Compound Measures
Use compound units such as speed, unit pricing and density to solve problems (KS3)
Convert between related compound units (speed, rates of pay, prices, density, pressure) in numerical and algebraic contexts (KS4) 
Teaching for Understanding
Resources and ideas to promote understanding
Concrete and Pictorial
Density and Buoyancy (PHET)
A superb interactive for introducing ideas of density; try experimenting with the "mystery" block option where pupils use density to figure out the material used.
Archimedes and the Crown (Tyler DeWitt via YouTube)
Lovely explanation of density, mass and volume using the golden crown story.
A superb interactive for introducing ideas of density; try experimenting with the "mystery" block option where pupils use density to figure out the material used.
Archimedes and the Crown (Tyler DeWitt via YouTube)
Lovely explanation of density, mass and volume using the golden crown story.
Enrichment, Extension and Problemsolving
Resources to extend thinking, enrich lessons or enhance problemsolving skills
Linking to Real Life
Drinks Can  Mass, Density, Volume (C Norledge)
Contextbased problem using DMV calculation.
Speed, Distance, Time Calculations (C Norledge)
Problems involving use of speed = distance / time, with some conversion of units.
Largest Gold Ingot (C Norledge)
Use mass, density and volume to calculate the price of the Toi gold ingot.
How Fast is the Earth Moving (TwigWorld via YouTube)
Using approximation, speeddistancetime and circumference of a circle to estimate the speed of the Earth.
Contextbased problem using DMV calculation.
Speed, Distance, Time Calculations (C Norledge)
Problems involving use of speed = distance / time, with some conversion of units.
Largest Gold Ingot (C Norledge)
Use mass, density and volume to calculate the price of the Toi gold ingot.
How Fast is the Earth Moving (TwigWorld via YouTube)
Using approximation, speeddistancetime and circumference of a circle to estimate the speed of the Earth.
Extension Tasks
Deriving the SUVAT equations (C Norledge)
Get pupils to derive the five SUVAT equations by changing the subject. Includes set of problems to work on.
Get pupils to derive the five SUVAT equations by changing the subject. Includes set of problems to work on.
Quick Puzzles and Problems
Coming soon.
Longer Problems and Investigations
Block Density (C Norledge)
Make a block with an average density of 9g per cube. Can you find a block with an average density of 8g per cube? What other whole number averages can you make?
Make a block with an average density of 9g per cube. Can you find a block with an average density of 8g per cube? What other whole number averages can you make?
Other Links and Resources
Useful stuff that doesn't fit anywhere else
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