Kindergarten Fall Math — Counting to 100, Subitizing, Cardinality, Shapes, and Pattern
Lesson 14 25 min math.gK.f.lesson_14

2D shapes — hexagon and oval, plus shape hunt

Objectives
  • Students can name the hexagon (6 sides) and oval (closed curve, elongated).
  • Students can identify 2D shapes in real-world objects through a classroom shape hunt.
Vocabulary
hexagonovalellipseshape hunt

Lesson plan

Warm-up

5 min

Review: teacher shows shapes from yesterday in random order and rotations; class names them.

Teacher moves
  • Affirm correct names; gently rename for rotated-square 'diamond' errors.
  • Introduce hexagon and oval: 'two new friends today.'

Direct instruction

8 min

HEXAGON — six sides. Like a honeycomb cell or a stop sign (almost — stop signs are OCTAGONS, 8 sides — but hexagon is the cousin). OVAL — like a stretched circle, no corners, but not round. Like an egg.

Key examples
  • 6 sides + 6 corners = HEXAGON.
    model Class counts 1, 2, 3, 4, 5, 6 — touching each side.
    prompt Hold up yellow pattern-block hexagon. 'Count the sides together.'
  • Oval is like a circle that got stretched.
    model '0 corners! Curved! But stretched — not round.'
    prompt Hold up oval felt. 'Sides? Corners?'
Checks for understanding
  • How many sides does a hexagon have? (6)
  • Is an oval the same as a circle? (no — oval is stretched, circle is round)
Media
M-K-F-GM-14-A Photograph
Four-panel photo collage: (top-left) honeycomb close-up showing perfect hexagons; (top-right) yellow pattern-block hexag

Four-panel photo collage: (top-left) honeycomb close-up showing perfect hexagons; (top-right) yellow pattern-block hexagon on white background; (bottom-left) soccer ball showing black hexagon panels; (bottom-right) hexagonal floor tile pattern. Each labeled '6 sides, 6 corners — HEXAGON' in 18-pt text. Used to anchor real-world recognition.

Guided practice

7 min
Tasks
  • Classroom shape hunt: children walk in pairs with clipboards; find and tally 1 example each of circle, square, triangle, rectangle, hexagon, oval in the classroom or hallway.
    scaffold Pre-printed clipboard with shape outlines and a tally column.
  • Pairs report out: 'I found a hexagon — it was ___.'
Media
M-K-F-GM-14-B Chart
Clipboard worksheet 8.5"x11" titled 'SHAPE HUNT.' Six rows, one per shape (circle, square, triangle, rectangle, hexagon,

Clipboard worksheet 8.5"x11" titled 'SHAPE HUNT.' Six rows, one per shape (circle, square, triangle, rectangle, hexagon, oval). Each row has: (left) outline of the shape, (center) word, (right) 5 empty boxes for tally marks. Tally each example found in the classroom. Pencil column at right for child's name.

Formative assessment

2 min
Exit ticket
  • Teacher holds up hexagon and oval; child names each.
scoring Both named correctly = mastery snapshot; one correct = practicing; both wrong = reteach

Closure

Moves
  • Class chant adds: 'Hexagon 6 / Oval 0 — round but stretched out!'
  • Preview: 'Tomorrow we meet SOLID shapes — like a ball, a box, an ice-cream cone!'

Homework

5 min
Tasks
  • Look for a hexagon in your neighborhood (honeycomb, soccer ball, sign, tile). Draw it.

Exercises in this lesson

math.gK.f.gm.shapes_2d.ex_04
Look at this classroom photo. Find and circle 1 example each of: circle, square, triangle, rectangle, hexagon, oval.
find in picture · diff 3
math.gK.f.gm.shapes_2d.ex_05
Write the name of each shape below it. (Choose from: circle, square, triangle, rectangle, hexagon, oval.)
label shapes · diff 3

Differentiation

Scaffolds
  • Larger-format hexagon for vertex counting
  • Side-by-side oval and circle for direct contrast
Extensions
  • Introduce octagon (stop sign — 8 sides)
  • Identify pentagon (5 sides) on a chart
English Learners
  • Bilingual shape cards
  • Real-world photo + word card for hexagon and oval
Ieps 504s
  • Tactile-edge felt shape with raised vertices for counting
  • Reduce to one new shape (hexagon only)

Teacher notes

The shape hunt is the engagement engine — children get up, move, and find. The real-world recognition is the hardest part of shape work at K (NCTM PreK-2): a window is a rectangle, a clock face is a circle, a slice of pizza is a triangle. The hexagon is genuinely uncommon in real classrooms — soccer balls and honeycomb photos provide the anchor. Be ready for 'is a hexagon a polygon?' from precocious kids — answer 'yes, polygons are shapes with straight sides; you'll learn more in Grade 1.'