LO: Read scales and convert measures. ·Use a system to work out increments ·Read scales...

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LO: Read scales and convert measures.

·Use a system to work out increments

·Read scales accurately.

·Covert measures once scales have been read.

Success CriteriaI can...

Can you remember the important measures conversions?

1 Kg = 1000g

1 Km = 1000m

1L = 1000ml

1m = 100 cm1 cm = 10mm

Measures_l_ml.ppt

length conversion WWtbaM.ppt

mass_wwtbam.ppt

capacity_wwtbam_LJ.ppt

Can you remember Mr Heap's system for reading scales?

DirectionEstimateIncrementsFillAccurateMeasurements

Activity 1

Design reading scales questions for your partner. You will need to give them some measurements to help them and an arrow showing the measurement needed.

Activity 2 Design word questions to go with the scales. How much/many more...?How much is left...?How much water is needed to make...?What is the difference between...?

This is the scale on the side of a measuring jar.There is some coloured water in the jar.

How much more water is needed to make 2 litres?

·Convert measures into the same measurement e.g. kg to g

·Read the question and underline key information

·Choose the correct operation to work it out

·Organise the calculation clearly in my book to get the final answer

LO: To solve problems involving measures.

Success CriteriaI can...

Activities

1. Testbase

2. Own measures word problems - 2 step, conversion

The information is in metres and centimtres it will make it easier to work out if I change it all to one measurement.

What operation is the question asking us to use?

What will the calculation look like?

What is the answer, with the unit as well?

20m = 2000cm

subtration

2000 - 150

1850 cm or 18.5m

There is a fence which is 20 metres long. The wind blows 150 cm of it away. How much of the fence is left?

There are 3 balls of cotton. Each of pieces of cotton are 3 metres long. How many cm of string are there altogether?

The information is in metres, the answer need to be in cm, so we need to covert the information first.

3m = 300cm

multiplication

3 x 300

900 cm

The information is in metres and the answer needs to be in cm I will need to convert the m into cm.

1.5m = 150cm

multiplication

150 x 3

450 cm

There are 3 rolls of wrapping paper. Each roll has 1.5 m of wrapping paper on it. How many cm is there of wrapping paper altogether?

Cheese

Coffee

60 p for 100 grams

£4.80 for 1 kg

90p for 200 grams

£1.20 for 125 grams

75p for 1 litre

How much would it cost for 200 grams of ham?How much would it cost for 500 grams of tea?If you spend £2.40 on coffee how much coffee would they have bought?

Teacher Note: Questions are piled on top of one another.

What is this device going to measure in?

Grams and Kilograms

How many grams?

0.9 kg

How many kilograms?

How many ml?

How many litre?

3.5 cm

How many cm?

2.1 cm

How many cm?

How many mm?

100 200

What does each line represent?