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One in a Million: Large and Small Numbers

Kit #101

Help your students grasp an understanding of what one in a thousand or one in a million is. Using pennies and the "power of 10" in this simple and interesting activity, students visualize that a million is a very large number. They conduct two different serial dilution activities that will impress upon them how very small numbers can have potential significance. Students perform a ten step 1:10 serial dilution using a colored ìcontaminantî then a colorless "contaminant" to make weaker and weaker solutions from 1:10 to 1:10,000,000,000. Using a chemical indicator, students next test the colorless "contaminant" for the presence of the contaminant. Serial Dilution is a valuable math-science link. It can be used to teach powers of 10, proportions and concepts of scale. You may want to introduce this technique prior to an inquiry investigation.

Details at a Glance

  • 1 Day | 1 ~50 minute class period
  • 2 Activities
  • Accommodates 24 classes, each with 16 groups of 2 students
  • Consumables service 768 students
  • Meets our criteria for supporting literacy
  • Requires a water source

Complete Kit Equipment Package

One in a Million: Large and Small Numbers

Need to Extend Your Kit Materials?

Scientific Concepts

• NCTM 6-8: Understanding numbers
• NSES 5-8 A: Abilities necessary to do scientific inquiry
• Properties and changes of properties in matter
• Populations, resources, and environments, science and technology in society

Guides & Student Sheets

Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.

  • Full downloadable Teacher Guide with background information, detailed instruction, example data and answers
  • Downloadable Student Sheets with age appropriate background information, full procedure(s), and analysis questions
  • All materials necessary to carry out the investigation
  • Safety Data Sheets

Kit Components

  • 32 Student Worksheets and Guides
  • 1 Teacher's Guide with MSDS
  • 16 Serial dilution trays
  • 16 Plastic Droppers
  • 2 Colored contaminant (Red Dye), Drop control bottle
  • 2 Colorless Contaminant, Drop control bottle
  • 2 Indicator Solution
  • 16 Water Bottles (Empty)
  • Not included and needed for instruction: Pennies.

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