to continue drawing and describing cylinders.
Shape scavenger hunt: students can take pictures of shapes in their environment that they think are cylinders and not cylinders. You may ask them to take pictures of “tricky” shapes that might cause disagreement about whether they are cylinders or not cylinders.
Explore where cylinders are found in nature. For example, watch the video about Cutting Bamboo (VideoLink) or one about the branches and trunks of trees (VideoLink).
PBS Kids - Highlight Zone: Find the hidden shapes (re-engage with 2-D shapes).
Lesson 3: K.7 LS1 Day 3
Launch: Describe attributes of the shapes shown - cones.
Use K.7 Observation Sheet to make observational notes.
Explore: Find a shape that looks like a cone: draw it and describe it.
Summarize: What do you notice and wonder about these shapes? What is the same about all cones?
Core Math to Emphasize
A cone can have one curved face and one flat face, or it can have a curved surface with one circular face. If students decide that a cone has only one face, this conclusion should be respected and further discussion encouraged.
Lesson 3:
Cones
We can describe what is the same about all cones.
What did you see?
Make the shapes you saw with your hands.
LAUNCH |
1 |
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What do you notice?
Tell someone else your ideas.
LAUNCH |
1 |
“I notice _______.”
What do you notice?
LAUNCH |
1 |
“I notice _______.”
Can you find something where you are that looks like this shape?
What do you notice?
What do you notice?
LAUNCH |
1 |
Bird’s Eye View
Ant’s Eye View
Can you roll your shape?
What do you notice?
Find something where you are that looks like this shape.
Draw it and describe it.
What do you notice?
Bird’s Eye View
Ant’s Eye View
EXPLORE |
2 |
Options for monitoring and sharing work:
Students take turns describing each other’s objects out loud and recording on Cone Jamboard (Spanish).
Use Seesaw Cone (Spanish) for students to take a picture of their cone shape, draw it as best they can, and describe things they notice about their shape.
SUMMARIZE |
3 |
EXPLORE |
2 |
What do you notice?
What do you wonder?
SUMMARIZE |
3 |
Which part of the shape are you describing?
face
edge
vertex
corner
point
What is the same about all cones?
SUMMARIZE |
3 |
Picture | Name | Description |
| cone |
|
Shape Anchor Chart Jamboard (Spanish) Option
Options for Asynchronous or Continuing Activities
Use Cone Jamboard (Spanish) or Seesaw Cone (Spanish) to continue drawing and describing cones.
Shape scavenger hunt: students can take pictures of shapes in their environment that they think are cones and not cones. You may ask them to take pictures of “tricky” shapes that might cause disagreement about whether they are cones or not cones.
Explore where cones are found in nature. For example, watch the video about Mayon Volcano (VideoLink), one about pine cones opening (VideoLink), or Evergreen Trees (VideoLink) and Why those trees are shaped like cones (VideoLink).
ABCya Shape Match: Match 2-D and 3-D shapes to objects or shape names.
Lesson 4: K.7 LS1 Day 4
Launch: Describe attributes of the shapes shown - spheres.
Use K.7 Observation Sheet to make observational notes.
Explore: Find a shape that looks like a sphere: draw it and describe it.
Summarize: What do you notice and wonder about these shapes? What is the same about all spheres?
Core Math to Emphasize
The discussion of the face of a sphere is a tricky subject. A sphere can be described as having one curved face, or it can be defined as a curved surface with no faces. If students decide on either definition, their conclusion should be respected.
Lesson 4:
Spheres
We can describe what is the same about all spheres.
What did you see?
Make the shapes you saw with your hands.
LAUNCH |
1 |
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
What do you notice?
Tell someone else your ideas.
LAUNCH |
1 |
“I notice _______.”
What do you notice?
LAUNCH |
1 |
“I notice _______.”
Can you find something where you are that looks like this shape?
What do you notice?
What do you notice?
LAUNCH |
1 |
Bird’s Eye View
Ant’s Eye View
Can you roll your shape?
What do you notice?
Find something where you are that looks like this shape.
Draw it and describe it.
