The Year 1 1 Less PowerPoint guides both teachers and children through the lesson, including use of the varied fluency, reasoning and problem solving, practical activities and continuous provision resources. Key learning information about this step:
Key Vocabulary
one less: Count backwards by one.
number track: A representation of numbers in order. It helps us to count forwards and backwards.
Adult-Led Practical Activities
• Activity 1: remove a counter from a ten frame to work out 1 less
• Activity 2: move a counter back one space on a number track to work out 1 less. This can be taken outdoors if preferred.
You will need:
• a ten frame and counters
• a track and counters
• chalk and a large dice (optional)
Why not try…
• count one less when a child gets off the ‘walking bus’.
• take one away from a group of objects and saying how many are left.
• read a countdown story and work out 1 less every time a character leaves.
Varied Fluency H2
• Q1: complete a number sentence using an image to support.
• Q2: find 1 less than two given numbers.
Reasoning and Problem Solving
• Q1: Reasoning - explaining whether a child’s statement about 1 less/1 more is correct or not.
• Q2: Problem Solving – finding two different ways to complete a sentence about 1 less.
Continuous Provision
• Maths games area – find 1 less using a number track and labelled dice
• Construction area – knock one brick off of a tower and say how many bricks are left
• Creative area – draw a monster with teeth and say how many left after one tooth falls out
• Small World area – toy cars in parking bays and say how many cars are left after one drives away
• Outdoor area – jump back one on a chalk number track and say what 1 less is
• Water area – ‘rescue’ one object at a time from the water and say how many objects left
• Outdoor – bowl over one skittle at a time and say how many are skittles left
• Role play area – count how many passengers are still on the bus after one gets off
