Short Blocks

# Maths Year 5/6 Spring Measures

Each unit has everything you need to teach a set of related skills and concepts.

## Units of measurement(suggested as 3 days)

### Planning and Activities

Day 1
Hang a 0 card at one end of a washing line and 1000g with 1kg pegged beneath it at the other. Children peg different numbers of grams and kg (up to 2dp) along the line, then convert to kg/grams. Repeat for litres and ml.
Further Teaching with Y6
Write 0.458kg, 500g, 0.4kg, 250g, 0.678kg, 785g on cards and repeat as above.
Group Activities: T with Y6
Y5 -- Play a game converting between grams and kilograms (1 decimal place).
Fill in missing amounts on a 0–1kg line. Estimate to order containers by capacity; measure to check. Convert between litres and millilitres.
Y6 -- Play a game converting between grams and kilograms (1 or 3 decimal places).

Day 2
Write a variety of distances on the board and use these to convert between metres and kilometres (place value multiplication or division by 1000).
Introduce conversion between miles and kilometres. Together, draw a line graph for the conversion; read intermediate points of interest.
Group Activities: T with Y5
Y5/Y6 -- Construct a line graph to convert between miles and km.

Day 3
List imperial units other than miles, e.g. pints, pounds, stones, ounces, feet, inches, yards. Do children know the contexts where they are used? Using different familiar contexts (packet of crisps, baby’s weight, milk, etc.) explore equivalent metric units.
Group Activities: T with either or both
Use the in-depth problem-solving investigation ‘Inches and Barleycorns’ from NRICH as today’s group activity.
Or, use these activities:
Y5/Y6 -- Use known facts to convert between centimetres and inches, kilograms and stones/pounds, litres and pints.
Y5/Y6 -- Measure height in cm, convert to inches, draw line graph to check. Find out how many grams are in a pound.

### You Will Need

• 1kg weight
• Washing line with pegs and cards
• ‘Converting metric units’ (see resources)
• Scissors; Tape measures
• ‘Equivalent measures’ (see resources)
• Weighing scales; Measuring cylinder
• Range of containers with capacities between 100ml and 2l
• Graph paper, Squared paper, A3 paper
• ‘Conversion graph’ (see resources)
• Bag of crisps
• 30cm ruler; Pint glass
• Bathroom scales (that weigh in kg and stones); Kitchen scales (that weigh in g and oz)

### Short Mental Workouts

Day 1

Day 2
Multiply and divide by 10 and 100

Day 3

### Worksheets

Day 1
Y5/Y6: Convert from litres to millilitres, and vice versa; order by capacity.

Day 2
Y5/Y6: Convert between miles and kilometres.

Day 3
Y5/Y6: Convert between centimetres and inches.

### Mastery: Reasoning and Problem-Solving

Y5

• True or false?
1050g = 1.5kg.
1 pint is about 1.5 litres.
4 ounces is a bit more than 100g.
2.5 inches = 1 cm.
1 metre is a bit bigger than a yard.
• If we assume 3 miles = 5 kilometres, write the missing numbers:
☐ km = 30 miles
35 km is ☐ miles
☐ miles = 2.5 km
• What imperial unit would be used to measure:
the length of a large dog, nose to tail?
the weight of a child’s lunch box?
the capacity of a baby bath?

Y6

• Write a familiar object that weighs:
(a) 5 kg
(b) 1 pound
(c) 100g
• Write a familiar container that holds:
(a) 1 pint
(b) 5 ml
(c) 2 gallons
• True or false?
10 lots of 100 grams is 10 kilograms.
One tenth of a litre is 10ml.
Half a pint is about 1/4 of a litre.
You can weigh people in stones.
• Use this fact: 5 miles = 8km
15 miles is ☐ km.
☐ miles is 4 km.
64 km is ☐ miles.
Roughly how many miles is 250 km?

In-depth investigation: Inches and Barleycorns
How many barleycorns are the same length as 1 inch? Create your own conversion problems using this set of imperial length measurements. Inches and Barleycorns from nrich.maths.org.

### Extra Support

Y5
Baby Weigh In
Reading scales in kilograms to the nearest 0.1kg.

Weighty Conversions
Converting grams to kilograms.

Y6
Decimals Measure Up
Converting kilograms to grams and vice versa; Converting litres to millilitres and vice versa.