What do you notice?
Bird’s Eye View
Ant’s Eye View
EXPLORE |
2 |
Options for monitoring and sharing work:
Students take turns describing each other’s objects out loud and recording on Spheres Jamboard (Spanish).
Use Seesaw Sphere (Spanish) for students to take a picture of their sphere shape, draw it as best they can, and describe things they notice about their shape.
SUMMARIZE |
3 |
EXPLORE |
2 |
What do you notice?
What do you wonder?
SUMMARIZE |
3 |
Which part of the shape are you describing?
face
edge
vertex
corner
point
What is the same about all spheres?
SUMMARIZE |
3 |
Picture | Name | Description |
| sphere |
|
Shape Anchor Chart Jamboard (Spanish) Option
Options for Asynchronous or Continuing Activities
Use Spheres Jamboard (Spanish) or Seesaw Sphere (Spanish) to continue drawing and describing cones.
Shape scavenger hunt: students can take pictures of shapes in their environment that they think are sphere and not sphere. You may ask them to take pictures of “tricky” shapes that might cause disagreement about whether they are sphere or not sphere.
Explore where spheres are found in nature. For example, watch the video about Jupiter Full of Earths (VideoLink), or other videos about planets orbiting (VideoLink), planet sizes (VideoLink) and the moon (VideoLink).
Watch a 3-D Shapes song (VideoLink).
Lesson 5: K.7 LS2 Day 1&2
Launch: Which shape doesn’t belong - describe shape attributes. How can we build each shape?
Explore: Make any of the shapes with any materials you have.
Summarize: Describe each shape and how it was made.
What was easy/hard to make and why?
Core Math to Emphasize
This lesson is meant to be very exploratory. Students are not expected to have any particular materials, nor to be able to build “perfect” shapes.
Use K.7 Observation Sheet to make observational notes.
Lesson 5:
Building 3-D Shapes
We can find and describe the edges, vertices, and faces of 3-D shapes by building them.
Which one doesn’t belong? Why?
LAUNCH |
1 |
“The ___ doesn’t belong because ___.”
| |
| |
Which part of the shape are you describing?
face
edge
vertex
corner
point
How do you think you could build each shape?
LAUNCH |
1 |
“To build the ___, we could _______.”
| |
| |
LAUNCH |
1 |
How could we build a cube?
LAUNCH |
1 |
How could we build a cone?
LAUNCH |
1 |
How could we build a cylinder?
LAUNCH |
1 |
How could we build a sphere?
LAUNCH |
1 |
Could we build any other shapes?
Make any of these shapes with any materials you have.
| | | | ? |
EXPLORE |
2 |
Options for monitoring and sharing work:
GIve students an opportunity to build shapes from any materials they have around them.
Use Seesaw Building 3-D Shapes (Spanish) for students to take a picture of the shape they made, name it and describe it.
SUMMARIZE |
3 |
EXPLORE |
2 |
Describe each shape and how it was made.
SUMMARIZE |
3 |
What was easy to make? Why?
What was hard?
Why?
SUMMARIZE |
3 |
Options for Asynchronous or Continuing Activities
Use Seesaw Building 3-D Shapes (Spanish) to continue making and describing shapes.
Make Shape Nets for students to print out (if possible), cut out, and build shapes. This helps students focus on the faces of shapes, as well as the edges and the vertices. These will be tricky for kindergarteners and are meant to be very exploratory!
Constructing and deconstructing a sphere in different ways can be an interesting topic that leads to many debates about the “best” way to do this, especially when it comes to how to “peel the globe” and turn it into a flat map. For more information, see this article or Ted Talk.
Read a RazKids book about different 3-D Shapes: The Shape Game (Spanish)
Lesson 6: K.7 LS3 Day 1
and Milestone Task
Launch: Read Changes, Changes. Put shapes together physically and virtually. Use position words to describe where shapes are.
Explore: Describe what you made using position words. Put shapes togehter that have matching faces.
Summarize: What did we make? Which shapes were easy/hard to match, and why?
