October 5, 2015
|
by Yolanda Swain

Lesson plan

2-D Shapes

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Do you need extra help for EL students? Try the Sides, Corners, and More, Oh My! pre-lesson.
EL Adjustments
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Do you need extra help for EL students? Try the Sides, Corners, and More, Oh My! pre-lesson.

Students will be able to name shapes according to their attributes.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments
(3 minutes)
  • Display a triangle to the class, either by drawing it on the whiteboard or using an interactive whiteboard. Ask your students to call out the name of the shape.
  • Discuss the shape attributes as a class. Great discussion questions include: How many sides does a triangle have? Are they straight or curved? How many corners does a triangle have?
  • Point to each corner on the triangle. Explain to the class that a corner is the place where two sides meet.
  • Count the sides of the triangle together. Explain that each side is a line that connects to two corners.
  • Explain to the class that today they will learn how to describe the attributes, or characteristics, of a shape to describe it, instead of just using its name!
(7 minutes)
  • Explain to the students that shapes are made up of straight or curved lines.
  • Draw a circle on the whiteboard. Ask the students to think about how many sides and corners the circle has.
  • After some discussion, tell the class that a circle doesn't have any sides or corners. Invite students to find objects around the room that resemble the same shape as a circle (e.g. pencil holders, cups, etc.).
  • Draw and label a rectangle and pentagon on the board.
  • Point to the rectangle and demonstrate how to count the corners and sides. Ask students to think-pair-share what they notice about the number of corners and sides they found.
  • Allow a few students to share out, and explain to the students that the number of corners and sides are the same.
  • Repeat the same process with the pentagon.
(10 minutes)
  • Give each student the following pattern blocks: triangle, trapezoid, hexagon, and square.
  • Ask students to hold up the correct pattern block as you call out the number of corners and sides a shape has. As you call out numbers, remind students that the number of corners and sides a shape has is the same number.
(10 minutes)
  • Pass out a copy of the 2-Dimensional Shapes worksheet to each student.
  • Have students complete the sheet on their own.

Enrichment: Challenge advanced students to draw and label more advanced shapes, such as hexagons, heptagons, octagons, and decagons. Instruct them write a riddle for each shape name on a sheet of paper, which includes the correct number of corners and sides the shape has.

Support: Encourage struggling students to use pattern blocks to trace the triangle, hexagon, and trapezoid. Ask them to count the number of sides and to write the number beside the drawing.

(5 minutes)
  • Pass out a sheet of drawing paper to each student. Instruct your students to draw and label a pentagon on the paper.
  • Remind students that they should count and label the sides and corners on the paper as well.
(5 minutes)
  • Have students work with a partner to find objects around the classroom that have varying amounts of corners and sides. You can also ask students to find objects with curved or straight sides.
  • Make a list of all the objects or take pictures of the objects and refer to them during your next lesson on shape attributes!

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