3rd Grade Math Unit 11
Geometric Concepts: Classifying Shapes
12 Instructional Days - 5th 6 Weeks
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Big Idea:
Classify and sort two and three dimensions figures based on attributes.
Student Expectations:
Priority TEKS
3.6(A) [Readiness] Classify and sort two- and three-dimensional figures, including cones, cylinders, spheres, triangular and rectangular prisms, and cubes, based on attributes using formal geometric language.
3.6(B) [Supporting] Use attributes to recognize rhombuses, parallelograms, trapezoids, rectangles, and squares as examples of quadrilaterals and draw examples of quadrilaterals that do not belong to any of these subcategories.
Ongoing TEKS
3.3(F) [Readiness] Represent equivalent fractions with denominators of 2, 3, 4, 6, and 8 using a variety of objects and pictorial models, including number lines
3.4(F) [Supporting] Recall facts to multiply up to 10 by 10 with automaticity and recall the corresponding division facts.
3.6(C) [Readiness] determine the area of rectangles with whole number side lengths in problems using multiplication related to the number of rows times the number of unit squares in each row.
3.7(B) [Readiness] determine the perimeter of a polygon or a missing length when given perimeter and remaining side lengths in problems
Student Learning Targets:
- I will classify and sort two-dimensional figures.
- I will classify and sort three-dimensional figures.
- I will use attributes to recognize quadrilaterals.
Writing Prompt: How is a cube similar and different from a rectangular prism?
Stem: A cube and rectangular prism are similar/different….
Writing Prompt: Explain why a square is also a rectangle (or rhombus).
Stem: A square is also a rectangle because…
Writing Prompt: Compare and contrast a prism and a pyramid.
Stem: Prisms and pyramids are alike/different…..
Essential Questions:
- What are the ways to describe shape?
- Why is it important to be able to describe and name geometric shapes?
- Where in the real world are there geometric shapes?
Extra Information:
Adopted Textbook: Pearson - enVision Math
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