Core Math to Emphasize
You may use information from this lesson as Part B of the Milestone Assessment. If you have questions about student understanding, you may give the assignment again at the end of the unit, or assess understanding using the synchronous milestone option.
Use K.7 Observation Sheet to make observational notes.
Lesson 6:
Compose
3-D Shapes
We can put shapes together to make new shapes.
What shapes do you see?
What did they use these shapes to make?
LAUNCH |
1 |
SAN FRANCISCO UNIFIED SCHOOL DISTRICT
Let’s use our shapes to build other shapes!
LAUNCH |
1 |
Find any shapes where you are and put them together however you want.
What is easy to put together? What is hard?
LAUNCH |
1 |
“It’s easy/hard to put together ___ and ___ because ___.”
How can we put these shapes together so their faces match?
LAUNCH |
1 |
“We can put the ___ ____ the ___.”
above
below
next to
under
inside
on
Describe what you made using position words.
Put any of these shapes together so that their faces match.
EXPLORE |
2 |
above
below
next to
under
inside
on
“I put the ___ ____ the ___.”
How do we use position words?
Put the penguin above the box.
Put the penguin below the box.
Put the penguin next to the box.
How do we use position words?
Put the penguin inside the box.
Put the penguin on the box.
Put the penguin under the box.
Options for monitoring and sharing work:
GIve students an opportunity to put their shapes together to build what they’d like.
Give students an opportunity to put virtual shapes together that have matching faces in size and shape using Put Together 3-D Shapes Jamboard (Spanish).
Use Seesaw Put Together 3-D Shapes (Spanish) for students to take a picture of the shape they made and put together the virtual shapes, then describe where they put the shapes using position words.
SUMMARIZE |
3 |
EXPLORE |
2 |
What did we make?
Which shapes were easy to match? Why?
Which shapes were hard to match? Why?
SUMMARIZE |
3 |
above
below
next to
under
inside
on
Options for Asynchronous or Continuing Activities
Use Put Together 3-D Shapes Jamboard (Spanish) or Seesaw Put Together 3-D Shapes (Spanish) to continue putting together shapes and describing using position words.
Find composite shapes in the environment or in videos. For example, see this video about Making a Piñata (VideoLink).
Read a RazKids book about different 3-D Shapes: Making Shapes (Spanish)
PBS Kids - Treehouse Trouble: Use 3-D shapes to build stable treehouses.
Play a shape game: Choose a solid from a set and hide it in your hand. Tell students, I have a solid. It has __ faces. What shape is it? If students name the correct shape, show them that they were correct. If they do not, give another clue such as, It has __ corners or It has _ edges. Repeat with a few objects making sure to use different attributes each time.
You may use information from this lesson as part of the Milestone Assessment. If you have questions about student understanding, you may give the assignment again at the end of the unit, or assess understanding using the synchronous milestone option.
Milestone Task: Part A
Use the following slides to launch the task (Part A). Students should have a clear understanding of the problem and ideas of the strategies they might use to solve it by the end of the launch. Launch may be done whole class or in small groups.
Use K.7 Observation Sheet to make observational notes.
The Milestone answers the question:
Did you learn what was expected of you from this unit?
Milestone Task: Part B*
Use K.7 Observation Sheet or K.7 Milestone Rubric to make observational notes.
The Milestone answers the question:
Did you learn what was expected of you from this unit?
*If students showed full understanding during the tasks in Lesson 6, you may use those tasks as Milestone Part B. If you have questions about student understanding, you may give the assignment again at the end of the unit, or assess understanding using the slides for live small groups.
Let’s sort these shapes in different ways:
Part A: Sorting Shapes
Curved sides
No curved sides
Let’s sort these shapes in different ways:
Part A: Sorting Shapes
Pointy parts
No pointy parts
Let’s sort these shapes in different ways:
Part A: Sorting Shapes
Circle faces
No circle faces
What’s a way you can sort the shapes?
Part A: Sorting Shapes
______________
No ______________
Part B: Composing Shapes
How can we put these shapes together so their faces match?
“Put the ___ ____ the ___.”
above
below
next to
under
inside
on