1.6.C

Math1st Grade

The Standard

create two-dimensional figures, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons

Texas Essential Knowledge and Skills for Mathematics

Teacher's field guide

What Students Need to Do: Students build and draw flat shapes from given features, such as a set number of sides or corners. They make shapes in different sizes and positions and recognize that a square belongs to the rectangle group.
What Mastery Looks Like: A student can build or draw each named shape with the correct number and type of sides and corners. The student can make a square and explain why it is also a rectangle.
Common Misconceptions: Students may think a turned square becomes a rhombus or is no longer a square. They may call any four-sided figure a rectangle or count corners incorrectly on a hexagon. Some may think circles have sides or corners.
How to Assess It: Give students paper and ask them to draw a triangle, hexagon, rhombus, and a rectangle that is also a square. Have them label the sides and corners.

Lesson moves

Give students craft sticks, yarn, and geoboards to build shapes, then compare the number of straight sides, curved edges, and corners.
Ask, "How can a square also be a rectangle?" Have students draw both shapes and explain their thinking to a partner.
Use shape cards for a matching game where students pair each shape name with a drawing and an attribute card.
Take a classroom shape hunt and sketch objects that resemble circles, triangles, rectangles, squares, rhombuses, and hexagons.

Keep exploring

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