This Year 5 Count through Zero in 1s Teaching PowerPoint introduces children to counting forwards and backwards in ones through zero. Linked closely to our worksheets, this resource begins by recapping understanding negative numbers in the context of temperature before moving on to counting forwards and backwards through zero in ones using horizontal and vertical number lines. Our teaching slides carefully teach this skill and also include a selection of fluency, reasoning and problem-solving questions, along with answers, to help develop a secure understanding of the topic.