Not Just Big — The Size-Word Hunt

A scavenger hunt where the word big is banned. Your child hunts for things that are taller, longer, wider, thicker, deeper, or heavier than an everyday object they carry around — and has to prove each find.

  1. Choose a “measuring buddy.” Pick one ordinary object to carry — a wooden spoon, a paperback book, or a shoe.
  2. Explain the rule. “Today big and small are on holiday. We need the exact word.” Show a few with the buddy — the spoon is long and thin; the book is wide and thick.
  3. Call the first hunt. “Find me something longer than the spoon.” Your child brings it back (or leads you to it) and proves it by holding the two side by side.
  4. Change the word each round. Shorter than… taller than… wider than… narrower than… thicker than… thinner than… heavier than… lighter than the buddy.
  5. Describe one object many ways. Pick one find and say everything about it — “This cushion is wider than the book, thicker than the book, but lighter than the book.”
  6. Swap roles. Your child calls the hunts and checks your finds — bring a wrong one now and then for them to catch.

Variation: on a walk, compare without a buddy — the tallest tree, the widest puddle, the deepest step, the thickest branch, the narrowest gap you can squeeze through.

Requirements

  • Space: One or two rooms of the home, a garden, or a walk outdoors
  • Surface: Not applicable
  • Materials: One everyday object as the measuring buddy (wooden spoon, paperback, shoe); everything else is already in the house
  • Participants: 1 child + 1 adult; siblings can hunt in turns or as a team
  • Supervision: Light — the adult calls the hunts, listens to the proof, and models the words

Rationale & Objective

Young children start with big and little for everything, and only gradually pick up words for particular dimensions — tall, long, wide, thick, deep. That vocabulary matters for more than talking: Common Core K.MD.A.1 asks kindergartners to describe several measurable attributes of a single object, which is impossible if every attribute is called big. Longitudinal research by Pruden, Levine and Huttenlocher (2011) found that the amount of spatial language parents used with their young children — a category that included dimension words such as big, tall, and long — predicted the children’s own use of those words and, in turn, their later performance on spatial tasks. The Head Start ELOF (P-MATH 8) and HighScope’s KDI 36 both describe children using measurement terms to describe and compare, and the comparative forms (wider than, heavier than) are exactly the terms the subdomain’s own measures look for. Proving each find by direct comparison keeps the words anchored to something the child can see and feel.

Progress Indicators

  • Early: uses big and small for every dimension; mixes up tall and long or wide and thick; brings back any larger object whatever word was called
  • Developing: uses long, short, and tall correctly and heavy and light with a prompt; finds a correct object for most hunts but proves it only when reminded
  • Proficient: uses longer, shorter, taller, wider, heavier, and lighter correctly in full comparing sentences; proves finds by lining them up side by side; catches the adult’s deliberate mistakes
  • Advanced: describes one object by three or more attributes; uses thicker, thinner, narrower, and deeper; notices that the same object can be longer than the buddy but lighter than it

Safety Notes

  • Agree which rooms and shelves are in the hunt, and that anything high up, heavy, or breakable is pointed to rather than carried
  • No climbing on furniture to reach a find — show me counts just as well as bring me
  • Outdoors, set clear boundaries for how far your child may go and stay within sight
  • If by 5 your child rarely uses any comparing words (bigger, longer, more) or finds simple comparisons confusing in everyday talk, it is reasonable to raise it with your pediatrician or a speech-language therapist

Hints

  • Playfulness: make a silly buzzer noise whenever anyone — especially you — says big or small by accident, and let your child be the buzzer
  • Sustain interest: change the measuring buddy each time (a banana, a toy dinosaur, your child’s own arm) and keep a tally of how many different size words you used
  • Common mistake: accepting a pointed finger as proof. Ask for the words every time — tell me how you know — because saying the comparison is the skill being practised
  • Limited space: play it sitting down with a basket of ten household objects, or as a car or waiting-room game — I spy something taller than the lamp post
  • Cross-domain: opposites pairs (wide and narrow, thick and thin, deep and shallow) are rich vocabulary work (language); the hunt gets children moving around the house (gross motor)
  • Progression: long, short, tall → heavier and lighter → wide, narrow, thick, thin → describe one object two ways → three ways → child calls the hunts and judges the proof

Sources

  • Common Core State Standards for Mathematics, Kindergarten — K.MD.A.1 (describe measurable attributes of objects; describe several measurable attributes of a single object)
  • Pruden, S.M., Levine, S.C. & Huttenlocher, J. (2011). Children’s spatial thinking — does talk about the spatial world matter? Developmental Science, 14(6), 1417–1430
  • Head Start Early Learning Outcomes Framework, Mathematics Development — Goal P-MATH 8
  • HighScope Preschool Curriculum — Mathematics KDI 36 (Measuring — children measure to describe, compare, and order things)
  • UK EYFS Development Matters (2021) — Mathematics (make comparisons between objects relating to size, length, weight and capacity)
  • Montessori Sensorial materials — Pink Tower, Brown Stair, and Red Rods (isolating one dimension at a time, with the matching vocabulary)