🔢 MathGrade 3Lesson 38
← Back🔒 PDF with full access

Measurement Scavenger Hunt

Lesson preview: the Mini Lesson and Vocabulary are open to everyone. Guided practice, exercises, the parent checklist and the printable PDF worksheet come with full access (free 7-day trial or membership).

Learning Objectives

  • 1Measure objects using standard units of length and mass
  • 2Record and compare measurements in a table
📘

Mini Lesson

Measurement means finding the size of something using a standard unit. We measure length in millimeters (mm), centimeters (cm), meters (m), or kilometers (km). We measure mass in grams (g) or kilograms (kg). We measure capacity in milliliters (mL) or liters (L).

Measurement Units

  • Length: 10 mm = 1 cm, 100 cm = 1 m, 1,000 m = 1 km.
  • Mass: 1,000 g = 1 kg. Use a balance or kitchen scales.
  • Capacity: 1,000 mL = 1 L. Use a measuring jug.
  • Area: length x width (in square units, e.g. cm squared).
  • Perimeter: add all the sides together.

Choosing the Right Tool

  • Ruler: best for measuring objects up to 30 cm.
  • Tape measure: best for longer objects or curved surfaces.
  • Kitchen scales: for measuring mass of food items.
  • Measuring jug: for measuring liquids.
Measurement scavenger hunt checklistA checklist with five household objects and blank spaces for length and mass measurements. A ruler icon and a balance scale icon are shown.Scavenger Hunt ChecklistRulerScalesPencil___ cm / gBook___ cm / gWater bottle___ cm / gLunch box___ cm / gChair___ cm / g
Unit reference card for length, mass, and capacityThree rows: length showing mm cm m km with conversion, mass showing g kg with conversion, capacity showing mL L with conversion.Units Reference CardLengthmm | cm | m | km10 mm=1 cm, 100 cm=1 mMassg | kg1,000 g = 1 kgCapacitymL | L1,000 mL = 1 L
💡

Always estimate first, then measure. This builds your "measuring sense"! Compare your estimate to the real measurement.

Vocabulary
Measure
To find the size or amount of something using a toole.g. I measure my pencil with a ruler.
Length
How long something ise.g. The length of the table is 1 meter.
Mass
How heavy something ise.g. The book has a mass of 500 grams.
Capacity
How much liquid a container can holde.g. The cup has a capacity of 250 milliliters.
Unit
A standard amount used to measuree.g. A centimeter is a unit of length.
Scavenger hunt
A game where you search for items on a liste.g. Our measurement scavenger hunt has 10 items.
Free · 7 days · No credit card

Unlock the full HSEA system for 7 days.

Add your first kid profile and your 7 days start: every lesson in every grade, saved progress for each child. Nothing to set up, no card required, nothing to cancel.

  • ✓ All 1,680 lessons, Grades 1–6, every subject
  • ✓ Profiles + saved progress for every kid
  • ✓ Printable lessons with answer key
Start your 7-day free trial →
Already convinced? See full membership plans →
← Lesson 37: Build Shape ArtLesson 39: Math Puzzle Day →