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Guide and features
Science, Technology, Engineering and Mathematics
Featured Early Years Foundation Stage; US Kindergarten
Featured UK Key Stage 1&2; US Grades 1-4
Featured UK Key Stage 3-5; US Grades 5-12
Featured UK Key Stage 1, US Grade 1 & 2
Featured UK Key Stage 2; US Grade 3 & 4
Featured UK Key Stages 3 & 4; US Grade 5-10
Featured UK Key Stage 4 & 5; US Grade 11 & 12
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Choose Your Units
Which units would you choose best to fit these situations?
Bigger or Smaller?
Why do this problem ?
Conversion between, and use of, units is a critical skill in the sciences, and one which often leads to confusion.
will encourage students to understand the relationships between various types of units, as well as possibly introducing them to new important scientific units.It will also help to embed the important skill of checking numerical answers to see if they make sense in terms of orders of magnitude.
This question works well through discussion in pairs. Remind the students that common sense works well when dealing with units.
In each case which is the small unit and which is the large unit?
Extension activities are given in the question. For a more challenging units question, try
choose your units
Restrict the question to the parts using common units related to length.
Maths Supporting SET
STEM - living world
Converting between units
STEM - physical world
Meet the team
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities can be found here.
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