Interactive

Estimation to Check Decimal Multiplication: Watering a Garden

Curated and Reviewed by Lesson Planet

Mathematicians solve six multiple-choice and true or false questions using their knowledge of estimation and multiplying decimals. The interactive provides a garden-themed tool that creates a visual aid of three watering cans to assist in the problem-solving process. A discussion question concludes the practice.  

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Bring the interactive to life—have three large containers or watering cans available for learners to fill as they work through the practice 
  • Assign the interactive as a May Do activity, bookmark the link to make locating the site easy for users 
  • Send the link home for class members to practice, direct them to answer the discussion question on a classroom blog where they can respond to at least one peer 
Classroom Considerations
  • Pupils should know how to multiply and round decimals 
  • The interactive requires a free CK-12 account
Pros
  • Responses are graded instantly 
  • Hints and information is provided if needed 
Cons
  • Watering cans do not fill to exact numbers
Common Core