Review of 2-Dimensional Shapes
Review of 2-Dimensional Shapes
Grade Levels
Course, Subject
Rationale
Vocabulary
Square- two-dimentional shape that has 4 equal sides and 4 vertices
Rectangle- two-dimensional shape that has 4 sides with opposite sides equal in length
Circle- two-dmensional shape that has all points equal from the center
Triangle- two-dimensional shape that has 3 sides and 3 angles
Oval- two-dimensional shape that looks like an egg
Objectives
Students will be able to identify the following two-dimensional shapes: circle, square, rectangle, oval, and triangle.
Students will be able to describe the attributes of the following two-dimensional shapes: circle, square. rectangle, oval, and triangle.
Lesson Essential Question(s)
How do I identify shapes based on their attributes and properties?
How can I compare and classify geometric shapes?
Duration
45 minutes
Materials
Math Journals
Colored Plastic 2-Dimensional Shapes
Sentence Frames
A _____ has _______ sides.
It has _______________.
A ______ has _______, ________, and ________.
My shape has ________, ________, and ________.
It looks like a ______________.
Suggested Instructional Strategies
Instructional Procedures
"Today we are going to review two-dimensional shapes. You learned about them last year in kindergarten. I want to see how much you remember before we start our geometry unit."
"First, I want you to tell me what you know about shapes. What are some examples? What qualities to they have?"
Record student answers
"Good job! I am impressed with how much you guys remembered."
"If you would take out your math journals, I am going to give you the definitions that I want you to know."
Teacher writes the definitions on the board that the students are to record in their journals. Classroom items are used as examples of the different geometric figures.
"Now that you have the definitions, I am going to give you sentence frames to complete about the shapes we just defined. You will be given an example of each shape to help you complete your sentence frames. Some of you will be working with partners, others will be working on their own. I will tell you which you are doing."
Teacher will pass out the sentence frames to each student. They will then provide provide and go over a model so the students know what is expected of them. Students will have the rest of the time to complete their sentence frames. While working, the teacher will walk around the room monitoring student progress and providing help when needed.
Differentiation for different levels of English comprehension:
Beginning Students: Work with a partner to complete the first set of sentence frames.
Intermediate Students: Work by themselves on the first set of sentence frames or with a partner on the second set.
Advanced Students: Work by themselves to complete the second set of sentence frames.
Formative Assessment
Students will be informally assessed based upon how they complete their sentence frames. They are being observed throughout the entire work period as well. The completion of the sentence frames are being looked at for both understanding of mathematical concepts, as well as for knowing the appropriate geometric vocabulary in English.